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The survival of smolts of salmon Salmo salar L. at low concentrations of dissolved oxygen
Author(s) -
Alabaster J. S.,
Shurben D. G.,
Mallett M. J.
Publication year - 1979
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.1095-8649.1979.tb03567.x
Subject(s) - salmo , biology , salinity , fishery , fish <actinopterygii> , zoology , oxygen , fresh water , seawater , ecology , chemistry , organic chemistry
The survival of Atlantic salmon smolts on sudden exposure to low constant concentrations of dissolved oxygen (DO) has been measured under laboratory conditions; the 3‐d LC50 is about 3 mg l −1 in freshwater and about 2.5 mg l −1 in 30% and 80%‘sea water’, even for fish acclimated for several days to low concentrations of DO and high salinity; median threshold concentrations of DO are probably close to 3.3 and 2.6 mg l −1 respectively.