نتایج جستجو برای: monthly. zooplankton were collected with plankton tows using 300 μm mesh net. totally

تعداد نتایج: 10874106  

Journal: :شیلات 0
سپیده سلیمانی پی کارشناس ارشد زیست شناسی دریا، دانشگاه علوم و فنون دریایی خرمشهر نسرین سخایی استادیار گروه زیست شناسی دریا، دانشکدة علوم دریایی و اقیانوسی، دانشگاه علوم و فنون دریایی خرمشهر سیمین دهقان مدیسه استادیار پژوهشکدة آبزی پروری جنوب کشور احمد سواری استاد گروه زیست شناسی دریا، دانشکدة علوم دریایی و اقیانوسی، دانشگاه علوم و فنون دریایی خرمشهر محمدعلی سالاری استادیار گروه زیست شناسی دریا، دانشکدة علوم دریایی و اقیانوسی، دانشگاه علوم و فنون دریایی خرمشهر

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...

ژورنال: بوم شناسی آبزیان 2014
Bazrafshan, Shahram , Doustshenas, Babak , Movahedinia, Abdolali , Sakhaee, Nasrin , Savari, Ahmad ,

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...

2004
James Mwaluma Melckzedeck Osore Joseph Kamau Peter Wawiye

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...

2006
James R. Liebig Henry A. Vanderploeg Steven A. Ruberg

[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...

Journal: :international journal of aquatic biology 0
neda fazeli khorramshahr university of marine science and technology. department of biology, khorramshahr, iran ahmad savari khorramshahr university of marine science and technology. department of biology, khorramshahr, iran seyed mohamad bagher nabavi khorramshahr university of marine science and technology. department of biology, khorramshahr, iran rasool zare khorramshahr university of marine science and technology. department of biology, khorramshahr, iran

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...

Journal: :Frontiers in Marine Science 2022

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, ...

Journal: :تحقیق در علوم شیلاتی 0
s rezagholinejad a arshad s.m nurul amin f ehteshami

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...

2012
J. Berge A. S. Båtnes G. Johnsen S. M. Blackwell M. A. Moline

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 ...

Journal: :Ices Journal of Marine Science 2021

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...

A Arshad , F Ehteshami , S Rezagholinejad , S.M Nurul Amin ,

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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