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Effects of Thermocycles on Body Weight Gain and Gonadal Growth in the Goldfish, Carassius auratus
Author(s) -
Spieler Richard E.,
Noeske Teresa A.,
Devlaming Victor,
Meier Albert H.
Publication year - 1977
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(1977)106<440:eotobw>2.0.co;2
Subject(s) - carassius auratus , weight gain , body weight , biology , constant (computer programming) , darkness , zoology , endocrinology , fishery , medicine , fish <actinopterygii> , botany , computer science , programming language
Goldfish subjected to increased temperatures at one of six different times of day had significant differences in weight gain and testicular growth depending on the time of treatment. Depending on the time of day the thermocycle was initiated, weight gain and testicular growth could be either stimulated, inhibited, or equal to that in fishes subjected to constant heat or constant cold. Heat applied during the last 4 h of darkness was particularly conducive to weight gain and testicular growth. The results of this study may have important implications for aquaculture.