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EFFECTS OF SALINITY ON PREFERRED AND LETHAL TEMPERATURES OF THE BLACKCHIN TILAPIA, SARATHERODON MELANOTHERON 1
Author(s) -
Stauffer Jay R.,
Vann David K.,
Hocutt Charles H.
Publication year - 1984
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1984.tb04760.x
Subject(s) - acclimatization , salinity , tilapia , fish <actinopterygii> , freshwater fish , biology , range (aeronautics) , chemistry , environmental science , fishery , zoology , ecology , materials science , composite material
Acclimation to varying salinities did not affect the preferred temperature of Saratherodon melanotheron , which had a final preferred temperature of 33.5 C. However, fish acclimated to 25 C and 0, 15, and 30 o/oo salinities had lower lethal temperatures of 15, 13, and 15 C, respectively, and an upper lethal temperature of 37 C. The thermal zone of tolerance for fish acclimated in freshwater was 17‐35 C, and was not dependent upon acclimation temperatures. Data suggest this species could expand its range in North America.