Original scientific paper

NEW DATA ON ICHTHYOFAUNA OF RIVER ČESMA (CENTRAL CROATIA)

Dušan Jelić ; prof. biol., Državni zavod za zaštitu prirode, Trg Mažuranića 5, 10 000 Zagreb
Mišel Jelić ; Biološki odsjek, Prirodoslovno–matematički fakultet, Sveučilište u Zagrebu, Rooseveltov trg 6, 10000 Zagreb
Petar Žutinić ; Biološki odsjek, Prirodoslovno–matematički fakultet, Sveučilište u Zagrebu, Rooseveltov trg 6, 10000 Zagreb

Abstract

During the period between April and October 2006 we conducted extensive research on ichthyofauna of river Česma in order to extent the knowledge of the freshwater fish fauna of Bjelovar–Bilogora county (central Croatia). We confirmed the presence of 25 fish species sorted in 8 families. Most numerous family was Cyprinidae with 16 species and Percidae with 3, while the remaining 6 families were represented by only one species. According to the proportion in the total individual number, the most abundant were Gobio obtusirostris (13.8%), Rutilus rutilus (12.4%), Rhodeus amarus (11.8%) and Carassius gibelio (11.3%). In the terms of total fish weight (ichthyomass), highest represented was Carassius gibelio (49.5%), followed by Silurus glanis (6.1%), Squalius cephalus (5.4%), Ameiurus melas (4.7%) and Leuciscus idus (4.1%). As there are no previously published data, all 25 species have been recorded for the first time for the river ^esma basin, while Leuciscus idus and Phoxinus phoxinus have also been recorded for the first time in Bjelovar–Bilogora county.

Keywords

Česma river; ichthyofauna; being imperiled

Hrčak ID:

62942

URI

https://hrcak.srce.hr/62942

Publication date:

30.9.2010.

Article data in other languages: croatian

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