Notes on the biology of penaeid shrimp at Gizan, Red Sea

الملخص EN

Shrimp species of Gizan trawl fishing area were determined by commercial catch sampling from October 1985 to September 1986.

Penaeus semisulcatus and Metapenaeus monoceros are the main species in the shrimp fishery.

Analysis of length frequency data of females of these two species together with percentages of females with developed ovaries show that both species have a prolonged spawning season with no trace of seasonal peaks.

Remedy of fisheries problems related to overfishing is possible, but remedy of problems related to deterioration of nursery grounds is very difficult.