The presence of parasitic structures in sandy soil samples from beaches located along the north coast of Rio Grande do Sul, Brazil

Beaches are a source of parasite contamination because protozoan cysts and helminth eggs and larvae can remain viable in sandy soils for months. Parasitic infections are mainly related to hygiene conditions, health, and environmental education, and can affect the life quality of the population. Therefore, this study aimed to assess the presence of parasitic structures in five beaches located along the north coast of Rio Grande do Sul, Brazil. Eighty samples were collected in August and September 2020 at the beaches of Torres, Tramandaí, Capão da Canoa, Arroio Teixeira, and Arroio do Sal and processed with the spontaneous sedimentation method for microscopic analyses. The results showed that 32% (26/80) of samples were positive for the presence of parasitic structures, and there was a significantly higher frequency of positive samples in September than in August. Torres was the beach with the highest frequency of positive samples, while Arroio Teixeira and Arroio do Sal presented the lowest frequency of contamination. Nematode larvae, including hookworm larvae, were the most prevalent parasitic structures in the samples. Hence, the sandy soil from beaches must be monitored to develop programs and strategies for improving infrastructures and basic sanitation conditions, thus ensuring the health of the population.

Ecotoxicología ¿Cómo afecta a las comunidades faunísticas de las playas del Pacífico de Guatemala? / How ecotoxicology affect the fauna on the Pacific Guatemala's beaches?

La ecotoxicología estudia los efectos de los contaminantes químicos producidos por acción antropogénica en los diferentes ecosistemas. Las playas, son un ecosistema de interés, ya que en estas ocurre una gran cantidad de sedimentación y por lo tanto tienen la capacidad de acumular significativas concentraciones de contaminantes químicos. En Guatemala, las playas del Pacífico son un sujeto ideal para el estudio ecotoxicológico, debido a la fuerte actividad agrícola que ocurre en la parte alta del litoral que causa el uso frecuente de contaminantes químicos. Los contaminantes químicos con más uso son los insecticidas y entre ellos destacan los compuestos organoclorados y el metil paratión, muy utilizados por su alta efectividad en el control de plagas agrícolas. El uso constante de estos compuestos causa que sean depositados en el sedimento que forma las playas, causando que sean absorbidos por organismos de todos los niveles tróficos, desde productores primarios como plancton hasta consumidores secundarios como reptiles. Regular el uso de estos compuestos es de interés común, debido a los impactos negativos que pueden acarrear sobre los ecosistemas costeros en donde ocurre una gran actividad tanto comercial, como recreativa por parte de las comunidades costeras. Mitigar el impacto de estos compuestos solo será posible si los actores que inciden en toda el área litoral del Pacífico toman conciencia de la potencial degradación de las playas y la importancia de su función tanto para las actividades antropogénicas diarias como para la convergencia ecológica de las múltiples especies que dependen de las mismas para su supervivencia.

Ecotoxicology studies the effect of chemical pollutants produced by anthropogenic action on different ecosys-tems. Beaches are an ecosystem of interest, since a large amount of sedimentation occurs on these places and therefore they have the capacity to accumulate significantly higher concentrations of chemical pollutants compared to terrestrial or aquatic ecosystems. In Guatemala, the beaches in the Pacific coast are an ideal subject for ecotox-icological studies, due to the strong agricultural activity occurring in the highlands that produces a great amount of chemical pollutants and the by-products end up in the beaches as a consequence of pluvial and rivers runoff activity. The most widely used chemical are insecticides and among them, organochlorine compounds and methyl parathion stand out, widely used in part, due to their high effectiveness in pest control. The constant use from these compounds causes them to be absorbed by organisms in all trophic levels, from primary producers to secondary consumers. Regulating the use of these compounds is of common interest, because of the negative impacts on coastal ecosystems where there occurs great commercial and recreational activity from coastal communities. Mitigating the impact of these compounds will only be possible if actors influencing the Pacific littoral area, become aware of the potential beach destruction and the importance of their function both for daily anthropogenic activities and ecological convergence of multiple species that depend on the beaches for their survival.

Contaminación por microplásticos en playas del Pacífico de Guatemala: abundancia y características / Microplastics pollution in Pacific beaches of Guatemala: abundance and characteristics

La contaminación por microplásticos (MPs) de tamaño menor a 5 mm ha tomado relevancia en los últimos años debido a su impacto en los ecosistemas. En Guatemala, se carece de información relacionada con MPs, por lo que este estudio tuvo como objetivo evaluar la abundancia y características de MPs en cuatro playas del Pacífico de Guatemala, Ocós, Tulate, Sipacate y Las Lisas. Se colectaron muestras de arena en mayo y octubre de 2019. Los MPs se aislaron y se clasificaron por forma, y el tipo de polímero se identificó a través de un equipo de espectroscopia infrarroja con transformada de Fourier (ATR-FTIR). La abundancia expresada en MPs/m2 en mayo fue de 25.6, 5.6, 0.8 y 0 MPs/m2 para Tulate, Las Lisas, Ocós y Sipacate; mientras que en octubre fue de 59.6, 23.2, 17.6 y 17.6 MPs/m2 en Tulate, Ocós, Las Lisas y Sipacate. Fragmentos, foam, pellets y láminas fueron las formas predominantes de MPs que se encontraron en las playas. El análisis por ATR-FTIR muestra que los principales polímeros identificados en las playas son polietileno, poliestireno y polipropileno. Los resultados de este estudio indican que las playas del Pacífico de Guatemala están contaminadas por MPs de diferentes tipos de polímeros. Además, estos resultados ofrecen información importante a los responsables de la toma de decisiones sobre la eliminación y el manejo de la basura plástica marina.

Microplastics < 5 mm (MPs) pollution has gained relevance in the last years because of its impact on the ecosystems. In Guatemala, information related to MPS as an environmental stressor is lacking, that is why this study aimed to assess the abundance and characteristics of MPS in four beaches to the Pacific Ocean of Guatemala, Ocós, Tulate, Sipacate, and Las Lisas. Sand samples were collected in May and October 2019. MPs were isolated and classified by shape and the type of polymer was identified by using Attenuated Total Reflec-tion-Fourier Transform Infrared Spectroscopy (ATR-FTIR). The abundance expressed in MPs/m2 in May was 25.6, 5.6, 0.8 and 0 MPs/m2 in Tulate, Las Lisas, Ocós, and Sipacate; whereas in October was 59.6, 23.2, 17.6, and 17.6 M Ps /m2 in Tulate, Las Lisas, Ocós and Sipacate. Fragments, foam, pellets, and film were the predominant shapes found on the beaches. The ATR-FTIR analysis indicates that the main polymers identified in the beaches are polyethylene, polystyrene, and polypropylene. The results of this study indicate that the Pacific Beaches of Guatemala are contaminated by MPs of different types of polymers. These results offer important information to decision makers about disposal and management of marine plastic litter.

