Open AccessGrowth of Tilapia aurea in Seawater Cages
Author(s) -
McGeachin Robert B.,
Wicklund Robert I.,
Olla Bori L.,
Winton James R.
Publication year - 1987
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.1987.tb00415.x
Subject(s) - biology , tilapia , seawater , stocking , cage , zoology , salinity , fishery , fish <actinopterygii> , growth rate , ecology , geometry , mathematics , combinatorics
Fingerling Tilapia aurea were reared for 90 days in three 1.0 m 3 floating cages in seawater (36 ppt) at Lee Stocking Island, Bahamas. Fish stocking density (100, 200 and 400 fish/m 3 ) apparently did not affect growth rate but it appears salinity inhibited growth. Daily weight gain and specific growth rate (G) averaged 0.34 g/day and l.08%/day, respectively, for Tilapia aurea fingerlings. Infection of the Tilapia aurea by Bacillus sp. was associated with a significant number of mortalities. The relatively low growth rate and the high incidence of disease and mortality of Tilapita aures in seawater indicate that it may not be a good candidate for cage culture in full‐strength seawater.