Toxicity of the herbicides like 2, 4-D NA salt, glyphosate and paraquat were tested, fish was investigated in laboratory and toxicity tested with common carp. Median lethal concentrations were determined in acute tests. The 96 h LC50 value was 100, 86 and 26 mg/L were tested. The experiment was laid out in a randomized block design with four replications. Screening of different herbicides was t...

Literature review of reports concerning the parasitic fauna floating cage fishes in Iraq till end 2021 showed that a total 57 parasite species are so far known from three fish investigated for infections throughout country. The included 15 ciliophorans, myxozoans, two trematodes, 28 monogeneans, five cestodes, one nematode, acanthocephalan and crustaceans. common carp Cyprinus carpio was infect...

While a large respiratory surface area is good for gas exchange, it also poses several problems, including energetically unfavorable fluxes of water and ions. As a result, fishes appear to have a respiratory surface area that is matched to their oxygen demands. When faced with changes in their need for oxygen uptake, e.g. through altered physical activity or altered ambient oxygen levels, fishe...

When managing invasive fishes, permanent barriers may be best in preventing spread; however, they may not be feasible due to costs and logistical constraints. Alternatively, non-permanent barriers using electricity, light, sound, pressure, bubbles, CO2, and other stimuli are being developed and deployed in efforts to limit the spread of aquatic invasive species or to achieve fish guidance and c...

The objective of the current study was determined chemical composition (including protein, lipid, ash and moisture) and content of minerals (Zn, Mn, Fe, Cu, Cr, Ca, Na, Mg, Mo, P, Se, K, I and F) in five fish species from the South Caspian Sea. The chemical analysis revealed that the protein content of common kilka, Caspian kutum, common carp, pike perch and golden grey mullet was 18.35%, 21.39...

The current investigation was undertaken to study the gill histopathologies due infestation of helminth parasite, monogenetic trematode, Dactylogyrus vastator (Nybelin, 1924) in Indian major carp, Catla catla. There were only symptomatic samples diseased fishes comprised fingerlings and adults catla collected examined. Behaviour respond studied- partial suffocation, lethargic swimming clinical ...

Mycobacterium marinum can cause systemic infection in fishes and skin infection in humans. Most strains grow better at <37 degrees C, which can explain the rarity of infections in humans. The ability of strains from humans and fish to grow in various conditions, and in macrophages from carp, humans, and mouse was evaluated, as was the ability of the three fish isolates to infect mice. Significa...

Sonic hedgehog (Shh) is an essential signaling peptide required for normal embryonic development. It represents a highly-conserved marker of odontogenesis amongst the toothed vertebrates. Signal transduction is involved in early specification of the tooth-forming epithelium in the oral cavity, and, ultimately, in defining tooth number within the established dentition. Shh also promotes the morp...

Apolipoprotein A-I (ApoA-I) is functionally involved in the transportation and metabolism of lipids in vertebrates. In this study, two isoforms of apoA-Ib in common carp (Cyprinus carpio L.) were characterized. Sequence comparison and phylogenetic analysis showed that C. carpio ApoA-Ib is relatively conserved within cyprinid fishes. During embryonic development, C. carpio apoA-Ib was first expr...

The study was conducted to evaluate the prevalence of food borne trematode infections in commercially important fish species of Pakistan such as, Labeo rohita (rohu), Cirrhinus mrigala (mori), Catla catla (thaila), Hypophthalmichthys molitrix (silver carp). For this purpose 222 different samples of fishes were collected from different water bodies i.e. Rawal Dam, Islamabad, Mangla Dam (Mirpur) ...