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The Effect of Temperature on the Rate of Development and Survival of Alewife Eggs and Larvae
Author(s) -
Edsall Thomas A.
Publication year - 1970
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1970)99<376:teotot>2.0.co;2
Subject(s) - hatching , alewife , incubation , zoology , larva , biology , egg incubation , incubation period , fish <actinopterygii> , ecology , fishery , biochemistry
Eggs from Lake Michigan alewives (Alosa pseudoharengus) were incubated at 79 different temperatures from 42.1 to 87.0 F. Hatching occurred at 44.4–84.9 F and was optimum (38% hatched) at about 64 F. Incubation time varied from 15 days at 45 F to 3.7 days at 70 F and 2.1 days at 84 F. Time from start to finish of hatching ranged from 13 days at about 46 F to 2–3 days at 68–70 F and 1–2 days at 80–84 F. Survival of unfed larvae held at incubation temperatures increased from 3.8 days at 51 F to 7.6 days at 58–59 F and then decreased to 2.4 days at 80–82 F.