Length–Weight Relationships for Freshwater Fish Species in Küçük Menderes River Basin, Turkey

length-weight relationships of 14 fish species from tajan river, southern caspian sea basin, iran

the length-weight relationships, (lwrs) were calculated for 14 fish species belonging to five families (cyprinidae, cobitidae, nemacheilidae, salmonidae, and gobiidae) collected from the tajan river, north of iran. significant length-weight relationships with high correlation coefficients were found for all species.

Quality Assessment of Edible Fish Species at Flood Basin of Omambala River, South East Nigeria

Background: Food poisoning resulting from microbial and heavy metals pollution is commonplace. These contaminants do not only reduce the nutritional value of the food but are in many cases toxic. In this study, the proximate composition, bacterial quality and some heavy metals (Cd, Pb, Hg) concentration in three common fish species (Claria gariepinus, Heterobrachus bidorsalis and Channa obscura...

Behavioural thermoregulation in two freshwater fish species.

In the presence of a vertical thermal gradient, juvenile three-spined sticklebacks Gasterosteus aculeatus and minnows Phoxinus phoxinus positioned themselves higher in the water column compared with adult conspecifics. This result was consistent regardless of whether age cohorts were tested separately or together. Furthermore, juveniles but not adult fishes positioned themselves higher in water...

Determination of some heavy metal levels in three freshwater fish in Keban Dam Lake (Turkey) for public consumption

The accumulation of iron, zinc, copper and cobalt in the muscles of three freshwater fish (Cyprinus carpio, Squalius cephalus and Capoeta umbla) from Keban Dam Lake (Turkey) were investigated between September 2009 and April 2010. The concentration of heavy metals were found as Zn>Fe>Cu>Cd respectively. A positive relationship was found between heavy metal levels and fish size. The levels of al...

Short communication:Determination of some heavy metal levels in three freshwater fish in Keban Dam Lake (Turkey) for public consumption