نتایج جستجو برای: iranian fisheries
تعداد نتایج: 55408 فیلتر نتایج به سال:
This paper is an attempt to synthesis the Danish experiences of devolved decision-making in fisheries, giving particular attention to the role of fishermen’s organisations in fisheries governance. The analysis are focuses on how user participation are institutionalized as comanagement between administrators and user groups. The paper discuss the possibilities and constraints for devolved an reg...
Regional councils manage United States fisheries. Fishermen can participate in fisheries managed by multiple councils, and effort controls in one region could lead to effort leakage into another. Theoretical modeling demonstrates that positive, negative, and no leakage are possible. Using difference-in-differences, we test for leakage across regional boundaries for a catch share program in New ...
Background: Kelp forests are highly productive ecosystem engineers of rocky cold-water marine coastlines, providing shelter, habitat and food for a variety of associated organisms. Several factors have been related with an observed trend of kelp deforestation in some regions of the globe. The effect of this trend on fisheries has been poorly studied. The European directives addressing the conse...
Although fisheries production and seafood trade are global in scope, with billions of dollars in exports, the rebuilding of collapsed fisheries often focus on national fisheries policy and management measures, with little attention to global supply chains and international consumer markets. Even with two moratoria and two decades of policy changes since the Northern Gulf cod fisheries collapsed...
Biological diversity is known to play an important role in generating and maintaining ecosystem productivity and other functions, and has consequently become a central focus of many efforts to preserve ecosystem services. Theoretical parallels suggest the diversity of fishing fleets may have a similarly important role in determining the productivity and ecological impacts of fisheries, but this...
Although overfishing has been recognized as responsible for the decline of major fish stocks, it has been less easy to demonstrate its indirect and detrimental effects on marine mammals, particularly dolphins. Competition with fisheries for the same food resources has been hypothesized to have led to the decline of several species of dolphins, including the endangered Mediterranean short-beaked...
In Iran, the number of published articles has increased significantly in the basic and applied sciences including medicine and its subspecialties during the recent years. The present study reviewed Iranian science production in medicine, focusing on Iranian medical journals and assessing the current status of Iranian medical journals in several information databases. The study revealed that onl...
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...
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