EFFECT OF TEMPERATURE, SEASON, AND FISH SIZE ON ACUTE LETHALITY OF SUSPENDED SEDIMENTS TO COHO SALMON (ONCORHYNCHUS-KISUTCH)

被引：48

作者：

SERVIZI, JA

MARTENS, DW

机构：

[1] Dept of Fisheries & Oceans, Cultus Lake Salmon Research Lab., Cultus Lake

来源：

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 1991年 / 48卷 / 03期

关键词：

D O I：

10.1139/f91-063

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Tolerance of underyearling coho salmon (Oncorhynchus kisutch) to Fraser River suspended sediments (SS) at 7-degrees-C was independent of season of the year. However, coho of 0.52 g (4.0 cm) possessed only 35% of the tolerance of larger specimens. Tolerance to SS was temperature dependent, with 96-h LC50 at 1 and 18-degrees-C being 47 and 33%, respectively, of the value at 7-degrees-C. Tolerance was further reduced among underyearling coho which were later found to have a viral kidney infection. Cough reflex, oxygen transfer, oxygen saturation levels, metabolic rates, and capacity to do work all probably affect the relationship between SS tolerance and temperature.

引用

页码：493 / 497

页数：5

共 18 条

[1]

[Anonymous], 1985, STANDARD METHODS EXA

[2] CHANGES IN TERRITORIAL, GILL-FLARING, AND FEEDING-BEHAVIOR IN JUVENILE COHO SALMON (ONCORHYNCHUS-KISUTCH) FOLLOWING SHORT-TERM PULSES OF SUSPENDED SEDIMENT [J].