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65 results for “Cyprinus carpio”
All three types of otoliths of Cyprinus carpio (total length=30 cm); left/right asterisci and lapilli from top and bottom view, and one sagittus.
<p>The image shows all three types of otoliths of <em>Cyprinus carpio</em> (total length=30 cm): left/right <em>asterisci</em> and <em>lapilli </em>from top and bottom view, and one sagittus. </p>
Dataset for: Common carp (Cyprinus carpio) invasion alters greenhouse gas emissions in shallow lakes.
Climate change and invasive species are among the most important environmental problems of this century. Freshwaters are important regulators of the global carbon cycle and a key source of atmospheric greenhouse gases. However, freshwater environments may be particularly susceptible to species invasion and adverse effects, and the consequences of altered species assemblages on greenhouse gas emissions remain poorly understood. In this study, we analyzed the impact of one of the world's most damaging invasive species, the common carp, on freshwater greenhouse gas emissions. We show that lakes with invasive carp had lower methane emissions despite increased eutrophication, contradicting the well-established assumption that methane emissions from lakes increase with nutrient levels and productivity. This is likely due to substantial depletion of the benthic environment. As invasive species spread continues, new species assemblages may therefore disrupt ecosystem functioning and diverse global cycles in unexpected ways.
Dataset for: Invasion of Common Carp (Cyprinus carpio) Reduces the Quality of Bottom Sediments in Shallow Lakes
Species invasions are one of the main anthropogenic forces reshaping ecological structure and function in lakes during the 21st century. Common carp (Cyprinus carpio) are among the most globally widespread and damaging aquatic invasive species, with the capacity to significantly alter lake ecosystems. While it is well documented that carp feeding activity can disturb sediments, decrease water quality, and reduce macrophyte and fish diversity, less is known about how carp influence sediment chemistry and nutrient cycling. Here, we examined the effect of carp invasion on sediment phosphorus (P) dynamics and organic matter quality in shallow lakes. We compared P fractions in sediments of lakes with established carp populations and those from carp-free reference lakes. We found that lakes with carp had depleted surficial sediments, with significantly lower organic P (0.16 vs. 0.41 mg g-1) and higher C/P ratios (972 vs. 639) than lakes without carp. Carp lakes had higher concentrations of water-column total P (370 vs. 160 μg L-1), though a mass balance between sediment labile P and water-column P was similar for lakes with and without carp, indicating sediment P loss due to carp is largely kept in the water column. Sediments are a crucial component of lake ecosystems, and a reduction in sediment organic matter quality by invasive carp can alter food web dynamics and geochemical processes in invaded lakes.
Fig. 3 in New Records of Monogeneans, Gyrodactylus cyprini (Gyrodactylidae) and Dactylogyrus extensus (Dactylogyridae), Parasitic on Reared Common Carp Cyprinus carpio (Cypriniformes: Cyprinidae) in Mie Prefecture, Japan
Fig. 3. Sclerotized parts of Dactylogyrus extensus Mueller and Van Cleave, 1932 (MPM Coll.-No. 21981). Male copulatory organ, ventral view.
Fig. 1. Gyrodactylus cyprini Diarova, 1964 in New Records of Monogeneans, Gyrodactylus cyprini (Gyrodactylidae) and Dactylogyrus extensus (Dactylogyridae), Parasitic on Reared Common Carp Cyprinus carpio (Cypriniformes: Cyprinidae) in Mie Prefecture, Japan
Fig. 1. Gyrodactylus cyprini Diarova, 1964 (A–C, E: MPM Coll.-No. 21980; D: MPM Coll.-No. 19251). A, Central hook complex (ventral view); B, marginal hook; C, D, marginal hook sickle; E, male copulatory organ.
Fig. 2. Gyrodactylus kherulensis Ergens, 1974 in New Records of Monogeneans, Gyrodactylus cyprini (Gyrodactylidae) and Dactylogyrus extensus (Dactylogyridae), Parasitic on Reared Common Carp Cyprinus carpio (Cypriniformes: Cyprinidae) in Mie Prefecture, Japan
Fig. 2. Gyrodactylus kherulensis Ergens, 1974 (A–C, E: MPM Coll.-No. 19606; D: MPM Coll.-No. 19251). A, Central hook complex (ventral view); B, marginal hook; C, D, marginal hook sickle; E, male copulatory organ.
