The objective of our study was to explain the histopathological changes of monodon baculovirus (MBV) in hepatopancreas and midgut tissues of the cultured Penaeus vannamei. Five-hundred and forty juvenile of P. vannamei with average size of 7.99±0.54 g and 3600 post larvae 10-15 were distributed to 18 glass aquariums (50×50×60cm) with 100L well aerated water per each aquarium as water borne MBV ...

in this study the mixture of commercial and autochthonous bacillus subtilis and bacillus licheniformis isolated from gut of huso huso fingerling were used for enhancement of body composition and feeding parameters of whiteleg shrimp (litopenaeus vannamei). the experiment was carried out in completely randomized design. three replicates for each treatments and control group were used. the post l...

Recent studies of the larvae of coral-reef fishes reveal that these tiny vertebrates possess remarkable swimming capabilities, as well as the ability to orient to olfactory, auditory, and visual cues. While navigation according to reef-generated chemicals and sounds can significantly affect dispersal, the effect is limited to the vicinity of the reef. Effective long-distance navigation requires...

Fish oil is used in the production of feed for cultured fish owing to its high polyunsaturated fatty acid content (PUFA). The over-exploitation of fisheries and events like "El Niño" are reducing the fish oil supply. Some marine microorganisms are considered potentially as alternative fatty acid sources. This study assesses a strain of Rhodotorula sp. (strain CNYC4007; 27% docosahexaenoic acid ...

Experiments were conducted with the aim of defining the optimal culture conditions for Psammechinus miliaris larvae. Larval response to varying food rations of the microalgae, Pleurocrysis elongata, was assessed by recording the morphological parameters of developing Ž y1. larvae. Larvae on a high ration 4000 cells ml showed an extreme reduction in postoral arm length and were unable to maintai...

  Khark and Kharko Islands are located at far northern point of fringing coral reefs in the Iranian coast of the Persian Gulf. These coralline are the habitats of the wildlife refuge with total area of 2400ha and located in the territory of Bushehr province. The present study was carried out from July 2006 to June 2007 over 12 stations. Sampling was conducted obliquely from bottom using Bongo-n...

Synechocystis MCCB 114 and 115 were segregated as putative probionts for shrimp larvae from a collection of 54 cyanobacterial cultures enriched from seawater. On feeding Penaeus monodon post-larvae with the cyanobacteria, the generic diversity of the intestinal bacterial flora could be enhanced with substantial reduction or total absence of Vibrio spp. A significant difference (p < 0.001) in th...

Chemical cues induce metamorphosis for the larvae of many benthic marine invertebrate species. These cues help to place organisms into habitats that will allow for rapid growth and increased reproductive success. This study was designed to examine the correspondence between induction of metamorphosis and post-metamorphic success in the deposit feeding polychaete Capitella sp. I. Larvae were off...

Hyphessobrycon eques is a famous fish for ornamental fish market and aquarium. They are inhabit in regions of Amazon and Paraguay River basin. Serpae fishs were investigated 2-3 males are chased to female, and then males attempted to simulate the females abdomen. After fertilization, eggs were kept in incubators at 28°C. The fertilized eggs had adhesive and demesal characteristics and had a mea...