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RESEARCH ON THE RESTORATION OF THE FISH COMMUNITIES FROM THE LOWER BASIN OF BĂ‚RLAD RIVER


IONUĹŁ STOICA, KLAUS WERNER BATTES, FERDINAND PRICOPE
University „Vasile Alecsandri” of Bacau, Faculty of Science, Department of Biology, Ecology and Environment Protection, Marasesti Street, no. 157, Romania e-mail: ionut_stoica23@yahoo.com

Issue:

SCSB, Number 2, Volume XXI

Section:

Volume 21, No.2 - Animal Biology

Abstract:

This study reflects the current state of the

fish fauna from the lower basin of river Bârlad,

within the research started in 2003 in the

hydrographic basin of this river regarding the

inventorying of the species of fish from these

waters. The lower basin and particularly the main

course of river Bârlad have been seriously affected

by water pollution, which led even to the extinction

of the fish communities across the entire main

course of the river, downstream of the city of

Bârlad.

This paper highlights the extent to which

these fish communities have recovered, the data

obtained being compared to that from 2003 and

from the literature in order to identify the changes

suffered by the structure of the fish communities.

To this effect, investigations have been conducted

in terms of species composition, the structure of

fish assemblages, as well as the index of biological

integrity (IBI) which best reflects the present

condition of the fish stocks in these ecosystems.

Keywords:

Bârlad catchment area, stock, biodiversity, fish fauna, integrity index.

Code [ID]:

SCSB20122102V21S01A0008 [0003765]


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