Fig. 1 in Histochemical alterations in liver of Common Carp Cyprinus carpio (Linnaeus, 1785) after glyphosate exposure: Preliminary study
Fig. 1. Sudan III staining intensity in liver of Common Carp after 96 h exposure to glyphosate: А – control, x200; Б – 20 mg/L glyphosate, x400; В – 40 mg/L glyphosate, x400; Г – 72 mg/L glyphosate, x400.
Fig. 1 in Lipid accumulation in Cyprinus carpio (Linnaeus, 1785) liver induced by thiamethoxam
Fig. 1. Intensity of Sudan III staining in Common Carp liver: A – control group, x200; B – 6.6 mg/L insecticide, x400; C – 10 mg/L insecticide, x400; D – 20 mg/L insecticide, x400.
Fig. 1 in Cadmium (Cd) affects the gill structure and respiration rate of Common Carp (Cyprinus carpio L.)
Fig. 1. Histological alteration in common carp gills (H&E) after Cd exposure. A - normal gill histological structure, x200; B - lamellar lifting (), proliferation of filamentous epithelium (), fusion of secondary lamellae (), x400; C - proliferation of filamentous () and secondary lamellae epithelium (), x400; D - degenerative changes, x400; E - vasodilatation in blood vessels of secondary lamellae () and gill filament (), x400; F - vasodilatation in gill filament blood vessels, x400.
Fig. 6 in New data on Thelohanellus nikolskii Achmerov, 1955 (Myxosporea, Myxobolidae) a parasite of the common carp (Cyprinus carpio, L.): The actinospore stage, intrapiscine tissue preference and molecular sequence
Fig. 6. Phylogenetic position of Thelohanellus nikolskii spores from the fins and scales of common carp based on SSU rDNA analysis by the Maximum Likelihood algorithm. Myxobolus cerebralis was used as the outgroup. Bootstrap values are given at the nodes. The scale-bar indicates the number of expected substitutions per site.
Fig. 5 in New data on Thelohanellus nikolskii Achmerov, 1955 (Myxosporea, Myxobolidae) a parasite of the common carp (Cyprinus carpio, L.): The actinospore stage, intrapiscine tissue preference and molecular sequence
Fig. 5. Microphotograph of fresh, unstained actinospore of Aurantiactinomyxon type (AUM5) from Nais sp. Insert – apical view of spore with protruding polar capsules.
Fig. 7 in New data on Thelohanellus nikolskii Achmerov, 1955 (Myxosporea, Myxobolidae) a parasite of the common carp (Cyprinus carpio, L.): The actinospore stage, intrapiscine tissue preference and molecular sequence
Fig. 7. Schematic illustration of T. nikolskii life cycle: Aurantiactinomyxon-type actinospores (A) infect the vertebrate host C. carpio (V) in which they develop myxospores (M) that infect the invertebrate host Nais sp. (I).
Fig. 2. A in New data on Thelohanellus nikolskii Achmerov, 1955 (Myxosporea, Myxobolidae) a parasite of the common carp (Cyprinus carpio, L.): The actinospore stage, intrapiscine tissue preference and molecular sequence
Fig. 2. A: Section of an infected fin, containing T. nikolskii cysts, stained with hematoxilin-eosin. Cartilage of finray (cf) is next to the cyst. Plasmodium (p) is in the achromatic tegument, mature myxospores (s) are in the middle, sporoblasts (sb) are at the edges. Around the plasmodium, there is a thick connective tissue (ct) layer, containing cartilaginous elements (c). Multilayer epithelium (e) is the outer layer. B: T. nikolskii myxospores from the plasmodium.
Fig. 4. A in New data on Thelohanellus nikolskii Achmerov, 1955 (Myxosporea, Myxobolidae) a parasite of the common carp (Cyprinus carpio, L.): The actinospore stage, intrapiscine tissue preference and molecular sequence
Fig. 4. A: Cross section of infected scales, stained with hematoxilin-eosin. The plasmodia (p) are filled with myxospores (s) and are surrounded by cartilaginous tissue (c) of the scales, covered by the epithelium layer (e). B: T. nikolskii myxospores from a plasmodium in the scale.