Parasite detection in sand from bays on the north coast of São Paulo state, Brazil

Soil contamination by protozoan parasites and soil-transmitted helminths (STH) is common in beach sand due to a number of factors such as pets, pluvial water, garbage, etc. These pathogens may cause many diseases in humans and animals and become a public health problem. Thus, systematic evaluation and inspection are necessary to develop control strategies regarding public contamination. For this purpose, our aims were to evaluate the parasitic profile of sandy soils on an urban beach and an untouched beach and correlate this with environmental and seasonal characteristics in Ubatuba, Brazil, in two seasons (winter and summer). 132 soil samples were collected for parasite analysis utilizing Rugai's method and the sedimentation adapted method. Our results showed positivity in 62% of the samples for at least one parasite in the urban beach and no parasitic structures on the untouched beach. The positivity was higher in summer (85%) than in winter (51.7%). All samples were positive for both, helminths and protozoa. Seasonal influence was noted regarding the presence of STH while for protozoa this influence was not observed. The parasitic structures most found were larvae of hookworms (35%) and Toxocara eggs (31.7%). We also noted the presence of Strongyloides sp, Ascaris lumbricoides, coccidia, Dipylidium caninum, Entamoeba hystolitica/dispar, Endolimax nana, Entamoeba coli, Giardia sp, Toxascaris leonina, Trichuris sp and Dibothricephalus latus. There was a positive correlation between temperature and the presence of STH in the sand samples. Most of the collection sites on the urban beach presented dogs or canine traces and garbage in both seasons. There was an association between the presence of dogs or their traces and parasitic structures. In conclusion, seasonality, urbanization and the presence of pets on beaches can potentially favor environmental contamination by parasites increasing the risk of transmission of zoonotic and parasitic diseases.

Efficacy and manner of execution of the serve in top-level womens beach volleyball players / Eficácia e maneira de execução do serviço em jogadoras de voleibol de praia de alto nível

ABSTRACT The study of the manner of execution (technique, and spatial aspects) can provide useful information to understand the game dynamics in beach volleyball and to obtain references values for the analysis of the game and the establishment of training goals. The aim of the study was to determine the influence of the manner of execution on serve and rally performance in elite women's beach volleyball players. A total of 3,009 serves from 44 women's players were analyzed. The variables studied were: serve technique, serve zone, serve destination, serve performance, and rally performance. An observational punctual, nomothetic, multidimensional, and intragroup design was used. A descriptive and inferential analysis of the data (Chi-Square Test) was done using SPSS v.21.0 software. The level of significance was set at p < .05. The manner of execution influences the serve performance. The jump float serve was the most used. The most effective destination was the zone between players, probability due to the players' displacement and interference between them. An absence of association between serve technique and rally performance was found. These findings showed possible connections between the way of executing the serve with the following actions done by the players and the players' strategies to control their physical load. These values may be useful to guide to players training, or to evaluate players in competition.

RESUMO O estudo da forma de execução (técnica e aspectos espaciais) pode fornecer informações úteis para compreender a dinâmica do jogo no vôlei de praia e obter valores de referência para a análise do jogo e o estabelecimento de metas de treinamento. O objetivo do estudo foi determinar a influência da forma de execução no desempenho de saque e rali em jogadores de vôlei de praia de alto nível. Um total de 3.009 saques de 44 jogadoras de alto nível foram analisados. As variáveis ​​estudadas foram: técnica de saque, zona de saque, destino do saque, desempenho de saque e desempenho de rali. Um desenho observacional pontual, nomotético, multidimensional e intragrupo foi utilizado. Foi realizada uma análise descritiva e inferencial dos dados (Teste Qui-Quadrado) utilizando o software SPSS v.21.0. O nível de significância foi estabelecido em p <0,05. A maneira de execução influencia o desempenho do saque. O saque flutuante de salto foi o mais usado. O destino mais efetivo foi a zona entre jogadoras, provavelmente devido ao deslocamento das jogadoras e a interferência entre elas. Não foi encontrada associação entre a técnica de saque e o desempenho de rally. Esses achados mostraram possíveis associações entre a maneira de executar o saque com as ações seguintes realizadas pelas jogadoras e as estratégias das jogadoras para controlar sua carga física. Esses valores podem ser úteis para orientar o treinamento de jogadoras ou avaliar jogadoras em competição de vôlei de praia.

Sargazo: la irrupción atípica de un ecosistema milenario / Sargassum: the atypical irruption of an ancient ecosystem

Resumen El sargazo es un ecosistema marino milenario que circula en el sentido de las manecillas del reloj en el Océano Atlántico. A partir de 2011, el alga flotante que lo compone ha comenzado a recalar en playas de 19 países del Caribe, con consecuencias ambientales, sanitarias y económicas que deben atenderse con urgencia.

Abstract Sargassum constitutes an ancient marine ecosystem that circulates clockwise on the Atlantic Ocean. Upon 2011, the pelagic seaweed which is the main component of sargassum started to reach beaches on 19 Caribbean countries, with environmental, health and economic impacts that need to be addressed urgently.

"DEIXA AMOR": A cultura do futebol de praia na perspectiva de um grupo de lazer / "DEIXA AMOR": The culture of beach soccer in the perspective of a leisure group

É objeto deste estudo o grupo de lazer Deixa Amor, estruturado há mais de uma década na cidade de São Pedro da Aldeia-RJ, o qual tem como álibi para seus encontros semanais, a prática do futebol de praia, realizada na Praia do Boqueirão aos domingos pela manhã. Trata-se de um grupo formado por 30 indivíduos do sexo masculino, com idade igual ou superior a 40 anos. Por meio de um estudo de caso, utilizando entrevista de grupo focal, observação participante, diário de campo e gravação de áudio e vídeo, objetiva-se com este artigo, compreender em profundidade os sentidos que os sujeitos envolvidos atribuem ao esporte de lazer que praticam e, os significados daquilo que chamam de lazer pela prática do esporte competitivo, sem que este denote, para o grupo, competição. Como resultado, encontrou-se um grupo bastante estável no que se refere à manifestação do esporte de praia na cultura local, sem muita influência da esportivização, ainda que se perceba em sua prática e narrativas, discursos acerca da competição. No entanto, apesar de sustentar o perfil do homo competitivus, a inventividade e a liberdade deste grupo são características que superam as limitações da idade e, forjam um estilo de homo ludens que não nega a sua natureza competitiva.

