Migrating eels in a Canterbury river, New Zealand
作者:
A. M. R. Burnet,
期刊:
New Zealand Journal of Marine and Freshwater Research
(Taylor Available online 1969)
卷期:
Volume 3,
issue 2
页码: 230-244
ISSN:0028-8330
年代: 1969
DOI:10.1080/00288330.1969.9515292
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A fish trap in the upper reaches of the South Branch stream, Canterbury, New Zealand, caught eels from December 1957 to October 1964. The downstream migrations of immature and adult eels of both New Zealand freshwater species (short‐finnedAnguilla australisand long‐finnedA. dieffenbachii)were recorded. These migrations showed a seasonal and a lunar periodicity, and the larger runs were also influenced by rainfall, water volume, or the passage of a depression. Seasonal peaks were marked for mature eels of both species, and for immatureA. australis, but not for immatureA. dieffenbachii.
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