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The feeding selectivity of wels [Silurus glanis L.] in Lake Goreckie

100%

Czarnecki M., Andrzejewski W., Mastynski J.

Archives of Polish Fisheries

2003

tom 11

nr 1

In 1997, 375 cultivated wels specimens were released into Lake Góreckie, which is located in the Wielkopolski National Park. The average mass per specimen was 1,350 g. Control catches were made in 1998 and 1999, and the diet consumed by the wels was investigated. The striped crayfish Orconectes limosus Raf. was detected in 51% of the fish caught. The contribution of striped crayfish to the wels diet fell to 4% after two years. This was probably correlated with changes in the feeding grounds of the older wels.

Ograniczanie wyników

1 Archives of Polish Fisheries

1 Andrzejewski W.

1 Czarnecki M.

1 Mastynski J.

1 2003

Wyniki wyszukiwania

The feeding selectivity of wels [Silurus glanis L.] in Lake Goreckie