It is the object of this study the leisure group Deixa Amor, structured over a decade ago in the city of São Pedro da Aldeia-RJ, which has as an alibi for its weekly meetings, the practice of beach soccer, held at Praia do Boqueirão Sundays in the morning. It is a group of 30 male individuals, aged 40 years or over. Through a case study, using a focus group interview, participant observation, field diary and audio and video recording, this article aims to understand in depth the meanings that the subjects involved attribute to the leisure sport they practice and, the meanings of what they call leisure for the practice of competitive sport, without this denoting, for the group, competition. As a result, a fairly stable group was found with regard to the manifestation of beach sport in the local culture, without much influence of the sportivization, although it is perceived in its practice and narratives, discourses about the competition. However, in spite of sustaining the profile of homo competitivus, the inventiveness and freedom of this group are characteristics that overcome the limitations of age and, they forge a style of homo ludens that does not deny its competitive nature.

Contamination by parasites of zoonotic importance in fecal samples from Florianópolis Beaches, Santa Catarina State, Brazil / Contaminação por parasitas de importância zoonótica em amostras fecais nas praias de Florianópolis, SC, Brasil

Helminths and protozoa are examples of endoparasites that, during their biological cycles, can alternate between free-life stages and parasitic stages in the environment. Pets, such as dogs and cats, live together with men and play an important role in the society; however, these animals may carry a large number of parasites which, besides showing direct pathogenicity to the host, represent risks to the human health, as is the case of parasitic zoonoses. Public areas like parks, gardens, squares and beaches may offer risks to human users since these environments may contain feces deposited by parasitized dogs. The present study verified the occurrence of helminth eggs and/or protozoan cysts or oocysts in fecal samples collected from sand strips at the beaches Armação do Pântano do Sul, Campeche and Morro das Pedras, in the south of Florianópolis Island, Santa Catarina State (SC), during the summer period. Pet feces were collected in the 2016/2017 summer season, from December 2016 to February 2017. In the Laboratory of Animal Parasitology (CCA-UFSC), fecal samples were processed based on Willis-Mollay flotation technique and Hoffman sedimentation technique. Samples from all three analyzed beaches were positive for the presence of parasites and fecal material was found along the seashore, sites where people walk freely and barefoot. Of 104 fecal samples collected, 45 (43.27%) were positive for one or more parasites. The greatest prevalence was found in Campeche Beach, which had 72.22% positive samples. Ancylostomids were most prevalent, indicating that cutaneous larva migrans is likely to occur in humans. Other parasites such as Trichuris vulpis, Toxocara spp. and Giardia spp. were also detected in coproparasitological analyses. Based on the results, it was concluded that contamination of the beaches in Florianópolis Island, SC, constitutes a public health problem due to the possibility of zoonosis transmission. These results reinforce the importance of establishing health programs for parasite control and educational programs for elucidating the risks of transmission of these zoonoses to the population, as an attempt to reduce environmental contamination risks at beaches of seaside resorts.(AU)

Helmintos e protozoários são exemplos de endoparasitas que, durante seus ciclos biológicos, podem alternar fases de vida livre e de vida parasitária no ambiente. Animais de companhia, como cães e gatos, possuem convívio direto com o homem e desempenham importante papel na sociedade, porém estes animais podem possuir muitos parasitas próprios que, além da patogenicidade direta ao hospedeiro, representam riscos à saúde humana, no caso das zoonoses parasitárias. A utilização de áreas públicas como parques, jardins, praças e praias por estes animais, pode oferecer riscos aos seus frequentadores humanos, uma vez que pode ocorrer a deposição de fezes nesses ambientes por cães parasitados. O presente estudo investigou a ocorrência de ovos de helmintos e/ou cistos ou oocistos de protozoários em amostras de fezes coletadas nas faixas de areia das praias da Armação do Pântano do Sul, Campeche e Morro das Pedras, no sul da ilha de Florianópolis, Estado de Santa Cararina-SC, Brasil, durante o período de verão. As coletas de amostras de fezes de animais domésticos foram realizadas na temporada de verão 2016/2017, a partir de dezembro de 2016 até fevereiro de 2017. No Laboratório de Parasitologia Animal (CCA-UFSC), as amostras de fezes foram processadas pela técnica de flutuação de Willis-Mollay e pela técnica de sedimentação de Hoffman. Amostras colhidas nas três praias analisadas mostraram-se positivas para a presença de parasitos. Material fecal foi observado ao longo de toda orla, locais em que as pessoas caminham livremente e sem calçados. De um total de 104 amostras de fezes coletadas nas praias, 45 (43,27%) estavam positivas a um ou mais parasitas. A praia do Campeche foi a que apresentou maior prevalência, com 72,22% de amostras positivas. Os ancilostomídeos, responsáveis pela larva migrans cutânea em humanos, foram os mais prevalentes. Outros parasitas como Trichuris vulpis, Toxocara spp. e Giardia spp. também foram detectados nas análises coproparasitológicas. Com base nos resultados obtidos, concluímos que a contaminação das praias na Ilha de Florianópolis, SC, constitui um problema de saúde pública, devido à possibilidade de transmissão de zoonoses. Estes resultados reforçam a importância da implantação de programas sanitários de controle de parasitas e programas de educação, esclarecendo os riscos de transmissão destas zoonoses à população, a fim de reduzir os riscos de contaminação ambiental nas praias de balneários.(AU)

Human envenomations caused by Portuguese man-of-war (Physalia physalis) in urban beaches of São Luis City, Maranhão State, Northeast Coast of Brazil

ABSTRACT INTRODUCTION: The clinical and epidemiological aspects associated with Portuguese man-of-war envenomation were investigated and characterized. METHODS: Data from recorded envenomation events between 2005 and 2013 were provided by the GBMar (Group of Firemen Maritime of Maranhão State) and SEMUSC (Municipal Secretary of Security with Citizenship). RESULTS: Most victims were children, and clinical manifestations included intense pain, edema, erythema, and rare systemic manifestations. CONCLUSIONS: The envenomation events were predictable and based on patterns involving multiple factors (environmental and/or human behavior); however, the initially applied measures did not match the current recommendations of the Health Ministry of Brazil.

