Effect of Dietary Carotenoids on Argentine Red Shrimp Broodstock

FENUCCI JORGE; PISANI EMILIANO; DIAZ ANA CRISTINA; VELURTAS SUSANA

WORLD AQUACULTURE

World Aquaculture Magazine

Año: 2015 vol. 46 p. 57 - 60

1041-5602

The Argentine red shrimp Pleoticus muelleri (Fig. 1) is an open-thelycum penaeid shrimp species that occurs in cold temperate waters along the South American coast from Rio de Janeiro, Brazil (22°S) to Santa Cruz, Argentina (50°S). The complete life cycle takes place in the sea, without the shrimp entering coastal estuaries, although a clear migration occurs between shallow waters and those of greater depth where spawning takes place. Adults occupy mid-water and benthic habitats, associated with mud and fine sand substrates in the subtidal zone, at depths ranging from 3 to 100 m. The dietary feeding approach of this species can be described as omnivorous.The regions of greatest abundance occur at temperatures from 6 to 23 C and salinities between 31.5 and 33.5 g/L. According to the total declared catches for 2001-2011, fishery yields of this species were maximum in 2001 and 2011 at 80,000 t and minimum in 2005 at almost 7,000 t (Fig. 2). Males can reach 50 g and females 90 g. Spawning capacity in captivity can reach over 360,000 eggs per female (Díaz and Fenucci 2004).The aquaculture group from the National University of Mar del Plata has been working on different aspects of the biology, nutrition, maturation, large-scale larval culture and grow-out of Argentine red shrimp. This species has garnered great interest because of its potential use in aquaculture in temperate areas.