Sabiia Seb
        Busca avançada

Botão Atualizar

Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Ecological indicators to capture the effects of fishing on biodiversity and conservation status of marine ecosystems
Autores:  Coll, M.
Shannon, L. J.
Kleisner, K. M.
Juan-jorda, M. J.
Bundy, A.
Akoglu, A. G.
Banaru, Daniela
Boldt, J. L.
Borges, M. F.
Cook, A.
Diallo, I.
Fu, C.
Fox, C.
Gascuel, D.
Gurney, L. J.
Hattab, T.
Heymans, J. J.
Jouffre, D.
Knight, B. R.
Kucukavsar, S.
Large, S. I.
Lynam, C.
Machias, A.
Marshall, K. N.
Masski, H.
Ojaveer, H.
Piroddi, C.
Tam, J.
Thiao, D.
Thiaw, M.
Torres, M. A.
Travers-trolet, Morgane
Tsagarakis, K.
Tuck, I.
Van Der Meeren, G. I.
Yemane, D.
Zador, S. G.
Shin, Y. -j.
Data:  2016-01
Ano:  2016
Palavras-chave:  Ecological indicators
Marine ecosystems
Fishing impacts
Resumo:  IndiSeas (“Indicators for the Seas”) is a collaborative international working group that was established in 2005 to evaluate the status of exploited marine ecosystems using a suite of indicators in a comparative framework. An initial shortlist of seven ecological indicators was selected to quantify the effects of fishing on the broader ecosystem using several criteria (i.e., ecological meaning, sensitivity to fishing, data availability, management objectives and public awareness). The suite comprised: (i) the inverse coefficient of variation of total biomass of surveyed species, (ii) mean fish length in the surveyed community, (iii) mean maximum life span of surveyed fish species, (iv) proportion of predatory fish in the surveyed community, (v) proportion of under and moderately exploited stocks, (vi) total biomass of surveyed species, and (vii) mean trophic level of the landed catch. In line with the Nagoya Strategic Plan of the Convention on Biological Diversity (2011–2020), we extended this suite to emphasize the broader biodiversity and conservation risks in exploited marine ecosystems. We selected a subset of indicators from a list of empirically based candidate biodiversity indicators initially established based on ecological significance to complement the original IndiSeas indicators. The additional selected indicators were: (viii) mean intrinsic vulnerability index of the fish landed catch, (ix) proportion of non-declining exploited species in the surveyed community, (x) catch-based marine trophic index, and (xi) mean trophic level of the surveyed community. Despite the lack of data in some ecosystems, we also selected (xii) mean trophic level of the modelled community, and (xiii) proportion of discards in the fishery as extra indicators. These additional indicators were examined, along with the initial set of IndiSeas ecological indicators, to evaluate whether adding new biodiversity indicators provided useful additional information to refine our understanding of the status evaluation of 29 exploited marine ecosystems. We used state and trend analyses, and we performed correlation, redundancy and multivariate tests. Existing developments in ecosystem-based fisheries management have largely focused on exploited species. Our study, using mostly fisheries independent survey-based indicators, highlights that biodiversity and conservation-based indicators are complementary to ecological indicators of fishing pressure. Thus, they should be used to provide additional information to evaluate the overall impact of fishing on exploited marine ecosystems.
Tipo:  Text
Idioma:  Inglês

Editor:  Elsevier Science Bv
Relação:  info:eu-repo/grantAgreement/EC/FP7/212085/EU//MEECE
Formato:  application/pdf
Fonte:  Ecological Indicators (1470-160X) (Elsevier Science Bv), 2016-01 , Vol. 60 , P. 947-962
Direitos:  2015 Elsevier Ltd. All rights reserved.


restricted use

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC:

Valid HTML 4.01 Transitional