Estimating fish communities structure and diversityfrom predeltaic Danube area

Scientific Papers Animal Science and Biotechnologies

Petronela Georgiana Calin Sandu¹  Lucian Oprea¹ 

[1] Universitatea Dunarea de Jos Galati;

关键词: danube;    fish communities;    abundance;    diversity;    ecological significance;   

DOI  :  

来源: DOAJ

【 摘 要 】

The paper is presenting some aspects regarding the structure of  fish communities from 22 Km of predeltaic sector of Danube River, between the mouth of Siret River (km 155) and Prut River (Mm 72.5). The aim of the study is to assess the ecological status of the area, using some analytical and synthetic ecological indices, but also diversity and equitability indices. From April to December 2012, in four fishing areas (km 150-151, Mm 77-78, Mm 76-77, Mm 74-74.5), 7121 fish of 31 species, from 7 famillies and 6 orders, were collected. The best represented family is Cyprinidae with 17 species. The numerical abundance ranged between 1fish/species (zingel, Danube streber and Black Sea trout - rare species) and 2035 fish/specie (pontic shad - abundant specie). The pontic shad (43.98%), common bream (12.09%) and Prussian carp (10.66%) are eudominant species, having the biggest potential in fish productivity.

【 授权许可】

Unknown