Bibliography
ABOUT LOACH IN THE SAVA RIVER
2007, 65 (3) p. 99-110
D. Ivelić, I. Jablan, S. Svjetličić, Marina Piria
Abstract
genus Cobitis. In the Sava river near Zagreb, two species of the genus Cobitis were recorded C. elongata and C. elongatoides. Both species live together in the mud covered slow flowing sections of the river. As no data on the biology of these two loach were found in literature, the aim of this study was to research the conditions of the loach from the Sava river. The fish were caught by electric gear on three locations in May 2006. Also, macroinvertebrates were collected and physical and chemical analyses of water were performed. Qualityof water of the Sava river is sufficient for growth, reproduction and presence of C. elongata, it is less so for C. elongatoides. Macroinvertebrates are present with 10 taxa at three investigated sites. Crustacea was dominant at Medsave site, Oligochaeta at Lijevi Dubrov~ak site and Diptera and Gastropoda at Setu{ site. There are some differences in morphometric parameters of both species, due to the differences in the body dimensions. Main differences occurred when measuring the value of prepectoral distance, the end of prepectoral distance and preventral distance of the fin. Condition factor of C. elongata was lower (0.61) than that of C. elongatoides (0.81). Length–mass relationships of C. elongata could be expressed by the following formula: W=0.0039xSL3,2063, and C. elongatoides W=0.0057xSL3,1872.
Keywords
c. elongata, c. elongatoides, sava river, macroinvertebrates