This paper presents applications to several shrimp stocks of a new, computer-based set of methods for the detailed analysis of length-frequency data. These applications include the objective estimation of growth parameters, including seasonally oscillating growth, and of total mortality as estimated from length-converted catch curves and from mean lengths. A method for obtaining estimates of na...

this study investigates the effects of garlic extract on salinity and ph stress resistance of white leg shrimp post larvae (0.1±0.01 g). the experiment was carried out on the basis of completely random model with 5 dietary treatments which include 0 (control treatment), 1cc (treatment 1), 2cc (treatment 2), 4cc (treatment 3) and 8cc (treatment 4) per 100g food in triplicate. 1500 shrimps were r...

backgrounds and objectives: to obtain information about aflatoxigenicity of isolated aspergillus flavus strains from shrimps. material and methods: forty - three isolates of aspergillus flavus from cultured green tiger shrimps of persian gulf were examined for their ability to produce aflatoxins. initially two media; aflatoxin producing ability medium and coconut agar medium were used to detect...

Crustaceans have diversified sexual systems, incorporating various reproductive modalities such as gonochorism and a wide variety of hermaphroditism. In particular, the coral reef- dwelling caridean shrimps, living in symbiosis with other marine invertebrates, developed unusual systems that given origin to range social including highly advanced eusociality. Protandric hermaphroditism, common am...

An effective approach to program understanding involves browsing, exploring, and creating views that document software structures at different levels of abstraction. While exploring the myriad of relationships in a multi-million line legacy system, one can easily loose context. One approach to alleviate this problem is to visualize these structures using jsheye techniques. This paper introduces...

Effect of different concentrations hypotaurine (HTU) on melanosis and quality shrimps during 10 d storage in ice were studied. During refrigeration, the total plate count volatile basic nitrogen treated with 20 g/L HTU lowest, hardness microstructure best. Moreover, score melanoses, pH bile acid also low. Sensory evaluation showed that treatment could make shelf life 3-4 days longer compared co...

We rated some reproductive characteristics of white shrimp Litopenaeus vannamei (Boone, 1931) males using 46 farmed individuals (weighing 21.42 +/- 0.56 g) and 40 wild individuals (weighing 36.10 +/- 0.72 g). In farmed shrimps, spermatophore mean weight was 8.94 +/- 0.51 mg; total mean sperm count was 3.90 +/- 0.27 x 10(6) in each spermatophore; and mean percentage of normal sperm was 86.9 +/- ...

the introduction of l. vannamei to iran was initiated when high mortality occurred in shrimp farms of abadan in  2002 then in bushehr during summer of 2004.. inspection of l. vannamei for infectious agents , specially virus and  bacteria and relationship between them were the main objectives of this study. therefore about 240 samples consisting  of shrimps of l. vannamei were collected from far...

Abstract The effects of banana shrimp Fenneropenaeus merguiensis stocking density on water quality, growth performance, survival rate and body composition was assessed in a biofloc system with limited exchange. study conducted for 32 days an average larvae weight 10 ± 0.85 mg fiberglass tanks containing 120 L at four densities. Five experimental treatments consisted control (density 1000 shrimp...