Fig. 1 in Caryophyllidean tapeworms (Cestoda), Nearctic parasites of fish in Mexico, including description of a new species of Isoglaridacris and the first report of Khawia japonensis, an invasive parasite of common carp (Cyprinus carpio)
Fig. 1. Archigetes sp. 1 from Notropis caliensis, Michoac´an (CNHE 6800) (A, C, F); Archigetes (?) sp. 2 from Notropis nazas, Durango (CNHE 6797) (B, E); Archigetes sp. 3 from Chirostoma sp., Michoac´an (CNHE 6801) (D). A, B – total view, dorsally; C, E – anterior part with scolex; note different position of anterior-most testes and vitelline follicles between C and E; D – total view, ventrally; F – ovarian and uterine region, dorsally. Abbreviations: cs – cirrus-sac; eb – excretory bladder; eg – eggs; esv – external seminal vesicle; lo – loculi; ov – ovary; sr – seminal receptacle; te – testes; vf – vitelline follicles.
Fig. 3 in Caryophyllidean tapeworms (Cestoda), Nearctic parasites of fish in Mexico, including description of a new species of Isoglaridacris and the first report of Khawia japonensis, an invasive parasite of common carp (Cyprinus carpio)
Fig. 3. Khawia japonensis (Yamaguti, 1934) from Cyprinus carpio, Durango (CNHE 6516). A – total view, ventrally (median preovarian vitelline follicles omitted except for anterior-most follicles); B – anterior end; C – posterior end, ventrally. Abbreviations: cgp – common genital pore; cs – cirrus-sac; Mg – Mehlis' gland; ov – ovary; povf – postovarian vitelline follicles; sd – sperm duct (vas deferens); sr – seminal receptacle; te – testes; ug – uterine glands; ut – uterus; va – vagina; vf – vitelline follicles.
Fig. 2 in Caryophyllidean tapeworms (Cestoda), Nearctic parasites of fish in Mexico, including description of a new species of Isoglaridacris and the first report of Khawia japonensis, an invasive parasite of common carp (Cyprinus carpio)
Fig. 2. Isoglaridacris brevicollis sp. n. from Catostomus nebuliferus, Durango (CNHE 6802; IPCAS C-885; 2x CNHE 6761) (A–D), Catostomus bernardini, Sonora (CNHE 6796) (E), and Moxostoma astrinum, Jalisco (CNHE 6799) (F); Pseudoglaridacris confusa (Hunter, 1929) from Ictiobus meridionalis, Oaxaca (CNHE 6798) (G). A – total view, ventrally; B – anterior end; C – posterior end, ventrally; D – slightly contracted scolex; E – cirrus-sac with external seminal vesicle, ventrally; F – ovary with overlapping posterior wings, dorsally (uterine loops are omitted at level of ovarian isthmus and more posteriorly); G – total view, dorsally. Abbreviations: cgp – common genital pore; cs – cirrus-sac; eb – excretory bladder; esv – external seminal vesicle; lo – loculi; ov – ovary; povf – postovarian vitelline follicles; sd – sperm duct (vas deferens); te – testes; ut – uterus; va – vagina; vd – vitelline duct; vf – vitelline follicles.
Fig. 8. Cyprinus carpio wild type, 307 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins
Fig. 8. Cyprinus carpio wild type, 307 mm SL, Tai O River (top), ornamental variety, 596mm SL, Shing Mun Reservoir (bottom).
Receptor cavity-based screening reveals potential allosteric modulators of gonadotropin receptors in carp (Cyprinus carpio)
<p>The datasets include input files used for docking including the receptor models, docking grids and and ligand databases consisting of prepared ligand used in screening of potential allosteric modulators for carp FSHR and LHR. the original dataset were sourced from The compound libraries from <a href="https://enamine.net/compound-libraries">https://enamine.net/compound-libraries</a> and are free to access, downloaded and used as per the mentioned sites terms and conditions. The ligand Database given here are constructed and processed using the Phase module (Phase, Schrödinger, LLC, New York, NY, 2021.). The dataset also includes .pdb files of the docked ligands. </p>
Fig. 5 in Test Of Different Feeding Regimes And Diets For Rearing Cyprinus Carpio Larvae In Closed Ras
Fig. 5. Larvae mortality.
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