Fecundity of Pink Shrimp, Penaeus Duorarum Burkenroad
Abstract:Fecundity of pink shrimp Penaeus duorarum, defined as the number of developing ovarian ova, and its relation to total length, body weight, and ovary weight were investigated. Specimens for fecundity estimates were collected from the Tortugas grounds, west of Key West in July 1970 and April 1971, and from the Sanibel grounds, west of Ft. Myers, in August 1971 and February 1972. Fecundity was estimated by a combination of gravimetric and volumetric methods. Estimated fecundity ranged from 44,000 to 534,000 ova, based on the regression of fecundity on body weight, where body weight ranged from 10.1 g to 66.8 g. Fecundity increased with size of the animals. The relationship between fecundity and total length was exponential, while the relationships between fecundity and body weight and between fecundity and ovary weight were linear. Body weight was a better predictor of fecundity than total length. The relationship between fecundity and total length and between fecundity and body weight did not differ significantly for the Tortugas and Sanibel specimens. Evidence is presented that suggests multiple spawning occurs in pink shrimp.
Document Type: Research Article
Publication date: 1974-09-01
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