نتایج جستجو برای: نسبت gammarus physa

تعداد نتایج: 159102  

Journal: :Memorias do Instituto Oswaldo Cruz 2005
W Lobato Paraense

In the course of several trips to Argentina I had the opportunity of collecting specimens of Acrorbis petricola Odhner,1937, Biomphalaria orbignyi Paraense, 1975, B. peregrina (Orbigny, 1835), B. tenagophila (Orbigny, 1835) Lymnaea viatrix Orbigny, 1835, Antillorbis nordestensis (Lucena, 1954), B. intermedia (Paraense & Deslandes, 1962), B. oligoza Paraense, 1974, B. straminea (Dunker, 1848), D...

Journal: :Zootaxa 2014
Denis Copilaș-Ciocianu Michał Grabowski Lucian Pârvulescu Adam Petrusek

Inland epigean freshwater amphipods of Romania are diverse and abundant for this region has a favourable geographical position between the Balkans and the Black Sea. Excluding Ponto-Caspian species originating in brackish waters and freshwater subterranean taxa, there are 11 formally recognized epigean freshwater species recorded from this country. They belong to 3 genera, each representing a d...

Journal: :journal of chemical health risks 0
rezaei m. kamali a. and shapoori m.

marine ecosystem pollution is one of the important problems of today environment. in this study the existence of heavy metal in the namrood river, situated in firoozkooh in tehran province, iran has been investigated. the namrood river is located near firoozkooh route, and is affected by pollutant from tourist centers, entertainment, gas stations, nearby villages’ sewage systems, farming efflue...

Journal: :Memorias do Instituto Oswaldo Cruz 2004
W Lobato Paraense

In the course of a trip to Ecuador I had the opportunity of collecting topotypic specimens of the following nominal species of pulmonate molluscs: Biomphalaria cousini Paraense, 1966; Planorbis equatorius Cousin, 1887; P. canonicus Cousin, 1887; Lymnaea cousini Jousseaume, 1887 and P. boetzkesi Miller, 1879. Additional findings were: Helisoma trivolvis (Say, 1817), Biomphalaria peregrina (Orbig...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران - دانشکده علوم 1381

در مطالعه حاضر، دو جورپایان استانهای اصفهان و قم از سه جنبه ، شناسایی گونه ها، مطالعات تکوینی و مطالعات کاریولوژیکی مورد بررسی قرار گرفتند. در استان اصفهان سه گونه ‏‎ g.komarekl,g.proiectus,gammarus pseudosyriacus‎‏ و در استان قم دو گونه ‏‎g.proirectus‎‏ و ‏‎g.pseudosyriacus‎‏ شناسایی شد . در هر دو استان گونه ‏‎g.pseudosyriacus‎‏ غالب بود.

Journal: :Revue suisse de zoologie. 1957

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