Variation in smoltification age and its determinants in sockeye salmon of Lake Azabach’e

Variation in smoltification age and its determinants in sockeye salmon of Lake Azabach’e In this paper, we analyze scale samples of sexually mature sockeye salmon from Lake Azabach'e collected over many years and data on the abundance of zooplankton in this lake. For native juvenile sockeye salmon, the major limiting factor of growth and smoltification is food availability. During the observation period from 1977 to 1993, two-year-olds were the most numerous group among the downstream-migrating sockeye salmon. Short-term fluctuations in the proportion of one-year-old smolts during downstream migration are attributed to outbreaks of plankton due to the natural fertilization of the lake. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Variation in smoltification age and its determinants in sockeye salmon of Lake Azabach’e

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2000 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1007/BF02759538
Publisher site
See Article on Publisher Site

Abstract

In this paper, we analyze scale samples of sexually mature sockeye salmon from Lake Azabach'e collected over many years and data on the abundance of zooplankton in this lake. For native juvenile sockeye salmon, the major limiting factor of growth and smoltification is food availability. During the observation period from 1977 to 1993, two-year-olds were the most numerous group among the downstream-migrating sockeye salmon. Short-term fluctuations in the proportion of one-year-old smolts during downstream migration are attributed to outbreaks of plankton due to the natural fertilization of the lake.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Nov 18, 2007

References

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