| The main factors conditioning the larval development of P. serratus have been studied in the Marine Station at Roscoff. Several types of natural diets have been tested. The nauplii of Artemia salina remain the most practical food. However, it was necessary to verify that a diet of Artemia permits development to a normal mysis. In these experiments, only Artemia originating in California, gave satisfactory results (84.5% viable post-larval shrimps). The most favorable density of larvae during cultivation was between 50 and 100/1. The larvae of P. serratus resisted very wide and sudden variations in salinity. However, when the salinity was <12 ppt, there was 100% mortality. The maximal survival of post-larval shrimp was at 25 ppt. The temp had an... |
