نتایج جستجو برای: chironomid abundance

تعداد نتایج: 81236  

Journal: :Frontiers in Earth Science 2021

Millennial-scale climate change history in eastern Siberia and relationships between diatom diversity, paleoclimate, sediment-geochemical lake system trajectories are still poorly understood. This study investigates multi-proxy time series reaching back to the Late Pleistocene derived from radiocarbon dated Lake Bolshoe Toko sediment cores, southeastern Yakutia, Russia. We analyzed diatoms, ele...

Journal: :OECD guidelines for the testing of chemicals 2023

Journal: :Annales de Limnologie - International Journal of Limnology 2017

Journal: :international journal of aquatic biology 0
neda fazeli guilan university, department of marine biology, rasht, iran. rasool zare department of fisheries, faculty of natural resources university of tarbiat modarres, noor, iran. seyed mohammad bagher nabavi khorramshahr university of marine science and technology. department of biology khorramshahr, iran. saeed sanjani khorramshahr university of marine science and technology. department of biology khorramshahr, iran.

calanoid, cyclopoid, harpacticoid and poecilostomatoid copepods were investigated over the year at five stations in the chabahar bay, oman sea. this area is under the influence of the indian ocean seasonal monsoons. the samples were collected using vertical plankton tows with 100 µm mesh nets. copepods were identified into 20 genera and 59 species. calanoid formed about 15% to 62% and cyclopoid...

Journal: :journal of the persian gulf marine sciences 0
javad daghigh roohi iranian fisheries science research institute, inland waters aquaculture research center, agricultural research education and extension organization (areeo), bandar-e-anzali, iran masoud sattari fisheries department, faculty of natural resources, university of guilan, sowmeh sara, iran fakhraddin mirhashemi nasab iranian fisheries science research institute, inland waters aquaculture research center, agricultural research education and extension organization (areeo), bandar-e-anzali, iran

in this survey, 54 specimens of common carp (cyprinus carpio) were collected from anzali wetland between august 2011 and july 2012. after recording biometric characteristics, routine necropsy and parasitology methods were used. totaly, 3165 individuals of parasites were isolated and identified from common carp. parasitofauna consisted of 10 species as follows: two protozoans, ichthyophthirius m...

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