DEVELOPMENT OF SEAWATER ADAPTATION IN PINK SALMON, ONCORHYNCHUS-GORBUSCHA, DURING DOWNSTREAM MIGRATION - RELATIONSHIPS TO TEMPERATURE AND RESIDUAL YOLK

被引：4
|
作者：
VARNAVSKY, VS [1 ]
KINAS, NM [1 ]
ROSTOMOVA, SA [1 ]
机构：
[1] PACIFIC RES INST FISHES & OCEANOGR,KAMCHATKA BRANCH,PETROPAVLOVSK KAMC 683000,RUSSIA
来源：
ENVIRONMENTAL BIOLOGY OF FISHES | 1993年 / 36卷 / 04期
关键词：
SEAWATER ADAPTABILITY; MUSCLE SODIUM LEVEL; CHALLENGE TEST; 96-H LC50 TEST; WEIGHT LOSS; PISCES; SALMONIDAE;
D O I：
10.1007/BF00012415
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Seawater adaptability of wild pink salmon, Oncorhynchus gorbuscha, alevins was investigated using 96 h LC50 test, muscle sodium level and weight loss tests. Five temperature (2, 6, 9, 13 and 16-degrees-C) and two yolk groups were analysed during the beginning, the middle and the end of downstream migration. Both temperature and amount of residual yolk affected seawater adaptability. The computation of muscle sodium levels and weight loss after a short term (3-12 h) seawater challenge test may be a convenient method to estimate the seawater adaptability of fish too small to allow analysis of blood sodium concentration.
引用
收藏
页码：373 / 379
页数：7
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