Population growth (length-weight relationship), and reproductive potential (e.g. fecundity, and sex-ratio) of five important fish species (‘mola’: Amblypharyngodon mola, ‘puti’: Puntius sophore, ‘tengra’: Mystus vittatus, ‘shing’: Heteropneustes fossilis and ‘taki’: Channa punctatus) collected from two important fresh waters bodies (namely Hilna beel and Beel Kumari beel) Rajshahi, Bangladesh, ...

in this study, the diversity and distribution of economical bony fishes in less-than-ten-meter depths, cpue and population features such as total length, weight and age were investigated in the southern part of the caspian sea in 1385-6. sampling was done in five regions: amir abad, larim, izdeh, kheyroud, and nashtarood with gilnet in mesh sizes of 26, 33, 40, 60, 100, and 150 mm. in total, 22...

heterophyidosis is a fish-transmitted disease in khuzestan province, therefore a total of 900 fresh water fishes belonging to cyprinus carpio, liza abtt and gambosia affinis, were collected from canals of mazreeh district in the central area of khuzestan. in 44%, metaccrcariae of three small flukes of human including haplorchis taickut, haplorchis pumilio, stellanichasmus falcamtus were found. ...

We review the use of parasites as biological tags of marine fishes and cephalopods in host population structure studies. The majority of the work published has focused on marine fish and either single parasite species or more recently, whole parasite assemblages, as biological tags. There is representation of host organisms and parasites from a diverse range of taxonomic groups, although focus ...

In an aquatic environment, there is a profound and inverse relationship between environment quality and disease status of fish. Parasites are one of the most serious limiting factors in aquaculture. Therefore, the present investigation has been undertaken to sort out the population dynamics of Pallisentis (Acanthocephala), in relation to host sex from freshwater fishes, Channa of Rohilkhand reg...

Fish-borne illness is associated with pathogenic bacteria, Vibrio spp., transmitted from contaminated aquaculture water to fish. But little is known about the correlation between water quality in aquaculture and subsequent bacterial contamination in fish products. The degree of bacterial transmission from Vibrio spp. contaminated aquaculture water to fish was investigated. V. anguillarum, V. pa...

In this study we explore the possible role of phenotypic plasticity in the process of adaptation and evolutionary change in the African cichlid Pseudocrenilabrus multicolor victoriae. Parental fish were collected from a hypoxic swamp, a lake ecotone, and a river in Uganda. Broods (F1) were split and grown under hypoxia or normoxia. We measured morphological parameters of the gill apparatus, str...

The perceived value of oyster reefs as fish habitat has led to many restoration projects in areas of historically high oyster populations. This study evaluated fish usage of a limestone cobble mimic oyster reef in Barataria Bay, Louisiana, as compared to a mud-bottom reference site. Emphasis was given to species of economic and ecological importance, including spotted seatrout (Cynoscion nebulo...

We employed DNA sequence variation at two mitochondrial (control region, COI) regions from 212 individuals of Galaxias platei (Pisces, Galaxiidae) collected throughout Patagonia (25 lakes/rivers) to examine how Andean orogeny and the climatic cycles throughout the Quaternary affected the genetic diversity and phylogeography of this species. Phylogenetic analyses revealed four deep genealogical ...