Abstract Fish provides main source of high quality protein to more than one billion people in the world. parasites directly affect productivity fish and indirectly on human health. This research was aimed assess helminth Schizothorax plagiostomus (the snow trout) from river Panjkora, KP, Pakistan. A total 88 samples (n= 88) were collected upper, middle lower regions through cast nets, hand nets...

The construction of a reservoir dam alters the environment within its basin, including composition fish community, biodiversity, and river ecosystem itself. This study was conducted in Sanbanxi Reservoir used eDNA metabarcoding technology comprising capture extraction, PCR amplification, sequencing database comparison analysis, other environmental DNA standardized analysis processes to characte...

Abstract Sperm handling procedures and its usage for in vitro fertilization are crucial standardized experimental operations on evaluation of reproductive performance, gamete quality, optimization protocols. In our study, the changes perch sperm motility parameters within 6-h chilled storage using 4 different activating solutions were compared. Eight sperm-to-egg ratio was also compared during ...

Downstream-migrating fish in rivers tend to follow the main current, and are danger of swimming through turbines at run-of-river hydropower plants, possibly causing high mortality rates. To avoid these losses, must be prevented from entering turbines. Most existing vertical bar rack systems (used for turbine protection) however usually do not ensure proper protection due large spacings. FishPro...

Bar racks are commonly installed to divert fish away from water intakes, such as those at hydropower stations or other abstraction points. In temperate regions their effectiveness has predominantly been assessed in relation diadromous species, salmon and eel. This study compared the efficacy of horizontally vertically oriented (5 mm diameter 10 spacing) guide downstream moving groups five chub ...

backgrounds: gyrodactylus is a small monogenean ectoparasite that lives on the skin and fins of most of the world's fish species. gyrodactylus appears to be one of the most prevalent parasites found in ornamental fish, especially in cyprinids. goldfish (carassius auratus) are a popular ornamental fish that are highly contaminated by gyrodcatylus. objectives: the present study is aimed to identi...

the aim of this study was to investigate the effect of chemical fertilizer and composite of organic and chemical fertilizer on lernaeasis in cultured cyprinids was performed in two treatments and three replications in each, in 6 one-hectare ponds. in first treatment only chemical fertilizer and in the second treatment the composite of organic and chemical fertilizer were used. the other rearing...