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Preliminary results on growth and feeding of wild‐caught young goldblotch grouper, Epinephelus costae , in captivity
Author(s) -
Glamuzina B.,
Tutman P.,
Conides A. J.,
Kožul V.,
Glavić N.,
Bolotin J.,
Lučić D,
Onofri V.,
Skaramuca B.
Publication year - 2003
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1046/j.1439-0426.2003.00446.x
Subject(s) - grouper , captivity , biology , zoology , body weight , epinephelus , fishery , growth rate , food intake , fish <actinopterygii> , endocrinology , geometry , mathematics
Summary Growth, food intake, feed conversion, survival, and behaviour of wild‐caught goldblotch grouper, Epinephelus costae Steindachner, (initial weight=103.04 ± 8.27g) were evaluated when reared in captivity. Average weight gains ranged between 0.106 and 0.278 g day −1 , while corresponding gains in length ranged between 0.005 and 0.018 cm day −1 . Average daily growth rate was between 0.075 and 0.232% body weight day −1 (overall 0.141 ± 0.08% bw/day). Daily rate of feeding was estimated to be between 0.299 and 0.418% bw day −1 (overall 0.365 ± 0.09% bw day −1 ). Food conversion ratio (FCR) ranged between 0.21 and 0.77 (overall FCR=0.423). Food intake was dependent on water temperature.