Efectos del disturbio humano sobre la dinámica poblacional de Ocypode quadrata (Decapoda: Ocypodidae) en playas del Caribe mexicano / Effects of human disturbance on the population dynamics of Ocypode quadrata (Decapoda: Ocypodidae) in beaches of the Mexican Caribbean

Resumen:El cangrejo fantasma Ocypode quadrata, tiene una alta relevancia ecológica en las playas del Atlántico occidental y se ha propuesto como un indicador del impacto humano sobre este ecosistema. Sin embargo, no se han evaluado los efectos del disturbio humano sobre su dinámica poblacional. En este trabajo se compara la abundancia, el crecimiento y la mortalidad de O. quadrata en dos playas perturbadas (Aventuras y Majahual) y dos playas conservadas (Xcacel y Puerto Ángel) de las costas del Caribe mexicano. Se realizaron nueve muestreos en cada playa (marzo/2013-noviembre/2014). Durante las primeras horas de la noche se recolectaron cangrejos, de forma manual por tres personas, en un área aproximada de 9 000 m2. Los cangrejos fueron medidos, pesados y separados en tres grupos: jóvenes, hembras y machos. La mayor abundancia de cangrejos se encontró en las playas conservadas pero solo se observaron diferencias significativas entre Puerto Ángel y Majahual (Tukey, p<0.05). La proporción jóvenes- adultos fue 1:1 en Xcacel y Aventuras. En Majahual se recolectó un mayor número de jóvenes que adultos y en Puerto Ángel el número de adultos triplicó el de jóvenes. La talla máxima para Aventuras, Xcacel, Majahual y Puerto Ángel fue de 27, 32, 25 y 30 mm, respectivamente. En las playas se encontraron entre dos y tres grupos de edades diferentes. En las cuatro playas se recolectaron individuos con tallas menores de 10 mm en casi todos los meses de muestreo, indicando que el reclutamiento es continuo durante todo el año. La relación entre la longitud y el peso del cangrejo fantasma fue isométrica en las playas mejor conservadas y alométrica negativa en las playas impactadas. Los cangrejos de Puerto Ángel mostraron mejor condición corporal que en el resto de las playas (Tukey, p<0.05). Los valores de K oscilaron entre 0.6-0.97/año y la L∞ entre 29.0-33.6 mm. Los cangrejos en las dos playas conservadas mostraron mayores parámetros de crecimiento en comparación con las dos playas perturbadas. Los mayores valores de mortalidad se encontraron en Xcacel y Aventuras. En las playas perturbadas, la destrucción de las dunas, la limpieza mecánica y la remoción de materia orgánica, parecen ser las principales causas que conllevan a una baja abundancia de cangrejos, un menor crecimiento y una alta mortalidad. Sin embargo en las playas mejor conservadas, las relaciones biológicas parecen ser más importantes en regular la dinámica poblacional de esta especie. Estos resultados tienen relevancia desde el punto de vista de manejo de las playas arenosas, ya que el cangrejo fantasma es un buen indicador del disturbio humano y sus respuestas poblacionales son medibles y comparables.

Abstract:The ghost crab Ocypode quadrata is a relevant species in the Western Atlantic beaches, and has been proposed as an indicator of human impact in these ecosystems. Eventhough some studies have covered various aspects of its natural history, no evaluations on the effects of human disturbance on its population dynamics have been made. This work compared the abundance, growth, and mortality of O. quadrata in two disturbed beaches (Aventuras and Majahual) and two preserved beaches (Xcacel and Puerto Angel) from the Mexican Caribbean. For this, nine samplings were made on each beach (every two to three months) between March 2013 and November 2014. Crabs were collected manually by three people, during the night first hours and for one hour, and a total area of 9 000 m2 per beach. The crabs were measured, weighed, and separated into three groups: juvenile, male and female; while abundance was estimated by the number of collected crabs, and growth parameters were estimated using length frequencies. A total of 1 047 crabs were sampled in the four beaches; a higher crab abundance was found in the preserved beaches, but significant differences were only found between Puerto Angel and Majahual (Tukey, p<0.05). The adult- juvenile ratio was 1:1 in Xcacel and Aventuras, while in Majahual, more juveniles than adults were collected; and Puerto Angel had more adults than the juveniles. The size structure at Xcacel ranged from 4-32 mm, but in the rest of the beaches the minimum size was 5 mm. The maximum size at Aventuras, Majahual and Puerto Angel were 27 mm, 25 mm and 30 mm, respectively. The modal progression analysis of length's pooled data, revealed the presence of at least two groups of ages in all beaches. For all beaches, individuals smaller than 10 mm length were collected in almost all sampling months, indicating a continuous recruitment throughout the year. The length-weight relationship of the ghost crab was found isometric in the two preserved beaches, and negative allometric at the two impacted beaches. Crabs from Puerto Angel showed the highest body condition (Tukey, p<0.05). K-values ranged from 0.6-0.97/year and L∞ from 29.0 mm to 33.6 mm with higher values for the two preserved beaches. The highest mortality values were found in Xcacel and Aventuras. In the disturbed beaches, the destruction of the dunes, the mechanical cleaning and the removal of organic matter, seem to be the main causes that lead to a low abundance of crabs, their slower growth and higher mortalities. However, in the best preserved beaches, biological interactions appear to be the most important aspects in regulating the population dynamics of this species. These results supported the information that the ghost crab is a good indicator of human disturbance, and its population changes were clearly measurable and comparable among protected and impacted beaches; these results are also relevant for the management of sandy beaches in the Mexican Caribbean. Rev. Biol. Trop. 64 (4): 1625-1641. Epub 2016 December 01.

