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, 82 (5), 1739-45

Haematophagous Feeding of Newly Metamorphosed European Sea Lampreys Petromyzon Marinus on Strictly Freshwater Species

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Haematophagous Feeding of Newly Metamorphosed European Sea Lampreys Petromyzon Marinus on Strictly Freshwater Species

S Silva et al. J Fish Biol.

Abstract

Approximately 6% of the freshwater living northern straight-mouth nase Pseudochondrostoma duriense in two Spanish rivers had attached post-metamorphic sea lamprey Petromyzon marinus. Minimum prey size was 16·1 cm fork length and 56·3 g mass. The condition factor of attacked P. duriense was 16% lower than that of unattacked conspecifics.

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