• Title/Summary/Keyword: C. carpio

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Toxic Effects of Waterborne Copper Exposure on the Hematological Parameters and Plasma Components of Mirror Carp Cyprinus carpio nudus (수인성 구리 급성노출에 의한 향어(Cyprinus carpio nudus)의 혈액학적 성상 및 혈장성분의 독성영향)

  • Jo, A-Hyun;Hong, Su-Min;Jeong, Ji-ho;Eun, Ji-Su;Joo, Chang-Hoon;Kim, Jun-Hwan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.54 no.6
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    • pp.954-964
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    • 2021
  • Mirror carp Cyprinus carpio nudus (weight 42.0±3.8 g, length 14.3±0.4 cm) were exposed to different concentrations of waterborne copper (0, 100, 200, 400, 800, and 1,600 ㎍ Cu2+·L-1) at 20.3℃ for 96 h. The lethal concentration 50 of waterborne copper was 1,176.45 ㎍ Cu2+·L-1. Among hematological parameters, red blood cell count was significantly decreased, whereas there were no significant changes in the hemoglobin concentration and hematocrit value. Among the inorganic plasma components, calcium was significantly decreased following copper exposure. Conversely, organic plasma components such as glucose and total protein were significantly increased. Similarly, enzymatic components, such as aspartate transaminase, alanine transaminase, and alkaline phosphatase, were also significantly increased. These findings suggest that the copper exposure is detrimental to the survival rates and physiology of C. carpio nudus.

New Record of Aspidogaster ijimai Kawamura, 1913 (Trematoda: Aspidogastridae) from Cyprinus carpio in Korea

  • Lee, Dongmin;Park, Hansol;Choe, Seongjun;Kang, Yeseul;Jeon, Hyeong-Kyu;Eom, Keeseon S.
    • Parasites, Hosts and Diseases
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    • v.55 no.5
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    • pp.575-578
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    • 2017
  • Aspidogastrid trematodes (Subclass Aspidogastrea) are a relatively small group with a characteristic adhesive disc and parasitize in a variety of cold-blooded hosts. Until now, only 2 species in the genus Cotylaspis, i.e., C. coreensis and C. sinensis, have been reported as the aspidogastrid trematode in the Republic of Korea (=Korea). In the present study, we intended to describe a species of aspidogastrids collected from the small intestine of the common carp, Cyprinus carpio, in a faunistic point of view. Total 51 specimens were collected from a carp caught in Nakdong-gang (River) on May 2015. Some of them were prepared as the specimens for light microscopic observations, and some others were prepared for SEM. They were slightly elongated without head lobes, $2,432{\times}840{\mu}m$ in average size, and had characteristic adhesive discs with 4 rows and 46 alveoli in average. The ovary was reniform and was located in the posterior-upper part of the body. The single testis was larger than the ovary and was located below the ovary. The uterus was coiled containing numerous eggs and distributed in the posterior 2/3 of the body. The vitellaria were follicular, and distributed from the mid-level of testis to near the posterior end. The morphological characters with dimensions of our specimens were closely identical with those of Aspidogaster ijimai previously described. A new aspidogastrid is added among the Korean trematode fauna by the present study.

Is Koi Herpesvirus (KHV) Related to the Mass Mortality Occurring among Cultured Carp, Cyprinus carpio, in Korea?

  • Kim, Wi-Sik;Jung, Sung-Ju;Kim, Du-Woon;Kim, Seok-Ryel;Kim, Jeong-Ho;Oh, Myung-Joo
    • Fisheries and Aquatic Sciences
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    • v.13 no.1
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    • pp.79-83
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    • 2010
  • Since 1998, a new viral disease with high mortality has been consistently recorded in Korea in cultured carp, Cyprinus carpio. In this study, we investigated an epizootic of the disease that caused high mortality rates in carp obtained from 11 farms in Korea between 1999 and 2007. Assessment of koi herpesvirus (KHV) levels in diseased carp was carried out to determine if this virus was the etiologic agent of disease in this instance. High mortality rates in carp were recorded mainly in the spring and autumn at water temperatures between $19^{\circ}C$ and $24^{\circ}C$. Diseased fish typically showed surface discoloration, with a thick opaque mucus covering the body and gills. Protozoan parasites and bacteria were recovered from 7/29 (24%) and 2/26 (8%) of fish, respectively. Evidence of viral infection was marked; cytopathic effects (CPEs), characterized by cell rounding and an extended cytoplasm in fathead minnow (FHM) cells, were detected in 40/41 fish (98%). A high mortality rate (80%) resulted when supernatants of cell cultures showing CPEs were applied to previously healthy fish. KHV was detected by polymerase chain reaction in 6/41 fish (15%), but was not detected in supernatants obtained from cell cultures showing CPEs. These results suggest that KHV may not be the etiologic agent of the high mortality occurring among cultured carp in Korea; therefore, some other-as yet unidentified-infective agent must be responsible.

