Diet composition of the otter Lutra lutra in the Bieszczady Mountains, south-east Poland

• Autorzy: Harna G.
• Języki publikacji: EN

Abstrakty

EN

The diet of the otter Lutra lutra (Linnaeus, 1758) was studied in the Bieszczady Mts (south-east Poland), at four locations situated on the small rivers from October 1987 to June 1989. In ail, 379 samples of spraints were analysed and 1687 animals preyed upon belonging to various systematic groups were identified. Frequency analysis indicated that most of the prey was fish (63.4%) with insects contributing 20.2% and amphibians 14.5%. Among fish the most frequently occurring were Phoxinus phoxinus (frequency - 15.0%), Cottus sp. (14.4%) and Noemacheilus barbatulus (9.0%). Relatively low frequencies were found for Salmo trutta (5.7%) and Thymallus thymallus (3.1%). Percentage analysis indicated that most of the diet comprised fishes (73.2% of biomass) and much less amphibians (26.8%). Among fish species S. trutta dominated (42.4% of all biomass) over Coitus sp. (10.2%) and N. barbatulus (3.9%).

Słowa kluczowe

EN

diet; Bieszczady Mountains; diet component; Poland; otter; Lutra lutra

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 1993
• Tom: 38
• Numer: 2
• Opis fizyczny: p.167-174,fig.

Twórcy

autor

Harna G.

• Jagiellonian University, Ingardena 6, 30-060 Krakow, Poland

Bibliografia

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