The two economically important shrimp species in Bangladesh are the tiger shrimp, Penaeus monodon, and brown Metapenaeus monoceros. However, a continuous decline landing of these from industrial trawling made it critical to assess their stock biomass status explore response present degree removal. Given minimum data requirement robustness, this study employed depletion-based reduction analysis ...

MicroRNAs (miRNAs) are known to play an important role in regulating both adaptive and innate immunity. Pacific white shrimp (Litopenaeus vannamei) is the most widely farmed crustacean species in the world. However, little is known about the role miRNAs play in shrimp immunity. To understand the impact of viral infection on miRNA expression in shrimp, we used high-throughput sequencing technolo...

abstractthe monitoring of the management of vannamei shrimp farms in the gomishan shrimp site in the best way and to its development. the objectives of the project were the calculation of growth indices, food conversion ratio.the final production of vannamei, benefit-cost or gross benefit of each farm.this study carried out in in 1391( 2012 ).data collection done through questionaries personall...

Decapod crustaceans occupy various aquatic habitats. In freshwater they are osmoregulators, while marine species are typically osmoconformers. Freshwater crustaceans are derived from marine ancestors. The hypothesis tested here was that osmoregulators, which can rely on salt transport by interface epithelia to prevent extracellular disturbance, would have a lower capacity of tissue water regula...

Eyestalk ablation is the most common procedure to induce gonadic maturation in commercial hatcheries of penaeid shrimp. In addition to reproduction, other physiological and metabolic processes are affected by removal of the X-organ sinus gland complex located in the eyestalk. In this study, the effect of unilateral and bilateral eyestalk ablation on the concentration of several hemolymph metabo...

A small collection of 159 specimens of stenopodidean shrimps from New Caledonian waters has been studied and found to represent 13 species in 6 genera, adding 8 new species of stenopodideans to the Southwest Pacific fauna. Two new species are recognized, Richardina crosnieri n. sp. and Spongiocaris neocaledonensis n. sp. Two species of Odontozona are redescribed. Illustrations are provided for ...

Numerous studies have been focused on natural anticarcinogenic agents. Many antioxidants have been identified as anticarcinogens. Antimutagens have also been proposed as cancer chemopreventive agents. The use of natural products as anticancer has a long history that began with traditional medicine. The aim of this study was to evaluate cytotoxicity and antioxidant activity of twenty-three plant...

The Early Packet Discard (EPD) with per-VC Queueing mechanism is a packet discard scheme proposed in the literature to improve EPD performance in terms of fairness. This paper develops an analytical approximation model for evaluating the performance of the mechanism at a single node. As illustrated in the paper by numerical examples, the model allows the study of the evolution of performance me...