During surveys of parasites of the whitemouth croaker Micropogonias furnieri (Desmarest) and the mullet Mugil platanus Günther from Samborombón Bay, Argentina, Trichodina puytoraci, T. lepsii, T. jadranica, T. murmanica, Diparitella simplex and Trichodina scalensis sp. n. were morphologically studied. Taxonomic and morphometric data for these trichodinids based on dry silver nitrate-impregnated...

As the Chinese national fish, large yellow croaker (Pseudosciaena crocea) can generate intermittent sounds. In this study, the acoustic characteristics of the sound signals recorded from three groups of net-cage-cultured large yellow croaker at different ages (7-8-month old, 13-15-month old, and 3-years old) were investigated. The exponential oscillation function derived from the speech signal ...

Even with global support for tiger (Panthera tigris) conservation their survival is threatened by poaching, habitat loss and isolation. Currently about 3,000 wild tigers persist in small fragmented populations within seven percent of their historic range. Identifying and securing habitat linkages that connect source populations for maintaining landscape-level gene flow is an important long-term...

Paraná, Yungas and Chaco Serrano ecoregions are among the most species-rich terrestrial habitats at higher latitude. However, the information for tiger moths, one of the most speciose groups of moths, is unknown in these ecoregions. In this study, we assess their species richness and composition in all three of these ecoregions. Also we investigated whether the species composition of tiger moth...

this experiment was conducted to increase the resistance of tiger barb (capoeta tetrazona ) against environmental stress by feeding brackish water gammarus sp. powder as supplementary diet in three levels (25%, 50% and 75%) and three replicates pe group compared to control group for 60 days. fishes was fed with 4 diet treatment containea of: 100% artificial diet (control group), 25% brakish wat...

the concentrations of cadmium, nickel, lead, and zinc in the four commercial species; silver pomfret(pampus argenteus), king mackerel. (sc0l1l,beromorous commerson), (pomaclasys kaakan), and green tiger prawns (penaeus semisulcatus) were determined in the persian gulf all were collected from the bushir coast. the samples were digested by ultrapure .nitric acid, and then analyzed using the atomi...