Sexual maturity, temporal reproductive pattern, and recruitment of juveniles were examined for the penaeoid shrimp Artemesia longinaris sampled for five and a half years in a tropical locality off the coast of São Paulo (23o S), Brazil. Monthly samples were taken from January 1998 to June 2003 at depths between 5 and 45 m. Ovarian maturity was used to examine breeding in adult females. Recruitm...

Cryptopenaeus crosnieri, a new species of solenocerid shrimp, is described from four specimens collected in Australian waters. It differs from C. catherinae in exhibiting neither a notch nor a depression on the postrostral carina, in having a longer scaphocerite, and in lacking an ischial spine on the third pereopod. Also, the thelycum exhibits a pair of small, flat to weakly convex plates, ins...

Abstract Ammonia is one of the major environmental pollutants in aquatic system and poses a great threat to shrimp. In this study, we compared differences metabolic enzymes mRNA expression unfolded protein response (UPR)-related genes between ammonia-resistant (LV-AT) ammonia-sensitive (LV-AS) strains Penaeus vannamei , aiming investigate different tolerance mechanisms two extreme underlying am...