The Scientific World Journal

The Scientific World Journal / 2002 / Article

Short Communication | Open Access

Volume 2 |Article ID 425247 | 6 pages |

Salinity Preference in Hatchery-Reared Juvenile Red Drum

Received05 Mar 2002
Revised11 Apr 2002
Accepted17 Apr 2002


Juvenile red drum (Sciaenops ocellatus), reared in either 15- or 30-ppt salinity seawater, were tested to determine whether they develop preference for the salinity of the water in which they were cultured. In a two-choice test, large- and small-sized juvenile red drum chose the raceway that matched the seawater in which they were cultured over the other salinity. Additional large and small fish reared in either 15- or 30-ppt salinity water were also tested following a 4-h acclimation period that simulated the duration of transport time from the hatchery to a release site. These fish also showed preference for their original culture salinity. This observed salinity preference in juvenile red drum has implications with respect to movement or residency of hatchery-reared juvenile red drum out-planted into natural coastal systems.

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