Open AccessPRODUCTION CHARACTERISTICS OF STRIPED BASS ( Morone saxatilis ) AND F 1 , F 2 HYBRIDS ( M. saxatilis AND M. chrysops ) REARED IN INTENSIVE TANK SYSTEMS 1
Author(s) -
Smith Theodore I. J.,
Jenkins Wallace E.,
Snevel James F.
Publication year - 1985
Publication title -
journal of the world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0735-0147
DOI - 10.1111/j.1749-7345.1985.tb00187.x
Subject(s) - bass (fish) , morone , biology , fishery , morone saxatilis , hybrid , aquaculture , zoology , agronomy , fish <actinopterygii>
The aquaculture characteristics of striped bass ( Morone saxatilis ) and its white bass ( M. chrysops ) hybrids were compared in two intensive tank culture studies which utilized recirculated brackish water. In the first study, striped bass and F 1 hybrids (original cross) exhibited similar growth and survival rates even though the F 1 hybrids were stocked at a density (65 fish/m 3 ) 93% greater than the striped bass. By day 219, striped bass had grown from 30 g to 593 g while F 1 hybrid bass grew from 47 g to 636 g. Standing crops at this time were 15.6 k9/m 3 , and survival was 74.6% and 78.4% for the striped bass and F 1 hybrid bass, respectively. By day 302, F 1 hybrid bass had grown to 835 g and standing crop was 43.1 kg/m 3 . The second study demnstrated that F 1 hybrid bass (reciprocal cross) grew more rapidly than either striped bass or F2 hybrid bass (F 1 original x F 1 original) when reared at the same density (31 fish/m 3 ). Further, survival of the F 1 hybrid bass was 100% at conclusion of this 287‐day study in spite of intensive sampling every 21 days. Individual growth variation was substantial among the F 2 hybrid bass and size frequency distribution at harvest was broad and non‐modal. In contrast, striped bass and F 1 hybrid bass exhibited more uniform growth and size frequency distributions at harvest approximated normal distributions. At completion of this study mean sizes of the F 1 , F 2 hybrid bass, and striped bass were 506.6, 346.7 and 289.3 9, respectively. In summary, F 1 hybrid ( M. saxatilis and M. chrysops ) bass possess a number of desirable characteristics which should make them attractive for aquaculture development.