Relative contributions of aquaculture-origin and naturally-reproduced grass carp (Ctenopharyngodon idella) in the Laurentian Great Lakes have been unknown. We assessed occurrence distribution wild using ploidy otolith stable oxygen isotope (?18O) data. inferred natal river dispersal from location for microchemistry estimated ages fish to infer years which natural reproduction introductions occu...

Here, we characterized the structure and function of the coagulation factor II (FII) gene in grass carp and determined its role in coagulation mechanisms. The FII gene EST was obtained using a constructed splenic transcriptome database; the full-length FII gene sequence was obtained by 3' and 5' RACE. The open reading frame (ORF) of FII was cloned and the full-length gene was found to be 1718 b...

Hornwort (Ceratophyllum demersum L.) and other aquatic macrophytes have historically been mechanically removed from the Rangiriri drain and Churchill East drain to maintain drain efficiency. As an alternative control method for the high plant biomass that accumulates at the end of summer, the effect of stocking diploid grass carp (Ctenopharyngodon idella L.) on the aquatic vegetation was evalua...

In this experimental series, we studied the swimming capabilities and response of grass carp (Ctenopharyngodon idella) larvae to flow turbulence in a laboratory flume. We compared three different configurations, representing in-stream obstructions commonly found natural streams (e.g., gravel bump, single vertical cylinder, patches submerged rigid vegetation). Grass (postgas bladder emergence) w...

Understanding interspecific morphometric variation is a prerequisite of species identification, evolutionary and taxonomic studies. The external features (i.e. ratios) five Macrobrachium viz., rosenbergii, M. lanchesteri, dolichodactylus, idella lamarrei from three rivers in northern Bangladesh, were used to analyze variation. samples collected Jamuneshwari river, Tangon river Atrai river. Morp...

In the present study, genotoxic, histological and hematological effects of water pollution were evaluated in Ctenopharyngodon idella from Ili river. Water fish sampled at three sites. The concentrations following heavy metals measured water: Pb, Co, Mg, Cd, Cu, Zn, Fe. with gradually increased P1 to P3: P1, Cu Fe levels exceeded maximum permissible for culture, P2 – Fe, P3 river, highest freque...

Adiponectin plays critical roles in the regulation of energy metabolism mammals. However, its fish remain to be evaluated. In this study, we examined tissue distribution characteristics two adiponectin genes, namely, adipoqa and adipoqb, at transcriptional level, detected changes their mRNA expressions during oral glucose tolerance test (OGTT). Furthermore, prepared recombinant proteins grass c...