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1.
Environ Monit Assess ; 136(1-3): 245-56, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17616828

RESUMO

In the United Kingdom, the use of TBT-based anti-fouling paints on small vessels was banned in 1987, and a biological study of the Crouch Estuary, a yachting centre on the south-eastern coast of the UK, was conducted in order to determine the ecological improvements resulting from this legislation. We present the changes in the macro-infaunal communities along the estuary in relation to declining TBT concentrations between 1987 and 2005. Although the major changes in response to the ban were observed within the first 3 years (primarily an increase in the number of crustacean taxa and a shift in community structure), with changes still apparent between three and 5 years, the temporal duration of this study allowed the rapidity of the response to be truly determined.


Assuntos
Ecossistema , Sedimentos Geológicos/química , Água do Mar/química , Compostos de Trialquitina , Poluentes Químicos da Água , Animais , Monitoramento Ambiental , Feminino , Humanos , Masculino , Tamanho da Partícula , Análise de Componente Principal , Compostos de Trialquitina/análise , Compostos de Trialquitina/normas , Reino Unido , Poluentes Químicos da Água/análise , Poluentes Químicos da Água/normas
2.
Mar Pollut Bull ; 52(4): 415-26, 2006 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-16256147

RESUMO

This study provides a holistic perspective on the ecological effects of dredged material disposal, both intertidally and subtidally. A number of numerical techniques (univariate, distributional, multivariate and meta-analysis) were used to assess impacts at 18 different disposal sites. The analyses revealed that ecological effects associated with dredged material disposal were dependent on the numerical techniques used, and that impacts were disposal-site specific. Disposal-site communities were generally faunistically impoverished to varying degrees, and impacts following intertidal placement were comparable to those of subtidal placement. We conclude that any assessment of the consequences of dredged material disposal to the coastal environment must take account of site-specific variation in prevailing hydrographic regimes and in ecological status, along with information on the disposal activity itself (mode, timing, quantity, frequency and type of material). As would be expected, variability in the latter presents a significant challenge in attempts to generalise about environmental and ecological impacts.


Assuntos
Meio Ambiente , Monitoramento Ambiental , Sedimentos Geológicos/análise , Invertebrados/crescimento & desenvolvimento , Animais , Biodiversidade , Tomada de Decisões , Inglaterra , Mercúrio/análise , Metanálise como Assunto , Análise Multivariada , Oceanos e Mares , Tamanho da Partícula , Análise de Regressão , Estatística como Assunto , País de Gales , Poluentes Químicos da Água/análise
3.
Mar Pollut Bull ; 50(12): 1569-84, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16083914

RESUMO

This paper provides a preliminary evaluation of the suitability of OSPAR Ecological Quality objectives for eutrophication for coastal and offshore waters of England and Wales on the basis of ICES criteria. In principle, EcoQOs are easy to understand, but responses to nutrient enrichment are complex. Few studies provide unequivocal evidence of links between inputs and response. Monitoring is generally feasible and in place, but needs to be improved. The best EcoQO is winter nutrient concentrations. Chlorophyll concentrations are a good indicator in environments susceptible to nutrient enrichment. The EcoQO for zoobenthos/fish kills potentially meets all criteria for a good indicator; EcoQOs for phytoplankton indicator species, oxygen concentrations and zoobenthos changes do not. Greater emphasis needs to be placed on seasonal effects of nutrient inputs and phytoplankton response, natural susceptibility of different water bodies, differences between coastal and offshore environments, and developing longer time series of data.


Assuntos
Biomarcadores , Monitoramento Ambiental/normas , Eutrofização , Biodiversidade , Clorofila/análise , Clorofila A , Ecossistema , Inglaterra , Oceanos e Mares , Oxigênio/análise , Fitoplâncton/química , Fitoplâncton/crescimento & desenvolvimento , Água do Mar/química , País de Gales
4.
Mar Pollut Bull ; 42(2): 137-44, 2001 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11381884

RESUMO

In the United Kingdom, the use of TBT-based anti-fouling paints on small vessels was banned in 1987, and a biological study of the Crouch Estuary, a yachting centre on the south-eastern English coastline, was initiated in order to monitor any associated changes. The macrobenthic infauna and epifauna were sampled between 1987 and 1992, and again in 1997. Epifaunal sampling in 1997 showed that an earlier increase in sedentary taxa had been sustained, and also that a large population of the native oyster Ostrea edulis had become established upstream. Multivariate analysis revealed continuance of a trend towards directional change in community composition at inner estuary stations, where TBT concentrations were historically much higher. These observations, along with evidence of established populations of a range of ascidian species in the inner estuary after an initial marked increase in densities, provide circumstantial evidence of an underlying improvement in environmental conditions following the TBT ban in 1987.


Assuntos
Ostreidae , Pintura/análise , Poluentes Químicos da Água/análise , Poluição da Água/prevenção & controle , Animais , Inglaterra , Água do Mar
5.
Semin Nurse Manag ; 8(3): 136-42, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-12029748

RESUMO

Family-centered care means, in the broadest sense, welcoming the family as partners in the care of the child. Family-centered care challenges us to create a new vision of a hospital environment that works in a very different way and that can actually improve clinical outcomes. This report describes one hospital's journey into family-centered care--its accomplishments and its challenges. It should be noted that, although this report describes family-centered care in a children's hospital, the philosophy beautifully adapts to an adult facility.


Assuntos
Cuidadores , Criança Hospitalizada/psicologia , Papel do Profissional de Enfermagem , Poder Familiar/psicologia , Assistência Centrada no Paciente , Adulto , Administração de Caso/tendências , Criança , Humanos
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