نتایج جستجو برای: fishery

تعداد نتایج: 7961  

2015
Georgios K. Tegos

Multidimensional Fishery Time Series database stores fishery time series data regarding different aspects of Greek fishery sector such as economical, technical, biological, space and time and it is used for carrying out sustainability and risk analysis of Cephalopods catch quantity in Greece. Economically the most important Cephalopods species Octopus seems to be sustainable for the last four y...

2009
RAGNAR ARNASON

Many fisheries are potentially very valuable. According to a recent report by the World Bank and the FAO (2008), global fisheries rents could be as high as US$ 40-60 billion annually on a sustainable basis. However, according to the report, due to the “common property problem”, most fisheries of the world are severely overexploited and generate no economic rents. The Lake Victoria Nile perch fi...

Journal: :Journal of theoretical biology 2016
Nao Takashina Marissa L Baskett

For any spatially explicit management, determining the appropriate spatial scale of management decisions is critical to success at achieving a given management goal. Specifically, managers must decide how much to subdivide a given managed region: from implementing a uniform approach across the region to considering a unique approach in each of one hundred patches and everything in between. Spat...

2005
Wen-yu Wang

In this study, we consider the effects of marine environmental factors on the spatial distribution of Ommastrephes bartrami in the western North Pacific Ocean during the period in which the commercial squid fishery operates. Spatial referenced fishery data and satellite-derived advanced very high resolution radiometry (AVHRR) sea surface temperature (SST) data, Sea-viewing Wide Fieldof-view Sen...

2005
Martin D. Smith

This paper considers the dynamic producer and consumer benefits from improving habitat that supports a commercial fishery under two different fishery management institutions. By coupling state equations that represent the effects of estuarine eutrophication on fish populations with a multispecies, two-patch spatial bioeconomic model that endogenizes output price through residual demand, the ana...

2001
Lone Grønbæk

Game theory is an analytical tool for modeling strategic interaction between agents. Strategic interaction in fishery is interpreted as the harvest by one agent highly affects other agents’ decision. This paper is a commented literature study on the fishery economics and game theory. It tends to describe how fishery models using game theory are build up. These models consist of an underlying bi...

2004

During the 1960s and 1970s, a significant groundfish fishery existed in the Gulf of Mexico. There were about 50 vessels in the fishery which targeted a groundfish complex that consisted of over 170 species, dominant of which were croaker, spot, seatrout, cutlassfish, sea catfish, porgies, perch, drums, hake, and butterfish. The primary directed fishery was for the pet food, harvesting 50,000 to...

2010
M. NJIRU A. GETABU

The fishery of Lake Victoria became a major commercial fishery with the introduction of Nile perch in 1950s and 1960s. Biological and population characteristics point to a fishery under intense fishing pressure attributed to increased capacity and use of illegal fishing gears. Studies conducted between 1998 to 2000 suggested capture of fish between slot size of 50 to 85 cm TL to sustain the fis...

2010
Katell G. Hamon Olivier Thébaud Stewart Frusher Richard Little

Individual transferable quotas (ITQ) were implemented in the Tasmanian red rock lobster fishery in 1998 and ten years later we assessed the impacts on the fishery. Particular attention was devoted to investigating the performances of the fishery with regard to three features identified as major impacts in the literature: rationalization of the fishing fleet, change in fishing strategy in order ...

Karataş , A, Karataş , E,

Fishery production is a very important income source in the world for many people. Many people earn their living in this field. Turkey has four seas and many fresh water resources so it is one of the most advantageous countries in the world in the context of fishery production. However, it cannot be said this sector has been given enough importance in Turkey. Whereas the fishing industry has be...

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