Abstract Molluscicide of fentin acetate (C 20 H 18 O 2 Sn) is commonly used at the present due to effective in terms control molluscs rice field. The aims this experiment determine toxicity effect on growth, productivity, and blood glucose common carp, Cyprinus carpio cultured field water. A 12 plots with size 25m each were used. stocking density carp was 25 fish/m for plot. culture period 21 d...

Maggot (Hermetia illucens) is one type of alternative feed from Black Soldier Fly that easy to cultivate, economical and profitable reduce the rate aquaculture production cost. The purpose this study was determine growth maggot as carp (Cyprinus carpio) on growing medium apu (Pistia stratiotes). Research conducted March April 2022, using Complete Randomized Design method with 5 treatments 3 rep...

Biological invasions are a significant driver of human-induced global change and many ecosystems sustain sympatric invaders. Interactions occurring among these invaders have important implications for ecosystem structure and functioning, yet they are poorly understood. Here we apply newly developed metrics derived from stable isotope data to provide quantitative measures of trophic diversity wi...

Background: An experimental study was conducted to examine growth performance and economic feasibility of Cyprinus carpio (Linnaeus, 1758) Labeo rohita (Hamilton, 1822) vis-à-vis their improved strains viz. Amur carp Jayanti rohu, in synchronously integrated rice-fish system at high altitude terraced paddy-fields (HATPF). Methods: The fields were stocked with fingerlings (6.95±0.67 g) a density...

Cells from the myeloid lineage are pluripotent. To investigate the potential of myeloid cell polarization in a primitive vertebrate species, we phenotypically and functionally characterized myeloid cells of common carp (Cyprinus carpio L.) during culture. Flow cytometric analysis, Ab labeling of cell surface markers, and light microscopy showed the presence of a major population of heterogeneou...

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...

Microcystins (MCs) are a group of cyclic hepatotoxic peptides produced by cyanobacteria. Microcystin-LR (MC-LR) contains Leucine (L) and Arginine (R) in the variable positions, and is one of the most common and potently toxic peptides. MC-LR can inhibit protein phosphatase type 1 and type 2A (PP1 and PP2A) activities and induce excessive production of reactive oxygen species (ROS). The underlyi...

The effects of naltrexone on the in vitro luteinizing hormone (LH) secretion from whole pituitary glands as well as from dispersed pituitary cells of common carp (Cyprinus carpio L.) in primary cell culture were studied. The perifusion of whole pituitary glands with naltrexone at a concentration of 10 M caused a significant increase of LH secretion compared to the control. This finding suggests...

The effects of salmon calcitonin (sCT) on the secretion of 17beta-estradiol (E(2)) were examined in female common carp, Cyprinus carpio. Vitellogenic stage fish adapted to high-Ca water were i.p. injected with vehicle, sCT, human chorionic gonadotropin (hCG), or hCG plus sCT. To determine whether ovarian follicles are equipped with CT receptors, a CT binding assay was conducted. In the in vitro...

Although environmental DNA (eDNA) has been used to infer the presence of rare aquatic species, many facets of this technique remain unresolved. In particular, the relationship between eDNA and fish distribution is not known. We examined the relationship between the distribution of fish and their eDNA (detection rate and concentration) in a lake. A quantitative PCR (qPCR) assay for a region with...