Experiências de envelhecimento no ambiente de praia / Experiences of aging on the beach environment

Este estudo busca investigar as práticas corporais dos idosos no ambiente da praia como experiência contemporânea do envelhecimento, por meio de pesquisa de campo de tipo etnográfica. Os resultados indicam que a imagem do idoso na praia atinge um estado multifacetado, porque não se apresenta radicalmente diferente das práticas corporais adotadas pelos jovens, nem ela é totalmente equivalente àquela configurada como do velho, provocando, assim, novos focos sobre o idoso na praia na era contemporânea.

This study aims to investigate the bodily practices of the elderly in the beach environment as contemporary experience of aging through ethnographic research. The results indicate that the image of the elderly at the beach reaches a multifaceted state because it has not radically different bodily practices adopted by young people, or configured as fully equivalent to those of old, thus bringing new focus on the elderly in the contemporary era.

Occupation and factors associated with exposure to the sun among beach workers / Ocupação e fatores associados a exposição solar em trabalhadores de praias

Subjects were selected from five urban beaches to characterize the type of work conducted on urban beaches in the city of Natal, state of Rio Grande do Norte, Brazil, and determine potential associated factors among workers exposed to the sun. Data collection was based on a validated questionnaire. Results were obtained for 362 workers. Individuals were predominantly male (72.6%) who worked under direct exposure to the sun (87.8%). Almost 95% had no more than 6 years of schooling and 87.91% earned an average monthly income of $318.75 dollars or more. Photoprotection was reported by 80.1%, among which sunscreen and caps/hats were predominant. Around 25% smoked and more than half did not consume alcohol. Male gender, no more than 6 years of schooling, daily exposure for up to 6 hours and use of photoprotection were the factors associated with the outdoor work category.

Para caracterizar o tipo de trabalho realizado nas praias urbanas na cidade de Natal, RN, Brasil, e determinar possíveis fatores associados entre trabalhadores expostos ao sol, foram selecionados sujeitos em cinco praias urbanas. A coleta de dados foi baseada em um questionário validado. Os resultados foram obtidos para 362 trabalhadores. Indivíduos eram predominantemente do sexo masculino (72,6%), que trabalharam sob exposição direta ao sol (87,8%). Aproximadamente 95% tinham até 6 anos de escolaridade e 87,91% ganhavam em média $ 318,75 dólares ou mais por mês. Medidas de fotoproteção foram relatadas por 80,1%, entre os quais protetor solar e bonés/chapéus se destacaram. Cerca de 25% fumava e mais da metade não bebia álcool. O gênero masculino, escolaridade até 6 anos, a exposição diária por até 6 horas e o uso de fatores de fotoproteção foram associados com a categoria de trabalhado outdoor.

Territorial disputes, identity conflicts, and violence in surfing / Disputas territoriais, conflitos de identidade e violência no surfe / Disputas territoriales, conflictos de identidad y la violencia en el surf

Aggressive manifestations of localism are a current concern among surfers and are becoming well known as a result of specialized media. The objective of this paper was to investigate this phenomenon through the examination of a specific case and empirical fieldwork that was conducted for an ethnography of São Paulo surfers. The data were obtained via participant observations and open interviews. The results indicate that conflicts generally begin as disputes over the best waves. Surfing has a general rule of "wave priority criteria," based on spatial positioning. However, this universal rule may be intentionally broken depending on surfers' sociability. Ethnic and class differences based on historical processes can exist in oppositional relationships among surfers and are manifested by categories of accusation or identity (in São Paulo's case, local, haole, roots, prego, and playboy). However, this category attribution is contextual and interchangeable because surfers circulate between groups and beaches while searching for waves.

Manifestações agressivas de localismo são preocupações entre surfistas e se tornam conhecidas pela mídia especializada. O objetivo deste trabalho foi investigar este fenômeno a partir de um caso específico por meio de pesquisa de campo conduzida para a etnografia entre surfistas da cidade de São Paulo. Os dados foram obtidos por observação participante e entrevistas abertas. Os resultados mostram que os conflitos geralmente começam com disputas pelas melhores ondas. O surfe institui uma regra geral de acordo com "critérios de prioridade pela onda" baseada no posicionamento espacial. No entanto, esta regra pode ser desobedecida propositalmente, de acordo com a sociabilidade dos surfistas. Diferenças étnicas e de classe baseadas em processos históricos aparecem como relações de oposição reveladas por categorias de acusação ou identidade (no caso de São Paulo: local, haole, roots, prego e playboy). Entretanto, como os surfistas circulam entre grupos e praias a procura de ondas sua atribuição é contextual e intercambiável.

Manifestaciones agresivas de localismo son una preocupación actual entre los surferos y se están convirtiendo en conocida en los medios especializados. El objetivo de este trabajo fue investigar este fenómeno a través de um caso específico y investigación de campo para la etnografía entre surferos de São Paulo. Los datos fueron obtenidos a través de observación participante y entrevistas abiertas. Los resultados muestran que los conflictos generalmente comienzan por disputas de las mejores olas. El surf tiene una regla general de acuerdo a "criterios de prioridad por la ola" baseados en posicionamento técnico. Sin embargo, esta regla universal puede ser desobedecida a propósito dependiendo de la sociabilidad de los surferos. Diferencias étnicas y de clase sobre la base de los procesos históricos aparecem en relaciones de oposición reveladas por categorías de acusación o de identidad (en el caso de São Paulo: local, haole, roots, prego y playboy). Sin embargo, como los surferos circulan entre grupos e playas en busca de las olas su atribución es contextual e intercambiable.

Características antropométricas de los jugadores españoles de voley playa. Comparación por categorías / Anthropometric characteristics of spanish beach volleyball players. Comparison by categories

