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Muller-karger, Frank E.; Miloslavich, Patricia; Bax, Nicholas J.; Simmons, Samantha; Costello, Mark J.; Pinto, Isabel Sousa; Canonico, Gabrielle; Turner, Woody; Gill, Michael; Montes, Enrique; Best, Benjamin D.; Pearlman, Jay; Halpin, Patrick; Dunn, Daniel; Benson, Abigail; Martin, Corinne S.; Weatherdon, Lauren V.; Appeltans, Ward; Provoost, Pieter; Klein, Eduardo; Kelble, Christopher R.; Miller, Robert J.; Chavez, Francisco P.; Iken, Katrin; Chiba, Sanae; Obura, David; Navarro, Laetitia M.; Pereira, Henrique M.; Allain, Valerie; Batten, Sonia; Benedetti-checchi, Lisandro; Duffy, J. Emmett; Kudela, Raphael M.; Rebelo, Lisa-maria; Shin, Yunne-jai; Geller, Gary. |
Measurements of the status and trends of key indicators for the ocean and marine life are required to inform policy and management in the context of growing human uses of marine resources, coastal development, and climate change. Two synergistic efforts identify specific priority variables for monitoring: Essential Ocean Variables (EOVs) through the Global Ocean Observing System (GOOS), and Essential Biodiversity Variables (EBVs) from the Group on Earth Observations Biodiversity Observation Network (GEO BON) (see Data Sheet 1 in Supplementary Materials for a glossary of acronyms). Both systems support reporting against internationally agreed conventions and treaties. GOOS, established under the auspices of the Intergovernmental Oceanographic Commission... |
Tipo: Text |
Palavras-chave: Essential ocean variables (EOV); Essential biodiversity variables (EBV); Marine biodiversity observation network (MBON); Global ocean observing system(GOOS); Ocean biogeographic information system(OBIS); Marine global earth observatory (MarineGEO); Integrated marine biosphere research (IMBeR). |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00626/73783/75103.pdf |
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Garcia, Serge; Kolding, Jeppe; Rice, Jake; Rochet, Marie-joelle; Zhou, Shijie; Arimoto, Takafumi; Borges, Lisa; Bundy, Alida; Dunn, Daniel; Graham, Norman; Hall, Martin; Heino, Mikko; Law, Richard; Makino, Mitsutaku; Rijnsdorp, Adriaan D.; Simard, François; Smith, Anthony D.m.; Symons, Despina. |
The conventional selectivity paradigm is briefly reviewed and its performance examined from an ecosystem perspective. It is stressed that the overall (cumulative) selectivity of the harvest process in an ecosystem is the result of nested selection by fishers and fisheries of: (i) habitats; (ii) species assemblages; (iii) populations and (iv) individuals. A range of ecosystem models predict a strong impact of concentrated fishing (selective fishing) on the ecosystem structure stability, resilience and productivity. There seem to be advantages (in both yield and maintenance of ecosystem structure and functioning) to distribute fishing pressure broadly across available species and ecosystem compartments. Balanced harvesting was therefore defined by the... |
Tipo: Text |
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Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00026/13697/10775.pdf |
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