An imminent threat to indigenous freshwater ichthyofauna is the introduction of alien fishes that can alter behavior, population dynamics and native community structure. Thus, it necessary understand their feeding behaviour avoid any unwanted incalculable loss. At sampling site, Head Baloki habits both (L. calbasu, C. catla, L. rohita mrigala) (H. nobilis, H. molitrix, carpio, idella, auratus, ...

Mediterranean river systems are characterised by more diverse fish assemblages and regional ecological processes compared with the rest of Europe. A data set from Mediterranean France, Iberia and Greece ( 2000 sites) was used to describe the characteristics of fish assemblages, explore their responses to anthropogenic disturbance and analyse the implications for river quality assessment. There ...

Various chemical and biological measures were determined in carp (Cyprinus carpio) sampled from seven sites along the Cuyahoga River, Ohio; from the relatively pristine headwaters to the lower portion heavily polluted from various industrial, urban and wastewater treatment plants (WWTP). Levels of nonylphenol (NP), nonylphenol ethoxylates (NPEs; NP1EO, NP2EO) and total NPEs (NP plus the NPEs) i...

In many North American rivers, populations of multiple species of non-native cyprinid fishes are present, including black carp (Mylpharyngodon piceus), grass carp (Ctenopharyngodon idella), bighead carp (Hypophthalmichthys nobilis), silver carp (Hypophthalmichthys molitrix), common carp (Cyprinus carpio), and goldfish (Carassius auratus). All six of these species are found in the Mississippi Ri...

Understanding behavioral differences between intraspecific genotypes of aquatic animals is challenging because we cannot directly observe the animals underwater or visually distinguish morphologically similar counterparts. Here, we tested a new monitoring tool that uses environmental DNA (eDNA), an assemblage of DNA in environmental water, to specifically detect Japanese native and introduced n...

Bacillus is a potential probiotic candidate which currently widely applied in aquaculture. can be found various hosts, one of the intestines fish. This study contains genus subtilis intestinal fish CgM22. The steps taken were characterization CgM22 with gram staining test, inhibition and proteolytic test. method at rearing stage an experimental Completely Randomized Design (CRD) model that uses...