El objetivo de este estudio fue determinar las características antropométricas del jugador español (hombres y mujeres) de voley playa y comparar el perfil antropométrico de estos deportistas en las diferentes categorías en las que se organiza la competición: Sub-19, Sub-21 y Absoluto. Fueron evaluados 150 jugadores (79 hombres y 71 mujeres) participantes en el Campeonato de España de voley playa celebrado en 2011. La estatura presentó valores que responden, en los hombres, a patrones evolutivos propios de edad y morfotipo (Sub19M: 184,50±6,95 cm; Sub21M: 182,89±7,28 cm; AbsM: 186,93±6,58 cm). Este comportamiento no se repitió entre las mujeres (Sub19F: 169,84±6,46 cm; Sub21F: 173,43±5,98 cm; AbsF: 175,28±6,17 cm). El peso muscular aumentó por cada categoría con diferencias estadísticamente significativas entre AbsM vs. Sub19M (p=0,002), AbsM vs. Sub21M (p=0,001) y Sub21F vs. Sub19F (p=0,02). Los valores de peso corporal y porcentaje graso mostraron diferencias menos relevantes con diferencias estadísticamente significativas entre el grupo Sub21F (p=0,003) y el Sub19F (p=0,009). Los jugadores españoles de voley playa Absolutos, tanto hombres como mujeres, presentan un peso corporal y una estatura inferior a la de los jugadores de alto nivel internacional. El peso muscular y el peso graso muestran en ambos sexos, en valores absolutos, valores crecientes con cada categoría de edad, pero no se confirma esta tendencia cuando el parámetro se expresa en porcentajes respecto al peso corporal. El jugador de voley playa tiende a incrementar el valor de la mesomorfia con el cambio de categoría, tanto en hombres (3,33±1,09; 3,77±1,28; 4,28±1,07) como en mujeres (2,75±1,02; 2,86±1,21; 3,36±0,92).

The objective of this study was to determine the anthropometric characteristics of Spanish beach volleyball players (men and women) and compare their anthropometric profile across competition categories: Under 19, Under 21 and Senior. A total of 150 players (79 men and 71 women) participating in the 2011 Spanish Beach Volleyball Championship were assessed. Height values in male players corresponded to development patterns appropriate to age and morphotype (U19M: 184,50±6,95 cm; U21M: 182±7,28 cm; SenM: 186±6,58 cm). This pattern was not repeated in female players (U19W: 169,84±6,46 cm; U21W: 173,43±5,98 cm; SenW: 175,28±6,17 cm). Muscle weight increased by category, with statistically significant differences between SenM vs. U19M (p=0,002), SenM vs. U21M (p=0,001) and U21W vs. U19W (p=0,02). Body weight and fat percentage values showed less pronounced differences, with statistically significant differences between groups U21W (p=0,003) and U19W (p=0,009). Spanish Senior beach volleyball players, both men and women, have lower values for body weight and height than international players. In absolute values, muscle weight and fat weight in both sexes showed increasing values by age category, but this pattern was not confirmed when the parameter was expressed in percentages in relation to body weight. Beach volleyball players tend to increase their mesomorphy value with changes in category, both for men (3,33±1,09; 3,77±1,28; 4,28±1,07) and women (2,75±1,02; 2,86±1,21; 3,36±0,92).

Fish assemblages along a morphodynamic continuum on three tropical beaches

A comparative study involving three mesotidal beaches from reflective to estuarine states was conducted between October 2010 and September 2011 in the estuary of Mamanguape River, northeastern Brazil. The aim was to test for differences in fish assemblages along a morphodynamic continuum, particularly the effects of wave action. In total, 3,732 fish from 71 species were examined; Rhinosardinia bahiensis and Atherinella brasiliensis dominated the estuarine beach, whereas Trachinotus carolinus dominated the reflective beach. Fish assemblages were structured by spatial differences among the sites, and overall abundance, richness and biomass demonstrated a clear increasing trend from the reflective to the estuarine beaches, indicating a primary influence of wave exposure in the measured parameters. The Mamanguape River estuary plays a crucial ecological role as a nursery for several species that depend on its resources and have adapted to the high variability of its physical and chemical factors and the diversity of its habitats. Um estudo comparativo envolvendo três praias mesotidais do estado refletivo para o estuarino foi realizado entre outubro de 2010 e setembro de 2011 no estuário do rio Mamanguape, Nordeste do Brasil. O objetivo foi testar as diferenças nas assembleias de peixes ao longo de um continuum morfodinâmico, particularmente os efeitos da ação das ondas. No total, 3.732 peixes de 71 espécies foram examinados; Rhinosardinia bahiensis e Atherinella brasiliensis dominaram a praia estuarina, enquanto Trachinotus carolinus dominou a praia refletiva. As assembleias de peixes foram estruturadas por diferenças espaciais entre locais de amostragem, e a abundância total, riqueza e biomassa demonstraram uma clara tendência crescente da praia refletiva à praia estuarina, indicando uma influência primária de exposição às ondas nos parâmetros medidos. O estuário do rio Mamanguape desempenha um papel ecológico importante como um berçário para várias espécies que dependem de seus recursos e se adaptaram à alta variabilidade de seus fatores físico-químicos e da diversidade de seus habitats.

Variación espacio-temporal de la meiofauna submareal en una playa arenosa nororiental de Venezuela / Spatio-temporal variation of subtidal meiofauna in a sandy beach from Northeastern Venezuela

Meiofauna organisms that play an important role in the trophic ecology of soft bottom benthos, have short life cycles and they respond quickly to disturbance and pollution. The present study shows the spatio-temporal variation of subtidal meiofauna (metazoans passing a 500μm sieve but retained on meshes of 40-63μm) in four shallow subtidal stations. Samples were taken in the sandy beach of San Luis, in the Northeastern coast of Venezuela, from October 2005 until September 2006. For this, three replicate sediment core samples (4.91cm²), were collected monthly to a depth of 10cm into the sediment, and preserved in 6% formalin stained with rose Bengal. Specimens of 14 meiofaunal groups (Foraminifera excluded) were collected, being the nematodes, ostracods and harpacticoid copepods the most abundant. Monthly density was comprised between 64 and 503ind./10cm², and mean density of stations between 173 and 449ind./10cm². There is a trend of low densities from October to February (end of the rainy season until the middle of the dry season). The San Luis beach control of the meiofaunal community is shared by climatic conditions and by the biology of the species found. The meiofauna mean density in San Luis beach (263ind./10cm²) was low when compared to other studies in tropical areas.

La meiofauna incluye metazoos y foraminíferos bénticos que pasan a través de un tamiz de 500mm y son retenidos en malla de 40-63μm. Se estudió la variación espacial y temporal de la meiofauna en cuatro estaciones submareales a 1m de profundidad, de una playa arenosa situada en la costa nororiental de Venezuela. Mensualmente, durante un año, en cada estación, con un nucleador de 2.5cm de diámetro interno, se tomaron tres réplicas de sedimento hasta 10cm de profundidad y se pasaron a través de un tamiz de 0.063mm de abertura de malla. Se identificaron 14 grupos meiofaunales, excluidos los foraminíferos, siendo los nemátodos, ostrácodos y copépodos harpacticoides los más abundantes. La densidad mensual estuvo comprendida entre 64 y 503ind./10cm², y la densidad media en las estaciones entre 173 y 449ind./10cm². La densidad de la meiofauna en la playa San Luis es baja en comparación con otros estudios realizados en zonas tropicales. En esta playa el control de las comunidades meiofaunísticas es compartido por las condiciones climáticas y la biología de las especies.

Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches? / A colonização dos sedimentos de praias tropicais por nematódeos na presença de Scolelepis é similar ao processo de colonização que ocorre em praias arenosas temperadas?

The role of a dominant macrobenthic polychaete, Scolelepis squamata, in the colonisation of defaunated tropical sediments by sandy-beach nematodes was investigated and compared with a previous colonisation experiment carried out on a temperate sandy beach. Experimental cylinders, equipped with lateral windows allowing infaunal colonisation, were filled with defaunated sediment containing two treatments, with and without S. squamata. These cylinders were inserted into microcosms containing sediment with indigenous meiofauna collected from the field. The treatments were incubated in the laboratory at ambient temperature and salinity for 7, 14 and 21 days. The nematode assemblages in both treatments did not differ in composition between treatments and from the natural assemblages, suggesting that all the species were equally able to colonise the experimental cores. The presence of the polychaete did not affect the development of the nematode community composition, in contrast to the results from a previous temperate-beach experiment. However, our results did not indicate whether the difference in results was caused by the different behaviour of the polychaete specimens, or by the different composition and response of the present nematode community.

Esse estudo avaliou a influência da espécie Scolelepis squamata (Polychaeta) no processo de colonização de sedimentos defaunados obtidos em uma praia arenosa tropical, além de comparar esses resultados com um estudo similar realizado em uma praia temperada. Sedimentos, previamente defaunados, foram colocados em amostradores com aberturas laterais, que permitiram a colonização da meiofauna. Foram definidos dois tratamentos, um com a presença e outro com a ausência da espécie S. squamata, além do controle. Os amostradores desses tratamentos foram alocados em unidades experimentais do tipo microcosmo, as quais continham sedimento com a meiofauna residente. Os tratamentos foram incubados em laboratório por 7, 14 e 21 dias, com condições controladas de temperatura e salinidade. Os nematódeos não apresentaram diferenças significativas em termos de composição entre os tratamentos e nem em relação ao controle, sugerindo que todas as espécies desse grupo foram, igualmente, capazes de colonizar as unidades experimentais. Esses resultados indicaram que a presença do poliqueto não afetou a estrutura da comunidade de nematódeos, o que representou um resultado contrário ao obtido para a praia temperada. No entanto, não se pode concluir se essas diferenças entre as praias estariam relacionadas ao comportamento diferencial de S. squamata ou pela presença de comunidades de nematódeos distintas nas praias.

Conocimientos, actitudes, prácticas de fotoprotección de bañistas que acuden a playas de Lima / Knowledge, attitudes and practices of photo protection of swimmers in three beaches of Lima

Objetivo. Determinar los conocimientos, actitudes y prácticas acerca de fotoprotección de bañistas que acuden a playas de Lima y Callao durante enero de 2012.Material y Métodos. Estudio transversal realizado en las playas Agua Dulce (Chorrillos), Playa Sur (San Bartolo) y La Punta (Callao) los días domingos del mes de enero de 2012. Se incluyó en el estudio a bañistas que se encontraban tomando un día de playa entre las 10 a.m. y 12 m., de cualquier sexo y de edad mayor o igual a 10 años. Se realizó una encuesta en la que se abordó aspectos relacionados a conocimientos, actitudes, prácticas de fotoprotección en la práctica diaria y en el día de playa. Los datos obtenidos fueron registrados en un instrumento de recolección de datos. resultados. Participaron del estudio 317 bañistas. Al evaluarse los conocimientos de los bañistas acerca de daños a largo plazo causados por la exposición solar, el cáncer de piel fue el identificado con mayor frecuencia (88,3%); 42,3% tenían una actitud positiva hacia el bronceado. Ante un día cotidiano de sol, la práctica más frecuente era la búsqueda de sombra (85,8%), mientras que el uso de otras medidas es limitado. Se observó un predominio significativo del uso de lentes oscuros en bañistas con instrucción superior (p < 0,001) y del bloqueador solar en mujeres (p = 0,012). En el día de playa, 70,7% de los bañistas había usado bloqueador solar; 58,7%, sombrilla y 57,7% sombrero o gorra. Existió predominio significativo en la aplicación de protector solar (p = 0,009) como en el uso de sombrilla (p = 0,027) en mujeres. Conclusión. A pesar de los conocimientos de los bañistas, un porcentaje importante no aplica las medidas que conoce en la práctica diaria y en el día de playa.

Objective. To determine the knowledge, attitudes and of photo protection of swimmers in beaches of Lima and Callao in January 2012. Material and MethOds. Cross-sectional study realized in three beachs: Agua Dulce (Chorrillos), San Bartolo (Sur) and La Punta (Callao) on Sundays of January 2012. The study enrolled swimmers between 10 am and 12 m, of both genre and with an age equal or greater than 10 years. An interview was realized about knowledge, attitudes, and practices of photo protection diary and at the beach. Data were recorded on a data collection sheet.cOnclusiOn. Despite their knowledge of swimmers, a high percent apply any measures that know in the diary practice and beach day. On average day, the usual measure was the search of shadow (85,5%), the use of others measures were limited. The use of sunglasses by swimmers with high instruction (p < 0,001) and the use of sunscreens by women (p < 012) had significant predominance. In the day at the beach, 70,7% of swimmers had used sunscreens, 58,7% used umbrellas and 57,7% hat or cap. There was a significant predominance in the application of sunscreen (p = 0,009) also for the use of umbrella) p = 0,027%) in women. results. 317 swimmers were and their knowledge about the long term damages caused by exposure to sunlight was evaluated. Skin cancer was identified with the highest frequency (88,3%) and there was a limited knowledge about others damages; 42,3% had a positive attitude towards tan.

