نتایج جستجو برای: crab fisheries
تعداد نتایج: 24698 فیلتر نتایج به سال:
In the USA, commercial fisheries that interact with marine mammals are categorised according to number of incidental takes relative defined Potential Biological Removal (PBR) for population. Three categories exist such fisheries: Category I, II and III, each varying in degree regulation. Fishery categorisation is based on a five-year running average entanglements fishery published annually Fede...
The Estuary of Cananéia, Iguape and Ilha Comprida is a part of the Estuarine Lagoon System of Cananéia, Iguape and Paranaguá, on the south coast of São Paulo State, Brazil. It has been recognised for its high standards of environmental conservation. The objective of this paper was to assess the blue crab (Callinectes sapidus) fishing in the region, from January 1998 to December 2006, and obtain...
Composition of trawl catch fauna off the mouth of the Rio Baluarte , southeastern Gulf of California
From April to December 2007, experimental trawls (n = 44, 4 to 22 m depth) were made off the mouth of the Rio Baluarte ecosystem (MRB) and compared to experimental trawls (n = 54, 7 to 40 m) in the adjacent offshore region (AOR) from 2002 to 2007. For both ecosystems, a total of 143 species belonging to 5 phyla were collected. Fishes comprised ca. 80% of the bycatch biomass, while molluscs and ...
Abstract: Illegal fisheries are one of the reasons for disruption of combination of the seas fisheries, their significant reduction and loss of food security. Therefore, mechanisms have been devised to prevent the depletion and destruction of the seas fisheries. On the one hand, an Exclusive Economic Zone has been created, and the Coastal State has been given the authority to manage and protect...
Nonnative species pose a threat to native biodiversity and can have immense impacts on biological communities, altering the function of ecosystems. How much value is at risk from high-impact invasive species, and which parameters determine variation in that value, constitutes critical knowledge for directing both management and research, but it is rarely available. We evaluated the value of the...
Content of mercury in hepatopancreas, muscle and exoskeleton of blue crab T. prymna from Musa estuary and their relationship with size of the organism and season were determined. Mean concentration of mercury in hepatopancreas, muscle and exoskeleton were 1.23, 0.61 and 0.41 µg/g dw, respectively. There was significant difference (p<0.05) in mercury levels depending on the sex with greater ...
Carbapenem-resistant Acinetobacter baumannii (CRAB) infections are increasing, and they are associated with an increased risk of mortality in hospitalized patients. Linear regression is commonly used to identify concurrent trends, but it cannot quantify the relationship between risk factors and resistance. We developed a model to quantify the impact of antibiotic consumption on the prevalence o...
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