Genetic structure of an endemic tooth-carp fish, Aphanius farsicus from four different water bodies in the Maharlu Lake basin was investigated by applying five microsatellite markers. All of the five examined microsatellite loci showed polymor-phism pattern. A total of four alleles were detected at five microsatellite loci, with an average of 2.8 to 3.5 alleles per locus. Average values of obse...

Fishes of buni ,(Barbus sharpeyi (Gunther,1874)) with average weight (20.13 ± 1.77) gm and common carp ,(Cyprinus carpio) (20.63 0.56) were reared in eight plastic aquariums 15 L cabacity. Four treatments (two replicates) carried out as following:(1) 10 per aquarium, (2) 8 one aquaria, (3) 6 another aquarium (4) aquarium. Artificial food (29.31 % protein) was fed to the fishes once daily 3 body...

The fishes and invertebrates of the Cosumnes River basin and its floodplain were intensively studied from 1999 through 2002 to determine their basic distribution, abundance, and ecology. The purpose of the studies, done in conjunction with studies on fluvial geomorphology, water chemistry, and other aspects of the physical and chemical environment, was to develop the information needed for mana...

In teleostean fishes the hypothalamic-pituitary-thyroid axis (HPT axis) and the hypothalamic-pituitary-interrenal axis (HPI axis) regulate the release of thyroid hormones (THs) and cortisol respectively. Since many actions of both hormones are involved in the regulation of metabolic processes, communication between both signal pathways can be anticipated. In this study, we describe central and ...

The Tri-States Mining District (TSMD) of Missouri (MO), Kansas (KS), and Oklahoma (OK), USA, was mined for lead (Pb) and zinc (Zn) for more than a century. Mining ceased more than 30 years ago, but wastes remain widely distributed in the region, and there is evidence of surface- and groundwater contamination in the Spring River-Neosho River (SR-NR) system of northeastern OK. In October 2001, we...

In the present study, we reported infection with eighteen species of the genus Dactylogyrus, belong to thefamily Dactylogyridae from five breeder fish species, including common carp (Cyprinus carpio), grass carp(Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix), big head carp (Hypophthalmichthysnobilis) and black carp (Myelopharyngodon piceus) which introduced and imported to ...

Although rare within the context of 30 000 species of extant fishes, scale-feeding as an ecological strategy has evolved repeatedly across the teleost tree of life. Scale-feeding (lepidophagous) fishes are diverse in terms of their ecology, behaviour, and specialized morphologies for grazing on scales and mucus of sympatric species. Despite this diversity, the underlying ontogenetic changes in ...