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Descent of European silver eels, Anguilla anguilla L., in a Norwegian watercourse
Author(s) -
Haraldstad Ø.,
Vøllestad L. A.,
Jonsson B.
Publication year - 1985
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1985.tb04238.x
Subject(s) - biology , anguillidae , fishery , fresh water , full moon , oceanography , zoology , ecology , fish <actinopterygii> , geology
Seaward migration of silver eels occurred at nights during autumn at decreasing water temperature. Maximum migration‐rate occurred mid‐October at medium and decreasing water discharge. Most eels descended in the first quarter of the lunar cycle, few eels descended at full moon. Most males and small females migrated earlier in the season than the larger females. The migration speed of silver eels in fresh water was independent of body length.