نتایج جستجو برای: sustainable fishing

تعداد نتایج: 135278  

2007
Daniel Pauly Ratana Chuenpagdee

How can it be that fisheries appear in trouble every time newspapers report on them? Coastal and marine fisheries have existed for a long time. Initially, people waded along the shore gathering shells and harpooned whatever marine mammal or large fish ventured inshore. Only those fish and other animal species that were large and had very narrow coastal distribution were then in danger of being ...

2015
Wen-Hong Liu

This study establishes an offshore and coastal fisheries policy indicator system to evaluate the performance of policies to achieve sustainable development in offshore and coastal fisheries. A modified Delphi method is used to establish this system, and the weights of indicators are calculated using the analytic hierarchy process (AHP) to aggregate indicators. Results show that ecological polic...

2017
Marco Ortiz Richard Levins

Several administrative polices have been implemented in order to reduce the negative impacts of fishing on natural ecosystems. Four eco-social models with different levels of complexity were constructed, which represent the seaweed harvest in central-northern Chile under two different regimes, Management and Exploitation Areas for Benthic Resources (MAEBRs) and Open Access Areas (OAAs). The dyn...

Journal: :Earth system governance 2023

As area-based marine conservation coverage expands to meet global targets, tension with fishing activities increases. While fully protected areas (FPAs) provide the largest range of long-term social-ecological benefits, their establishment has been constrained by difficulties arising from short-term costs protection, and associated limitations in economic incentives resources required for effec...

Journal: :Revista de biologia tropical 2013
Yuself R Cala Alberto de Jesús-Navarrete Frank A Ocaña José Oliva-Rivera

The queen conch Eustrombus gigas is an important fisheries resource in the Caribbean region. In Cuba Island the studies about this resource are very scarce and particularly in the Southeastern regions of the country. With the aim to get important fishery information about this gastropod, adult Queen Conch density and frequency of reproductive activity were evaluated in Cabo Cruz, Cuba, during 2...

2017
Aliki Panagopoulou Zoë A. Meletis Dimitris Margaritoulis James R. Spotila

Small-scale fisheries are responsible for high numbers of animals caught as bycatch, such as turtles, cetaceans, and seals. Bycatch and its associated mortality is a major conservation challenge for these species and is considered undesirable by fishermen. To gain insights on the impact of bycatch on small-scale fishermen and put it in context with other financial and environmental challenges t...

2008
Kurt M. Schaefer Daniel W. Fuller

Purse seiners operating in the Pacific Ocean catch large quantities, in various proportions, of skipjack, yellowfin, and bigeye tunas associated with floating objects, in particular fish-aggregating devices (FADs). There is concern about the high fishing mortality rates on small bigeye and yellowfin tunas associated with floating objects from purse-seine fisheries, and the negative impact on su...

2015
L. Glamuzina P. Zacharaki

Baltic prawn, Palaemon adspersus population from the Parila lagoon (SE Adriatic Sea, Croatia) was studied between 2010-2011. Specimens were collected monthly in order to determine population structure, growth, mortality and reproduction of this important decapods species. The von Bertalanffy growth function parameters were found L∞=58.98 mm, K=0.975 year and to=-0.0046 years for males and L∞=72...

2006
Ron Duncan

The Pacific island countries persist with tuna fishing policies that are significantly inferior to what appear to be the economically and environmentally sensible courses to follow. Economists have been offering advice over a fairly long period about better policy options without having any discernable favourable impact. This lack of success might be due, as Gordon Tullock once said, to the fac...

2009
Felicia Magpantay Kenzu Abdella

A model of a system concerning one species of demersal (inshore) fish and one of pelagic (offshore) fish undergoing fishing restricted by marine protected areas is proposed in this paper. This setup was based on the FISH-BE model applied to the Tabina fishery in Zamboanga del Sur, Philippines. The components of the model equations have been adapted from widely-accepted mechanisms in population ...

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