نتایج جستجو برای: fish catch
تعداد نتایج: 115655 فیلتر نتایج به سال:
abstract seafood is valuable protein sources for human being and acts important role in a healthy diet. due to probability of fish contamination, from catch time to consume time with different microorganisms, there’s different technics to prevent fish spoilage. the present study purposed to investigate the effect of encapsulated thyme (zataria multiflora boiss) extract and chitosan to inhibit l...
The value of critical habitats, such as seagrass, to act a nursery varies spatially and temporally; however, information is essential for the public stakeholders appropriately manage these habitats. We use an existing systematic long-term fisheries dataset in Port Phillip Bay examine variability habitat important commercial recreational species, King George Whiting (Sillaginodes punctatus). rep...
The European Standard EN 14757 recommends gillnet mesh sizes that range from 5 to 55mm (knot-to-knot) for the standard monitoring of fish assemblages and suggests adding gillnets with larger mesh sizes if necessary. Our research showed that the recommended range of mesh sizes did not provide a representative picture of fish sizes for larger species that commonly occur in continental Europe. We ...
Although iron is the fourth most abundant element in the Earth's crust, bioavailable iron limits marine primary production in about one third of the ocean. This lack of iron availability has implications in climate change because the removal of carbon dioxide from the atmosphere by phytoplankton requires iron. Using literature values for global fish biomass estimates, and elemental composition ...
The Southeast Alaska Coastal Monitoring (SECM) project has been sampling juvenile salmon (Oncorhynchus spp.) and associated biophysical parameters in the northern region of Southeast Alaska (SEAK) annually since 1997 to better understand effects of environmental change on salmon production. A pragmatic application of the annual sampling effort is to forecast the abundance of adult salmon return...
In this study, some reproductive characteristics of the yellow gooseberry, Upeneus doriae were investigated in Bandar Abbas coastal waters for a period of 8 months from July 2018 to February 2019. 300 fish specimens were selected from the bycatch fish of shrimp trawl. The samples were then transferred to the laboratory and the biometric data and some aspects of the biology of the fish were r...
Fish communities differ significantly between the littoral and pelagic habitats. This paper attempts to define shift in two habitats based on European standard gillnet catch. We sampled benthic from shore Lake Most Římov Reservoir (Czech Republic). The 3 m deep nets were spanned across water body at equal distances boundary points, where depth was 3.5 m. community contained more fish, species, ...
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