نتایج جستجو برای: sander lucioperca

تعداد نتایج: 1132  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده منابع طبیعی 1389

به منظور بررسی تاثیر ماده جاذب بتائین جهت افزایش خوش خوراکی و غذاگیری در تغذیه سوف ماهیان معمولی انگشت قدی (sander lucioperca) آزمایشی به مدت 6 هفته در کارگاه تکثیر و پرورش ماهیان سوف شادروان یوسف پور (سیاهکل) صورت گرفت. تیمارهای مورد استفاده در این آزمایش شامل: غذای زنده، بیومار، بیومار+1% بتائین و بیومار+2% بتائین بودند. ماده جاذب در دو سطح مختلف 1% و 2% به جیره ی غذایی قزل آلای رنگین کمان اض...

Journal: :Folia parasitologica 2014
Anastasiia Grybchuk-Ieremenko Alexander Losev Alexei Yu Kostygov Julius Lukeš Vyacheslav Yurchenko

One thousand three hundred seventy three fish specimens of eight different species from the vicinity of Kyiv, Ukraine, were examined for the presence of trypanosomes and 921 individuals were found to be infected. The prevalence of infection ranged from 24% in freshwater bream, Abramis brama (Linnaeus), to 100% in spined loach, Cobitis 'taenia' Linnaeus. The level of parasitaemia also varied sig...

Journal: : 2023

The aim of this study is to examine the relationship between total length and standard lengths with live weight freshwater pikeperch growing in Beyşehir Lake population using four mathematical models. 50 female fish materials marketable size limit age were used. data obtained divided into two groups: estimation (70%) test (30%). applied models are exponential decay, Wood models, such research g...

The objective of this study was to determine the distribution of selected metal concentrations (Cd, Pb, Cr and Fe) in the muscles of five fish species (Sander lucioperca, Liza auratus, Alosa caspia, Cyprinus carpio and Liza saliens) from Gorgan Bay the south-eastern Caspian Sea, in order to assess health risk to the human via fish consumption by graphite furnace atomic absorption spectrophotome...

Journal: : 2023

The Vygozero Reservoir has the status of a reservoir republican subordination, and fishing there is carried out mainly by fishermen Segezha region Republic Karelia. contributes 3-7% to total volume fish catch in Karelia occupies 5–6 place terms among 12 reservoirs In this regard, problem monitoring populations valuable commercial species urgent at present stage. First all, zander whitefish are ...

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