نتایج جستجو برای: reservoir fisheries
تعداد نتایج: 57192 فیلتر نتایج به سال:
This contribution briefly recalls the declining status of global fisheries and marine ecosystems, with emphasis on the Central West Atlantic and the Caribbean. It then present a methodology for studying the potential effect of global warming on marine biodiversity and fisheries, whose results lead to the conclusion that fisheries catch potentials will shift toward higher latitudes, and lead to ...
Citation: Tsagarakis K, Carbonell A, Brčić J, Bellido JM, Carbonara P, Casciaro L, Edridge A, García T, González M, Krstulović Šifner S, Machias A, Notti E, Papantoniou G, Sala A, Škeljo F, Vitale S and Vassilopoulou V (2017) Old Info for a New Fisheries Policy: Discard Ratios and Lengths at Discarding in EU Mediterranean Bottom Trawl Fisheries. Front. Mar. Sci. 4:99. doi: 10.3389/fmars.2017.00...
Fisheries regulations driven by environmental concerns would not only directly affect fisheries sectors but also tend to indirectly influence other sectors through intersectoral input–output linkages. This paper examines both backward and forward linkages of Hawaii’s fisheries sectors to the rest of the economy, and based on this evaluates the potential economic impacts of longline fishing regu...
Competition between marine mammals and fisheries for marine resources-whether real or perceived-has become a major issue for several countries and in international fora. We examined trophic interactions between marine mammals and fisheries based on a resource overlap index, using seven Ecopath models including marine mammal groups. On a global scale, most food consumed by marine mammals consist...
Over the course of the 20th century, fossil fuels became the dominant energy input to most of the world's fisheries. Although various analyses have quantified fuel inputs to individual fisheries, to date, no attempt has been made to quantify the global scale and to map the distribution of fuel consumed by fisheries. By integrating data representing more than 250 fisheries from around the world ...
J. E. Toft1*, J. L. Burke2, M. P. Carey2, C. K. Kim1,3, M. Marsik4, D. A. Sutherland5, K. K. Arkema1, A. D. Guerry1, P. S. Levin2, T. J. Minello6, M. Plummer2, M. H. Ruckelshaus1, and H. M. Townsend7 The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA NOAA/National Marine Fisheries Service, Northwest Fisheries Science Center, 2725 Montlake Boulevard Ea...
About 25% of the world's fisheries are depleted such that their current biomass is lower than the level that would maximize the sustained yield (MSY). By using methods not previously applied in the fisheries conservation context, we show in four disparate fisheries (including the long-lived and slow-growing orange roughy) that the dynamic maximum economic yield (MEY), the biomass that produces ...
Patrick D. Lynch1‡*, Janet A. Nye2, Jonathan A. Hare1, Charles A. Stock3, Michael A. Alexander4, James D. Scott4, Kiersten L. Curti5, and Katherine Drew6 NOAA National Marine Fisheries Service (NMFS), Northeast Fisheries Science Center, Narragansett, RI 02882, USA School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794, USA NOAA Geophysical Fluid Dynamics Labora...
Fisheries are an essential ecosystem service, but catches from freshwaters are often overlooked. Hundreds of millions of people around the world benefit from low-cost protein, recreation, and commerce provided by freshwater fisheries, particularly in regions where alternative sources of nutrition and employment are scarce. Here, we derive a gridded global map of riverine fisheries and assess it...
The fisheries of Hawaii and other u.S.-associated islands in the Pacific Ocean are characterized by high diversity, both in the species exploited and the human cultures that exploit them. The commercial sector has undergone rapid growth in recent years, but recreational and subsistence sectors remain important. Information on these fisheries is generally not available in published form. This pa...
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