نتایج جستجو برای: pelagic fisheries
تعداد نتایج: 21046 فیلتر نتایج به سال:
Wildlife and fisheries management are based upon economics: the law of supply and demand controls the direction of commercial fisheries. In the U.S. pelagic longline fishery, one example of a bycatch species that has received little research attention because of its lower economic value is the escolar (Lepidocybium flavobrunneum). Given its importance as a secondary market species, the main obj...
Global fisheries statistics exist since 1950, as part of the United Nations’ effort to generate statistics suitable for monitoring the development of the world economy (Ward, 2004). With some limitation to be discussed later, the statistics assembled and maintained by the Food and Agriculture Organization of the United Nations (FAO) allow tracking the growth and expansion of fisheries by countr...
We used a model of the pelagic ecosystem in the eastern tropical Pacific Ocean to explore how climate variation at El Niño – Southern Oscillation (ENSO) scales might affect animals at middle and upper trophic levels. We developed two physical-forcing scenarios: (1) physical effects on phytoplankton biomass and (2) simultaneous physical effects on phytoplankton biomass and predator recruitment. ...
At the Ninth Session of the Indian Ocean Tuna Commission in 2005, the commission adopted the resolution 05/05 , arising from the work of the Compliance Committee, concerning the conservation of sharks caught in association with fisheries managed by IOTC. It is stipulated that Contracting Parties and Cooperating non-Contracting Parties (CPCs) shall annually report their data for shark catches, r...
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