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Volume 43 - Number 3 - 2008

Morphometric and reproductive observations of the shrimp Pleoticus muelleri Bate, 1888 from commercial ships off Rawson Port, Argentina

Ana E. Ruiz1 y Luis F. Mendia1, 2


1Facultad de Ciencias Naturales,Universidad Nacional de la Patagonia San Juan Bosco, Sede Trelew. Julio A. Roca 115, U9100AQC Trelew, Chubut, Argentina
2Secretaría de Pesca de la Provincia del Chubut. Belgrano 778, 9103, Rawson, Chubut, Argentina



The shrimp Pleoticus muelleri is the most important species in the crustacean fishery off Patagonian Argentine Sea. Morphometric and reproductive aspects of 1,564 specimens from Rawson Port zone, South Argentine, were analyzed. The shrimps were taken approximately 12 nm by the trawling coastal fleet, between January and April 2001. From the total sample, only 3.9% were juveniles. Mature and impregnated females were mostly found in January (86.27%) and the lowest peak was in March. Immature female shrimps were caught in only in April. These results show the importance to characterize the shrimps from landing samples, to the fishery management


Key words: Crustacea, Patagonian Argentine Sea




1Laboratorio de Zooplancton, Instituto de Ciencias del Mar y Limnología,Universidad Nacional Autónoma de México. A. P. 70-305, 04510 México, D. F. México
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