Quick search
Go!

RESEARCH ON THE STATUS OF THE FISH COMMUNITIES OF THE UPPER COURSE OF BISTRITA RIVER


STOICA IONUĆą, BATTES KLAUS, PRICOPE FERDINAND, PRISECARU MARIA
„Vasile Alecsandri” University of Bacau, Faculty of Science, Marasesti Street 157, Bacau, Romania, e-mail: ionut.stoica@ub.ro

Issue:

SCSB, Number 2, Volume XXII

Section:

Volume 22, No. 2 - Animal Biology

Abstract:

Study attempts to highlight the extent of damage to ihtiocenozelor, given that fish fauna of the river was once very rich in species and abundant quantity. By determination of quality parameters (species composition) of quantitative parameters (numeric stock and gravimetric) and ecological indices (index of ecological values, biodiversity index and IBI) best reflects the degree of dysfunction of the aquatic ecosystem. Maximum abundance of specimens recorded in the mountainous area of Bistrita, upstream Bicaz lake and Poiana Teiului, where influence is greatest. Low values occurring at the confluence with Neagra ƞarului. Zoning fishery on the upper Bistrita underwent a number of changes to the existing initial by restricting the grayling zone upstream from Vatra Dornei, restriction area to springs and repleace common nase zone the section Brosteni – Lake Bicaz. Currently dominates the Bistrita River mediterranean barbel zone from Vatra Dornei until the accumulation of Poiana Teiului Integrity of fish communities is good and very good, except for 5 (confluence with Black ƞarului Bistrita), being the limit of sustainability.

Keywords:

fish communities, stock, biodiversity, integrity index, BistriĆŁa catchment area.

Code [ID]:

SCSB201302V22S01A0011 [0003953]


Copyright (c) 1995-2007 University of Bacău