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An Economic Analysis to Sustainable Fisheries Management OceanDocs
Lokina, R.B..
The coastal zone is a dynamic area surrounding the interface between land and sea. The coastal area and its resources offer great benefits and opportunities for human use. Most coastal activities in Tanzania rely on the natural resources that the coast offers (fishing, forestry, agriculture, tourism, mining, salt production mariculture etc). Therefore the condition of the coastal ecosystem and social well being are closely linked. The challenge is to maintain and improve the resources base on which those activities are dependent, while developing new economic opportunities in a way that benefits the people of the coast and the nation as a whole. A major constraint is the inadequate institution and legal framework for coastal management. Economics is about...
Tipo: Conference Material Palavras-chave: Maximum economic yield; Open access equilibrium; Efficiency; Artisan fisheries; Maximum sustainable yield; Bioeconomic model; Sustainable fishing; Sustainable management.
Ano: 2000 URL: http://hdl.handle.net/1834/746
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Emergence of a new predator in the North Sea: evaluation of potential trophic impacts focused on hake, saithe, and Norway pout ArchiMer
Cormon, Xochitl; Kempf, Alexander; Vermard, Youen; Vinther, Morten; Marchal, Paul.
During the last 15 years, northern European hake (Merluccius merluccius) has increased in abundance, and its spatial distribution has expanded in the North Sea region in correlation with temperature. In a context of global warming, this spatial shift could impact local trophic interactions: direct impacts may affect forage fish through modified predator–prey interactions, and indirect impacts may materialize through competition with other resident predators. For instance, North Sea saithe (Pollachius virens) spatial overlap with hake has increased while saithe spawning-stock biomass has decreased recently notwithstanding a sustainable exploitation. In this context, we investigated the range of potential impacts resulting from most recent hake emergence in...
Tipo: Text Palavras-chave: Hake; Interspecific competition; Maximum sustainable yield; Multispecies stock assessment; Norway pout; Predator-prey interactions; Saithe; Simple foodweb; SMS.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00327/43794/45917.pdf
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Potential economic impacts of achieving good environmental status in Black Sea fisheries Ecology and Society
Goulding, Ian C; Megapesca Lda, Portugal; ian@megapesca.com; Stobberup, Kim A; Megapesca Lda, Portugal; megapesca@mail.telepac.pt.
The Marine Strategy Framework Directive (MSFD) mandates that European Union (EU) member states achieve Good Environmental Status (GEnS) based on an ecosystem-based approach to management. For commercial fisheries, the primary target under the MSFD is one of maximum sustainable yield. Of Black Sea riparian nations, only Romania and Bulgaria are EU member states. Focusing at the supranational level, we review institutions and instruments relevant to management of the Black Sea. The economic values of current fish catches are assessed, and the results of a recent analytical assessment of fish stocks are used to estimate potential future values based on maximum sustainable yields. In the Black Sea region, despite long-standing attempts to improve fisheries...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Black Sea; Economic impacts; Good Environmental Status; Marine Strategy Framework Directive; Maximum sustainable yield; Small pelagic fish.
Ano: 2014
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