Animals use a range of sensory cues for finding food, avoiding predators and choosing mates. In this regard, the aquatic environment is particularly suitable for the use of olfactory and other chemical cues. Nevertheless, mate choice research, even on aquatic organisms, has focused on visual signals, while chemical cues relevant in sexual selection have been assumed to be 'intrinsic' excretions...

fungous infection to saprolegnia is the most important difficulties at the egg of acipenser persicus which is controlled by malachite green as an effective structure . because of the effects and adverse imposition on human and various fish, its use has been avoided in most of the world more than two decades approximately. this study was aimed to compare the antifungal effect of zinc oxid nano p...

silver nanoparticles (agnps) are known to have bactericidal and fungicidal effects. since, there is few information available on the interaction of colloidal nanosilver with fish pathogens. hence, the current study investigated the effects of colloidal agnps on the in vitro growth of the fish pathogen saprolegnia sp.. before the experiments, various important properties of agnps were well-chara...

Among 600 bunnei fishes transferred from Qurna marshes to fish ponds at Basrah University/Marine Science Center, 211 were infected with saprolegniasis during the period January March, 2005 constituting a percentage of infection 35.1% which was diagnosed by its clinical features and direct examination 10% KOH solution culture. The cultutred fungus Saprolegnia parasitica.

Saprolegniosis, the disease caused by Saprolegnia sp., results in considerable economic losses in aquaculture. Current control methods are inadequate, as they are either largely ineffective or present environmental and fish health concerns. Vaccination of fish presents an attractive alternative to these control methods. Therefore we set out to identify suitable antigens that could help generate...

N.M. Wood1; J.D. D'Amore2; S.L. Jones3; D.F. Sittig4; R.B. Ness1 1University of Texas School of Public Health, Houston, Texas, United States; 2Diameter Health, Newton, Massachusetts, United States; 3Houston Methodist Hospital, Surgery, Houston, Texas, United States; 4University of Texas School of Biomedical Informatics and the UT-Memorial Hermann Center for Healthcare Quality & Safety, Houston,...

Coinciding with a population decline in the invasive spiny-cheek crayfi sh Orconectes limosus in Lake Constance, SW Germany, we found crayfi sh specimens with a fungus-like Aufwuchs which after DNA-isolation and sequencing was identifi ed as consisting of a set of previously undescribed Saprolegnia species. This fi nding may have implications for the farming and conservation of native crayfi sh...

Oomycetes in the class Saprolegniomycetidae of the Eukaryotic kingdom Stramenopila have evolved as severe pathogens of amphibians, crustaceans, fish and insects, resulting in major losses in aquaculture and damage to aquatic ecosystems. We have sequenced the 63 Mb genome of the fresh water fish pathogen, Saprolegnia parasitica. Approximately 1/3 of the assembled genome exhibits loss of heterozy...