Laboratory culture of juvenile stages of the California spiny lobster Panulirus interruptus (Randall) at elevated temperatures |
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| Authors: | Steven A Serfling Richard F Ford |
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| Institution: | Department of Biology, San Diego State University, San Diego, Calif., U.S.A. |
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| Abstract: | Puerulus stage individuals of Panulirus interruptus from coastal waters off San Diego, California, were cultured through juvenile stages at constant temperatures of 22 and 28 °C in closed-system aquaria. In these laboratory trials juveniles exhibited average growth rates of approx. 3.3 mm increase in carapace length (CL) per month at 22 °C, and approximately 4.5 mm per month at 28 °C. These rates, respectively, are about two and three times greater than estimated growth rates of juveniles in nature at ambient southern California ocean temperatures. Accelerated growth at elevated temperatures was associated with increased moulting rates (reduced intermoult periods) rather than with greater increments per moult. Aquaculture of P. interruptus juveniles at elevated temperatures appears feasible, but currently is dependent on locating areas where puerulus or post-puerulus stages can be obtained in quantity without adversely affecting natural populations. |
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