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RESEARCHES REGARDING THE FISH COMMUNITIES IN THE CATCHMENT OF RIVER GURGHIU


RAMONA PINTILIEASA 1, DOREL URECHE 2, ALINA DIACONESCU 3
1. „Al. I. Cuza" University of Iasi, Faculty of Biology, 20A Blvd. Carol I, 700505, Iasi , România e-mail: bio06ramona@yahoo.com
2. „Vasile Alecsandri” University of Bacau, Faculty of Engineering, Mărăşeşti Street 157, Bacau, Romania e-mail: dureche@ub.ro
3. „Vasile Alecsandri” University of Bacau, Faculty of Engineering, Mărăşeşti Street 157, Bacau, Romania e-mail: alina_yoana20@yahoo.com

Issue:

SCSB, Number 2, Volume XX

Section:

Volume 20, No.2 - Animal Biology

Abstract:

The aim of this study, which was carried

out on the main course of River Gurghiu and on

some of its tributaries over the year 2009. was to

assess the state of the fish communities in the

basin of River Gurghiu, and also to highlight

significant changes in fish communities. 12 native

fish species were found, with an amount of 469

individuals and 4941.5 g. Based on the ecological

indices of the fish associations, two fish zones

were found in the catchment of the River

Gurghiu: brown trout zone and mediterranean

barbel zone.

Biodiversity in the sampling sites is

variable. The highest value of biodiversity index

was found on the main course of the River

Gurghiu in 2009. The biological integrity index

has recorded high values, corresponding with the

first integrity class (excellent) in the most of the

sampling sites. The overall state of the fish

communities in the catchment of River Gurghiu is

very well. Consequently, the fish populations

have a good self-support capacity.

Keywords:

fish communities, Gurghiu, biodiversity, biological integrity.

Code [ID]:

SCSB20112002V20S01A0019 [0003736]


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