Hemocyanin sequences allineament shows the presence of highly invariant regions especially in the active site and in the tight intersubunits interaction sites. Comparing the aminoacids in contact regions between monomers is possible to interpret the stability of hexamers.

Crabs belonging to the family Grapsidae are possibly one of the most important components of the fauna of mangrove forests globally, in part because of their influence in nutrient cycling by feeding on litterfall. This study investigated spatial and temporal patterns in relative numbers of 11 grapsid species in northern Australian mangrove forests. The results indicated that Perisesarma spp., N...

Methods The research was carried out in 86 patients treated in the Outpatients Clinic of Allergic Diseases. Every patient was interviewed for allergy history and family history of diseases. Every patient had: 1. Prick by prick (PbP) for seafood allergens (squid Illex argentinus and “Black tiger” shrimps Penaeus monodon, octopus Octopus vulgaris, moules Mytilus edulis ). 2. Skin prick test (SPT)...

Single intramuscular injections of aflatoxin B1 into the tail muscle of Penaeus stylirostris produced 24- and 96-h median lethal doses of 100.5 (78.3 to 129.0) and 49.5 (29.8 to 82.3) mg/kg, respectively. A toxicity curve showed no threshold at the levels tested. The mortality response in a feeding study with P. vannamei was not dose dependent, but tissue and organ damage were similar to that s...

The banana prawn (Fenneropenaeus merguiensis) is a valuable in the worldwide market. However, cultivation of this species limited owing to difficulty culture management and knowledge reproduction. Therefore, we studied gene expression molecular mechanisms involved oogenesis for elucidating ovarian germ cell development prawns. tissue-specific distribution certain genes identified from previous ...