The relationship between spawning stock and recruitment in penaeid shrimp fisheries has been questioned because they exhibit unique characteristics with respect to population dynamics and fisheries. This study used meta-analyses to test the null hypothesis that recruitment is a series of random, independent events based on the penaeid shrimp stocks found in published sources. Both the derivativ...

In arthropods, a group of peptides possessing a -Y((SO3H))GHM/LRFamide carboxy-terminal motif have been collectively termed the sulfakinins. Sulfakinin isoforms have been identified from numerous insect species. In contrast, members of this peptide family have thus far been isolated from just two crustaceans, the penaeid shrimp Penaeus monodon and Litopenaeus vannamei. Here, we report the ident...

Examined digestive tracts of the red drum in Mississippi Sound contained mostly decapod crustaceans. Crustaceans accounted for 34 of 59 encountered taxa, more than reported from any other region. Nevertheless, the general diet for 104 fish with food contents out of the 107 examined is similar to that reported for red drum in several other studies from other areas. In addition to crustaceans, fi...

Aquaculture is the fastest growing food sector globally and is established itself as high protein resource to fulfill the food demand since the natural resources exhibits over exploitation. But, presently, the biggest problem faced by the aquaculture industry worldwide is diseases caused due to various biological and non-biological agents. Among the groups of microorganisms that cause serious l...

The effect of salinity in survival, growth and osmotic capacity of juvenile Farfantepenaeus brasiliensis was determined. Survival was not affected by salinities from 15 to 35‰ during 96 h exposure periods. Shrimps exposed to 5 and 10‰ were noticeably affected by salinity with a survival of 0 and 48% after 96 h, respectively. Lethal salinity for 50% of the individuals in 96 h 21 (LS , 96 h) at 2...

Antilipopolysaccharide factors (ALFs) have been described as highly cationic polypeptides with a broad spectrum of potent antimicrobial activities. In addition, ALFs have been shown to recognize LPS, a major component of the Gram-negative bacteria cell wall, through conserved amino acid residues exposed in the four-stranded β-sheet of their three dimensional structure. In penaeid shrimp, ALFs f...

The spionid polychaete Polydora nuchalis was collected from the mud bottoms of penaeid shrimp and oyster culture ponds at two aquaculture farms on Oahu, Hawaii. The polychaetes formed masses of mud tubes , which contained egg capsules and early and late larval stages. Polydora nuchalis is not a shell-boring worm like the congener P. websteri that infects commercial shellfish, but is considered ...

Artemesialonginaris is a marine shrimp endemic to the southwestern Atlantic and distributed from Atafona, Rio de Janeiro (Brazil) to Rawson, Chubut (Argentina). In recent years, this species has become an important target of the commercial fishery as a consequence of the decline in the fishery of more traditional and profitable marine shrimps. In addition, phenotypic variations have been docume...