Invasive crayfish (family Cambaridae) displace native species and alter aquatic habitat, community structure, ecosystem function. We evaluated whether chemical control can be a reliable agent for to ensure that shipments from fish hatcheries did not result in new infestations of invasive crayfish. A series acute (≤1 h) toxicity tests were conducted evaluate the cypermethrin pyrethrin crayfish, ...

Early detection of Pacific oyster spat infected with ostreid herpesvirus 1 (OsHV-1) could prevent introduction of OsHV-1-infected individuals into farming areas or onshore rearing facilities, thus reducing the risk of infection of naïve oysters in such production systems. Experiments were conducted on several hundred oyster spat provided by producers in order to examine whether early rearing pr...

Goose astrovirus (GoAstV) has frequently been isolated in China since it was first identified as the etiological agent of visceral gout goslings 2017. However, actual prevalence GoAstV infection and its economic impact on commercial goose production remain poorly characterized. Here, virus detection serological testing were conducted to determine extent flocks. We detected RNA 2% (6/300) dead-i...

Three strains (VPAP16, VPAP18 and VPAP23 strains) were isolated as the most predominant organisms from 3 different episodes of massive mortalities of larval cultures of the Chilean scallop Argopecten purpuratus occurred in different commercial hatcheries located in northern Chile. The main aims of this study were to identify the pathogenic strains and investigate their pathogenic activity. Base...

 Contribution change of factor costs analysis may help managers in decision making and in adjusting to changes. Over the last two decades, production and enhancement of kutum fingerlings have increased in Iran, reaching to more than 229 million fingerlings by 2005, but declined to 187 million from 2005 to 2008. Over the years 2002-2006, a study of fingerling production costs for kutum fish was ...

Abstract Hatchery production and fisheries stocking is a widespread high profile management practice because it allows recreational to continue in threatened species. Human-mediated transfer of fish across the geographic boundaries intraspecies lineages or closely related species can cause introgression occasionally outbreeding depression. Hybridization be difficult detect due limited morpholog...

Diseases represent a major threat for the bivalve production industry. Their control relies on biosecurity measures to prevent their introduction and limit spread. When maintained in hatcheries, nurseries depuration centers, bivalves can become infected from surrounding water might release pathogens through wastewater effluents. A effort was done controlling safety of human consumption, but, ot...