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- Title
Adatok a nagy kárókatona (Phalacrocorax carbo) halfogyasztásáról a Tisza-tavon.
- Authors
N., Tóth; G., Papp; P., Gyüre; L., Juhász
- Abstract
The great cormorant (Phalacrocorax carbo) is a common bird species in Hungary. Fish consumption of the great cormorant can cause significant loss in wintering fishes mainly in rivers. The Lake Tisza Sport Fishing Ltd. makes cormorant population control regularly in the Lake Tisza. This research was conducted at winter of 2022 (in January and February) and based on the stomach content analysis of hunted great cormorants. Ten fish species were identified from 37 stomach samples, and some of the fish remains were unidentifiable. The most common fishes in the stomach content were the bream species group, the Freshwater Bream (Abramis brama), White Bream (Blicca bjoerkna), Blue Bream (Ballerus ballerus) and Ide (Leuciscus idus). In biomass, pikeperch (Sander lucioperca) represented a marked proportion of the food of the great cormorant. The results showed that Great Cormorants most frequently caught fish overwintering in large groups, but also prey on bigger Pike-perch individuals.
- Subjects
HUNGARY; GASTROINTESTINAL contents; FISHING; CORMORANTS; WALLEYE (Fish); SEBASTES marinus
- Publication
Pisces Hungarici, 2022, Vol 16, p91
- ISSN
1789-1329
- Publication type
Article