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Food Habits of Four Bottom‐Dwelling Gobiid Species at the Confluence of the Danube and Hron Rivers (South Slovakia)
Author(s) -
Adámek Zdeněk,
Andreji Jaroslav,
Gallardo José Martín
Publication year - 2007
Publication title -
international review of hydrobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 1434-2944
DOI - 10.1002/iroh.200510998
Subject(s) - mayfly , biology , nymph , larva , caddisfly , ecology , zoology
Since 1997, three new Neogobius species ( Neogobius kessleri , N. fluviatilis and N. melanostomus ) have been regularly recorded in the Slovak part of the Danube River, formerly inhabited only by one native gobiid species ( Proterorhinus marmoratus ). The study of their food habits proved that the amphipod Corophium curvispinum, chironomid larvae and pupae, caddis fly larvae ( Hydropsyche sp.) and mayfly nymphs ( Ephoron virgo , Potamanthus luteus ) were the most important food items contributing to the similarity of the diets of the gobiid species. Fish (0+ Zingel zingel and Sander lucioperca ) appeared in the diet of N. kessleri only. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)