An Investigation of Escaped Rainbow Trout in the Upper River Earn and Loch Earn
نویسندگان
چکیده
منابع مشابه
Growth Parameters of Rainbow trout (Oncorhynchus mykiss) escaped from sea cages in the coast of southern Caspian sea
Rainbow trout is one of the 100 exotic invasive species in the world, and the biological characteristics of evaporated specimens of marine cages on the coast of Mazandaran including sex ratio, length and weight relationship, and growth are necessary. In order to study the rainbow trout growth parameters, 90 specimens of this species were collected from October 2017 to May 2019 from catching bon...
متن کاملStudying some reproduction characteristics of rainbow trout in Beheshtabad River of Chaharmahal and Bakhtiari Province
Rainbow trout (Oncorhynchus mykiss) is an exotic fish in the inland waters of Iran and little is known about this species in Iranian natural waters. In this study, some biological characteristics of rainbow trout such as GSI and absolute and relative fecundity were examined in 355 specimens collected monthly from Beheshtabad River of Chaharmahal and Bakhtiari Province during April 2013 to March...
متن کاملAn investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance
The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. The fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (...
متن کاملAn investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance
The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. The fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (...
متن کاملImpact of rainbow trout (Oncorhynchus mykiss) farm effluents on water physico-chemical parameters of Ryjab River (Kermanshah province)
The impact of rainbow trout farm effluents on water physico-chemical parameters of Ryjab River was investigated. Five stations were considered at different parts of the river. Station 1 located at the headwaters of the river, station 2 after nearly 30 percent of fish farms, station 3 after 60 percent of fish farms, station 4 after the last fish farm and station 5 located one kilometer after the...
متن کامل