Open AccessFEEDING ECOLOGY OF HYBRID STRIPED BASS ( Morone saxatilis x M. chrysops ) IN CULTURE PONDS
Author(s) -
Woods L. Curry,
Lockwood Jeffrey C.,
Kerby J. Howard,
Huish Melvin T.
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.tb00188.x
Subject(s) - zooplankton , biology , bosmina , cyclops , morone , daphnia , bass (fish) , fishery , predation , cladocera , ecology , plankton , trophic level , zoology
A study of the relative importance of food organisms utilized by hybrid striped bass ( Morone saxatilis x M. chrysops ) was conducted at the Dennis Wildlife Center in Bonneau, South Carolina. Objectives were to determine the food items of major importance and to document the availability, utilization and preference of zooplankton by one‐ to five‐week‐old hybrid striped bass. We collected twenty‐five plankton samples and 300 hybrids from each of five 0.2 ha culture ponds. The dominant taxa of net zooplankton in decreasing order of occurrence were Bosmina, Daphnia and Cyclopidae. Dominant genera of zooplankton in hybrid stomachs in decreasing order of occurrence were Cyclops, Daphnia and Bosmina . Selectivity indices calculated for the three most important taxa of zooplankton showed that hybrid striped bass preferentially selected Cyclops and Daphnia and avoided Bosmina . Insect larvae and ostracods were other food items found in many stomachs.