نتایج جستجو برای: monthly. zooplankton were collected with plankton tows using 300 μm mesh net. totally
تعداد نتایج: 10874106 فیلتر نتایج به سال:
the aim of this investigation was to study the planktonic shrimp-like communities density and diversity in artificial reefs of khuzestan coasts, bahrakan waters (the persian gulf). sampling was conducted for one year from may 2011 to april 2012, monthly. zooplankton were collected with plankton tows using 300 μm mesh net. totally, two superfamily, penaeoidea, sergestoidea and one suborder carid...
Anomura is a group of Malacostraca that constitute important communities of marine intertidal zone and deeper communities of benthic habitats. The larval stages differ among families of Anomura. In this investigation Anomura larval populations were sampled and studied from Iranian coastal waters of Persian Gulf in monthly basis from March to October 2011. Sampling process was conducted using su...
Samples were collected monthly at four fixed stations in Mida creek from May 1996 to April 1997, in order to determine the species composition, abundance and diversity of phytoplankton and zooplankton collected with 20and 332-μm mesh size plankton nets respectively. Sampling also included measurement of salinity and temperature. Peaks in phytoplankton abundance occurred in May and January, foll...
[1] There has been a question as to whether the optical plankton counter (OPC) accurately measures zooplankton density and biomass in large lakes, oceans, and estuaries. Results from our Lake Michigan surveys in 1998–2000 often revealed poor agreement between the OPC-2T and 153-mm mesh plankton net samples. The most serious common problem was overestimation of zooplankton biomass by the OPC rel...
temporal and spatial variation of zooplankton abundance, composition and biomass were examined on the chabahar bay, oman sea. the chabahar bay, a subtropical and semi-enclosed bay, provides an ideal breeding ground for many fish and shellfish. five stations were investigated along the bay. this area is under the influence of the indian ocean seasonal monsoons. zooplankton was collected with ver...
In the past several years, capabilities of optical tools and in situ imaging devices have greatly expanded are now revolutionizing field plankton research. These facilitated discovery new enhanced understanding populations fragile gelatinous zooplankton. Imaging becoming more accessible regularly deployed on oceanographic studies monitoring efforts. However, despite increasing use these tools, ...
the aim of this study was to estimate the influence of selected environmental parameters on the fish larval distribution and abundance between october 2012 and september 2013 in the mangrove estuarine area of marudu bay, sabah, malaysia. fish larvae samples were collected monthly using plankton net of 350 mm of mesh size with a mouth opening of 40.5 cm in diameter through 20 min surface tows. f...
This study examines the composition and activity of the planktonic community during the polar night in the high Arctic Kongsfjord, Svalbard. Our results are the first published evidence of bioluminescence among zooplankton during the Arctic polar night. The observations were collected by a bathyphotometer detecting bioluminescence, integrated into an autonomous underwater vehicle, to determine ...
Abstract Assessment of zooplankton abundance, distribution, community composition, and temporal variability is critical to understanding the effects climate change on lower trophic level production availability for consumption by larger consumers. Zooplankton sampling performed across Canadian continental shelf system Fisheries Oceans Canada's Atlantic Zone Monitoring Programme (AZMP). Sampling...
The aim of this study was to estimate the influence of selected environmental parameters on the fish larval distribution and abundance between October 2012 and September 2013 in the Mangrove estuarine area of Marudu bay, Sabah, Malaysia. Fish larvae samples were collected monthly using plankton net of 350 mm of mesh size with a mouth opening of 40.5 cm in diameter through 20 min surface tows. F...
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