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1.
Acta sci., Anim. sci ; 45: e57700, 2023. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1396714

Resumo

The present study aimed to correlate the influence of water quality, cultivation time, area, and density of ponds on the zootechnical performance of shrimp Litopenaeus vannameiin oligohaline waters. It was demonstrated that, under the conditions of this research, better control of temperature, pH and water alkalinity can be employed. Ammonia levels were within the normal range and correlated positively with the growth rate (ρ= 0.69859) and production (ρ= 0.66362) of the ponds. There was also a positive correlation between cultivation time and pond density with shrimp weight (ρ= 0.75305 and 0.68933) and pond productivity (ρ= 0.74763 and 0.79367, respectively). Negative correlations were observed between: I) pH with shrimp survival (ρ= -0.73238) and pondproduction (ρ= -0.68696); II) alkalinity and pond production (ρ= -0.66162). The results show that the cultivation of shrimp L.vannameiin oligohaline waters is viable and there is potential for increased productivity associated with better hydrologicalmonitoring and use of higher density and cultivation time by some producers.(AU)


Assuntos
Animais , Qualidade da Água , Penaeidae/crescimento & desenvolvimento , Recursos Hídricos , Aquicultura
2.
Acta sci., Biol. sci ; 42: e47722, fev. 2020. map, tab, graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1460915

Resumo

Local inhabitants retain a vast knowledge about the bird richness surrounding them, as well as many of their ethological and ecological aspects, and can identify the importance of those birds to the maintenance of ecosystem integrity. The present study sought to document the traditional knowledge retained by members of the Labino community concerning the avifauna of the Delta do Rio Parnaíba Environmental Protection Area (APA), Piauí State, Brazil. We interviewed 76 male (51% of the sample) and 74 female (49%) residents. The interviewees indicated the occurrence of 97 bird species belonging to 21 orders and 40 families. Men could identify more bird species than women. Older individuals recognize more bird species than younger members of the community. Individuals with less schooling demonstrated greater knowledge of species richness than those with more formal educations. A very significant percentage (45%, n = 68) of the interviewees reported consuming native birds, principally Aramides cajaneus, Columbina squammata, and Zenaida auriculata. A total of 48 species were perceived as having their populations reduced in recent years, principally Mimus gilvus, Icterus jamacaii, Aramides cajaneus, Turdus rufiventris, and Cacicus cela. The residents of the Labino community were therefore found to have a detailed knowledge of the local avifauna and perceived impacts caused mainly by hunting in the Parnaiba River Delta region.


Assuntos
Animais , Aves/crescimento & desenvolvimento , Conservação dos Recursos Naturais , Etologia/classificação , Etologia/tendências
3.
Acta sci., Biol. sci ; 42fev. 2020.
Artigo em Inglês | LILACS-Express | LILACS, VETINDEX | ID: biblio-1460936

Resumo

Local inhabitants retain a vast knowledge about the bird richness surrounding them, as well as many of their ethological and ecological aspects, and can identify the importance of those birds to the maintenance of ecosystem integrity. The present study sought to document the traditional knowledge retained by members of the Labino community concerning the avifauna of the Delta do Rio Parnaíba Environmental Protection Area (APA), Piauí State, Brazil. We interviewed 76 male (51% of the sample) and 74 female (49%) residents. The interviewees indicated the occurrence of 97 bird species belonging to 21 orders and 40 families. Men could identify more bird species than women. Older individuals recognize more bird species than younger members of the community. Individuals with less schooling demonstrated greater knowledge of species richness than those with more formal educations. A very significant percentage (45%, n = 68) of the interviewees reported consuming native birds, principally Aramides cajaneus, Columbina squammata, and Zenaida auriculata. A total of 48 species were perceived as having their populations reduced in recent years, principally Mimus gilvus, Icterus jamacaii, Aramides cajaneus, Turdus rufiventris, and Cacicus cela. The residents of the Labino community were therefore found to have a detailed knowledge of the local avifauna and perceived impacts caused mainly by hu

4.
Acta Sci. Biol. Sci. ; 42: e47722, fev. 2020. mapas, tab, graf
Artigo em Inglês | VETINDEX | ID: vti-745730

Resumo

Local inhabitants retain a vast knowledge about the bird richness surrounding them, as well as many of their ethological and ecological aspects, and can identify the importance of those birds to the maintenance of ecosystem integrity. The present study sought to document the traditional knowledge retained by members of the Labino community concerning the avifauna of the Delta do Rio Parnaíba Environmental Protection Area (APA), Piauí State, Brazil. We interviewed 76 male (51% of the sample) and 74 female (49%) residents. The interviewees indicated the occurrence of 97 bird species belonging to 21 orders and 40 families. Men could identify more bird species than women. Older individuals recognize more bird species than younger members of the community. Individuals with less schooling demonstrated greater knowledge of species richness than those with more formal educations. A very significant percentage (45%, n = 68) of the interviewees reported consuming native birds, principally Aramides cajaneus, Columbina squammata, and Zenaida auriculata. A total of 48 species were perceived as having their populations reduced in recent years, principally Mimus gilvus, Icterus jamacaii, Aramides cajaneus, Turdus rufiventris, and Cacicus cela. The residents of the Labino community were therefore found to have a detailed knowledge of the local avifauna and perceived impacts caused mainly by hunting in the Parnaiba River Delta region.(AU)


Assuntos
Animais , Aves/crescimento & desenvolvimento , Conservação dos Recursos Naturais , Etologia/classificação , Etologia/tendências
5.
Artigo em Inglês | VETINDEX | ID: vti-765754

Resumo

Local inhabitants retain a vast knowledge about the bird richness surrounding them, as well as many of their ethological and ecological aspects, and can identify the importance of those birds to the maintenance of ecosystem integrity. The present study sought to document the traditional knowledge retained by members of the Labino community concerning the avifauna of the Delta do Rio Parnaíba Environmental Protection Area (APA), Piauí State, Brazil. We interviewed 76 male (51% of the sample) and 74 female (49%) residents. The interviewees indicated the occurrence of 97 bird species belonging to 21 orders and 40 families. Men could identify more bird species than women. Older individuals recognize more bird species than younger members of the community. Individuals with less schooling demonstrated greater knowledge of species richness than those with more formal educations. A very significant percentage (45%, n = 68) of the interviewees reported consuming native birds, principally Aramides cajaneus, Columbina squammata, and Zenaida auriculata. A total of 48 species were perceived as having their populations reduced in recent years, principally Mimus gilvus, Icterus jamacaii, Aramides cajaneus, Turdus rufiventris, and Cacicus cela. The residents of the Labino community were therefore found to have a detailed knowledge of the local avifauna and perceived impacts caused mainly by hu

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