نتایج جستجو برای: fishing community

تعداد نتایج: 376386  

2005
Jacob Beal Sara Bennett

A group of Colombian indigenous communities and Amacayacu National Park are cooperating to make regulations for sustainable use of their shared natural resources, especially the fish populations. To aid this effort, we are modeling the interactions among these communities and their ecosystem with the objective of predicting the stability of regulations, identifying potential failure modes, and ...

This paper used the Data Envelopment Analysis (DEA) to measure the technical efficiency of fishing vessels in Haizhou Bay, and then used the Tobit regression to define its influencing factors. This study shows that the overall fishing capacity utilization of fishing vessels at present is very low which indicates that there is a serious waste of resources problem in Haizhou Bay. Specifically, th...

Journal: :Ecological applications : a publication of the Ecological Society of America 2010
Julie B Kellner Steven Y Litvin Alan Hastings Fiorenza Micheli Peter J Mumby

Recent empirical studies have demonstrated that human activities such as fishing can strongly affect the natural capital and services provided by tropical seascapes. However, policies to mitigate anthropogenic impacts can also alter food web structure and interactions, regardless of whether the regulations are aimed at single or multiple species, with possible unexpected consequences for the ec...

Journal: :Proceedings. Biological sciences 2013
P Daniel van Denderen Tobias van Kooten Adriaan D Rijnsdorp

Bottom trawls are a globally used fishing gear that physically disturb the seabed and kill non-target organisms, including those that are food for the targeted fish species. There are indications that ensuing changes to the benthic invertebrate community may increase the availability of food and promote growth and even fisheries yield of target fish species. If and how this occurs is the subjec...

2017
Timothy D. Clark Vanessa Messmer Andrew J. Tobin Andrew S. Hoey Morgan S. Pratchett

Climate warming is likely to interact with other stressors to challenge the physiological capacities and survival of phenotypes within populations. This may be especially true for the billions of fishes per year that undergo vigorous exercise prior to escaping or being intentionally released from fishing gear. Using adult coral grouper (Plectropomus leopardus), an important fisheries species th...

2015
Robert B Thorpe Will J F Le Quesne Fay Luxford Jeremy S Collie Simon Jennings

Implementation of an ecosystem approach to fisheries requires advice on trade-offs among fished species and between fisheries yields and biodiversity or food web properties. However, the lack of explicit representation, analysis and consideration of uncertainty in most multispecies models has limited their application in analyses that could support management advice.We assessed the consequences...

Journal: :بهره برداری و پرورش آبزیان 0
افشین عادلی دانشگاه گرگان ارغوان معماری -

abstract nowadays, the management of water resources by planning through appropriate site selection, fish species storage and selection, enforcement and providing various side services has become a profitable, entrepreneurial and fun process. survey and usage of development of fee-fishing experience in the world wide represent a model in order to a better economical and fun plan offers and envi...

2016
João C. Ferreira Serge Lage Iola Pinto Nuno Antunes

— This paper discusses the results of an applied research on the fishing activity based on a monitor system developed by a company and fishing reports produced at the end of each fishing activity. Due to economic interests combined with fishing limitations there is a natural tendency for wrong reporting. We apply Data Mining (DM) methodologies to find fishing patterns. These DM techniques in SQ...

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