نتایج جستجو برای: kiwzestan fishes

تعداد نتایج: 19147  

Journal: :تحقیقات دامپزشکی 0
فاطمه نظری چمک دانشکده» علوم زیستی، دانشگاه شهید بهشتی جمیله پازوکی دانشکده» علوم زیستی، دانشگاه شهید بهشتی مهتاب ابراهیمی مرکز تحقیقات و منابع طبیعی و کشاورزی استان کرمان محمود معصومیان مؤسسه تحقیقات شیلات ایران

the fishes of capoeta genus are living in different fauna regions of iranian freshwater fishes. the parasitological studies of these fishes are important on subjects of ecology and life cycles in different fishes. the aim of this study was to study the parasites of capoeta spp. in halil-rud river, kerman province. samples were collected from the freshwater fishes (between oct. 2007 to sep. 2008...

Journal: :Environmental toxicology and chemistry 2003
James M Lazorchak Frank H McCormick Tala R Henry Alan T Herlihy

The extent of contamination of fish in the Mid-Atlantic Region was evaluated as part of the U.S. Environmental Protection Agency's Monitoring and Assessment Program's regional assessment in 1993 through 1994. Fish assemblages from wadeable streams were dominated by small, short-lived fishes (e.g., minnows, darters, and sculpins) that were more widely distributed and abundant than large fishes t...

2004
Telmo Morato William W. L. Cheung Tony J. Pitcher

Based on life history and ecological characteristics, several authors have placed seamount fishes at the extreme end of the vulnerability spectrum. However, it was still unclear if there is justification for the generalization that seamount fishes overall possess specific life-history characteristics that render them more vulnerable to fishing than other species. In this contribution, we test t...

Journal: :Annals and Magazine of Natural History 1889

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Endemic fishes are part of the genetic resources in aquatic habitats. The Caspian Sea, as the largest lake in the world, has a unique habitat diversity and is of great importance for the countries of the region. Over the recent decades, with the increase in the level of anthropogenic sound, its effects on freshwater and marine fishes have been considered by fisheries managers and stakeholders. ...

Journal: :iranian journal of fisheries science 0
k. nazari m. shamsaie [email protected] n. eila a. kamali i. sharifpour

selenium, a trace mineral complement is used as cofactor of antioxidant enzymes that protects fishes against environmental stress agents and enhances performance in fishes. in this study the different levels of organic and inorganic source of  selenium were included in juvenile rainbow trout diet to evaluate feed conversion ratio (fcr), specific growth rate (sgr), weight gain percent (wg), cond...

2007

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