Prevalência de lesões labiais em trabalhadores de praia e fatores associados / Prevalence and factors associated with orolabial lesions in beach workers / Prevalencia de lesiones labiales en trabajadores de playa y factores asociados

OBJETIVO: Analisar a prevalência de lesões labiais decorrentes da exposição solar e potenciais associações em trabalhadores de praia. MÉTODOS: Estudo transversal com 362 trabalhadores de cinco praias urbanas em Natal, RN, de agosto a dezembro de 2010. Os participantes responderam um questionário validado com dados pessoais, de ocupação e de saúde e passaram por exame clínico dos lábios feito por pesquisadores calibrados. As possíveis associações das variáveis sociodemográficas, ocupacionais e de saúde geral com a presença de lesões labiais foram avaliadas pelo teste do qui-quadrado para um nível de significância de 5%. A análise multivariada foi feita utilizando-se a regressão robusta de Poisson. RESULTADOS: Dos trabalhadores examinados, 27,1% apresentavam lesões labiais. Desses, 76,8% eram do sexo masculino; 61,6% tinham pele morena ou negra; 94,5% trabalhavam informalmente; e 85,4% trabalhavam expostos ao sol. A maioria (81,1%) relatou uso de algum tipo de fotoproteção: protetor solar (38,7%); protetor labial (15,3%); boné/chapéu (72,4%). Aproximadamente 28% eram fumantes e 48% consumiam álcool regularmente. A fotoproteção com uso de boné/chapéu foi associada à presença de lesões labiais decorrentes da exposição solar. CONCLUSÕES: Observou-se alta prevalência de lesões labiais nos indivíduos expostos ao sol, a qual foi associada ao uso de boné/chapéu como forma de fotoproteção.

OBJECTIVE: To assess the prevalence and factors associated with orolabial lesions caused by sun exposure in beach workers. METHODS: Cross-sectional study with 362 beach workers from five urban beaches in the city of Natal, northeastern Brazil, from August to December 2010. All subjects completed a validated questionnaire to collect personal, occupational, and health-related information and underwent an orolabial clinical examination by trained examiners. Potential associations between sociodemographic, occupational, and health-related variables and the presence of orolabial lesions were assessed using the chi-square test at a 5% significance level. The multivariate analysis was performed using Poisson regression. RESULTS: Of the 362 workers examined, 27.1% had orolabial lesions. Of these, 76.8% were males, 61.6% dark or black skinned, 94.5% informal workers, and 85.4% reported sun exposure. Most (81.1%) reported using sun protection methods including sunscreen (38.7%), lip balm (15.3%), and cap/hat (72.4%). Twenty-eight percent reported smoking and 48% regular drinking. Sun protection with cap/hat was associated with orolabial lesions caused by sun exposure. CONCLUSIONS: There was found a high prevalence of orolabial lesions in workers exposed to sunlight that was associated with the use of a cap/hat as a sun protection method.

OBJETIVO: Analizar la prevalencia de lesiones labiales productos de la exposición solar y potenciales asociaciones en trabajadores de playa. MÉTODOS: Estudio transversal con 362 trabajadores de cinco playas urbanas en Natal, RN, Brasil, de agosto a diciembre de 2010. Los participantes respondieron un cuestionario validado con datos personales, de ocupación y de salud y se evaluaron a través de exámenes clínicos realizados por investigadores calibrados. Las posibles asociaciones de las variables sociodemográficas, ocupacionales y de salud general con la presencia de lesiones labiales se evaluaron por medio de la prueba de Chi-cuadrado para un nivel de significancia de 5%. El análisis multivariado fue realizado utilizándose la regresión robusta de Poisson. RESULTADOS: De los trabajadores examinados, 27,1% presentaban lesiones labiales. De estos, 76,8% eran del sexo masculino; 61,6% tenían piel morena o negra; 94,5% trabajaban informalmente y 85,4%, expuestos al sol. La mayoría (81,1%) relató uso de algún tipo de fotoprotección: protector solar (38,7%); protector labial (15,3%); gorra/sombrero (72,4%). Aproximadamente 28% eran fumadores y 48% consumían alcohol regularmente. La fotoprotección con uso de gorra/sombrero fue asociada a la presencia de lesiones labiales productos de la exposición solar. CONCLUSIONES: Se observó alta prevalencia de lesiones labiales en los individuos expuestos al sol y esta se asoció al uso de gorra/sombrero como forma de fotoprotección.

Observation of initial clinical manifestations and repercussions from the treatment of 314 human injuries caused by black sea urchins (Echinometra lucunter) on the southeastern Brazilian coast / Observação das manifestações clínicas iniciais e sua influência no tratamento de 314 acidentes causados por ouriços-do-mar pretos (Echinometra lucunter) na região sudeste do Brasil

INTRODUCTION: Injuries caused by sea urchins are the most common caused by marine animals in humans in Brazil, with the black sea urchin (Echinometra lucunter) causing the most injuries to bathers. METHODS: This study observed 314 human wounds with emphasis on the early observation of clinical signs and symptoms and their implications on the recommended treatment. RESULTS: All the injuries were caused by black sea urchins and were observed in bathers. The lesions and the pain were associated with penetration of the spines; there was no early inflammation or pain without pressure on the wounded places. Complications arising from this kind on injury, including infections and foreign body granulomas, are associated with the permanence of the spines in the wounds. CONCLUSIONS: The study confirmed that this kind of injury is the most common accident caused by aquatic animals in Brazil. The main therapeutical recommendation is early removal of the spines to prevent late complications, such as infections and the formation of foreign body granulomas.

INTRODUÇÃO: Os acidentes causados por ouriços-do-mar são as ocorrências por animais marinhos mais comuns no país. O ouriço-do-mar preto (Echinometra lucunter) é a espécie que mais causa ferimentos em banhistas. MÉTODOS: Este trabalho registrou e estudou 314 agravos com ênfase nas manifestações clínicas iniciais observadas e suas implicações na terapêutica recomendada. RESULTADOS: Todos os acidentes foram causados pelo ouriço-do-mar preto e aconteceram em banhistas. As lesões e a dor foram associadas ao trauma causado pela penetração das espículas (não ocorreu inflamação ou dor imediata sem pressão sobre os pontos comprometidos). As complicações deste tipo de acidente, incluindo infecções e granulomas de corpo estranho, estão associadas com a permanência das espículas nos ferimentos. CONCLUSÕES: Foi confirmado o fato do acidente causado por esta espécie ser o mais comum no Brasil e apresentar caráter traumático, sendo a principal recomendação a retirada precoce dos espinhos para prevenção de complicações tardias como as infecções e formação de granulomas de corpo estranho.