On the Pharyngeal Bones and Their Teeth in Korean CYPRINIDS Fishes (II) Variation Ratio of Pharyngeal Teeth of Carp(Cyprinus carpio) (한국산 잉어과 어류의 인두골과 인두치(제 2보) 잉어 Cyrinus carpio의 인두치의 변이)

  • 양홍준
    • The Korean Journal of Zoology
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    • v.7 no.1
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    • pp.6-8
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    • 1964
  • 1. A total of 260 individuals of carp was collected from Nakdong and Hyungsan Rivers. 2. The normal dental form of carp is 3, 1, 1-1, 1, 3, but the author observed abnormal dental forms (3, 2 or 1, 1, (+1)-1, 1 or 2, 3). 3. Variation ratios of dental forms are : A. Normal form; 3, 1, 1-1, 1, 3..........88.85% B. Abnormal forms; a. 3, 2, 1-1, 1 or 2, 3..........2.31% b. 3, 1, 1, 1-1, 1 or 2, 3..........5.00% c. 3, 2, 1, 1-1, 1 or 2, 3..........3.07% d. with 2 or 3 bone processes..........0.77% 4. The ratios among the length of first row (I), length of second tooth in first row ($I_{-2}$) and mid line(M) are as follows; 5. The growth of bone process beside second row tooth is not concerned with the body growth. 6. The number of the groove on second tooth in first row increases according to the growth of body.

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Effects of Humic Acid on the Cadmium-Induced Fish Toxicity (Humic acid가 카드뮴 어독성에 미치는 영향)

  • 최덕일;최성수;최필선;류홍일;이길철;박광식;류지성;정규혁
    • Environmental Analysis Health and Toxicology
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    • v.13 no.1_2
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    • pp.11-17
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    • 1998
  • Cadmium, a major aquatic pollutant in many parts of the world, is toxic and readily accumulated in aquatic organisms. It mainly exists in water as complexes with organic ligands such as dissolved organic carbon and this complexation is known to have effects on the aquatic toxicities. In this study, acute toxicity, histology, and bioaccumulation were studied to evaluate effects of humic acid on cadmium toxicity and bioavailability to fish using Oryzias lalipes and Cyprinus carpio. 96h-LC$_{50}$ of cadmium was 6.38mg/L using Oryzias latipes. However, the mortality showed the dose-dependent decrease when humic acid was added to the test solution. When fish were exposed to 5 mg/L of cadmium, histological changes in the exposed organs (caudal fins, gills, kidney, liver, and gut) of C~lprinus carpio were decreased by humic acid, especially in kidney and liver. Bioaccumulation of cadmium also decreased by treatment of humic acid. It seems that the formation of complexes between cadmium and humic acid may decrease bioavailability of cadmium to fish, and thus reduce the toxic effects of cadmium.

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Antiviral activity of interferon-like cytokine (ILC) produced by head kidney leucocytes of common carp, Cyprinus carpio L (잉어 두신 백혈구에서 생성된 Interferon-like cytokine (ILC)의 항바이러스 활성)

  • Jo, Mi-Yeong;Kim, Eun-Jeon;Im, Sang-Gu;Kim, Jun-U;Park, Su-Il
    • Journal of fish pathology
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    • v.17 no.2
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    • pp.75-82
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    • 2004
  • Interferons are kinds of cytokines that play an important role in antiviral defense mechanisms during viral infection by converting cells to synthesize proteins that inhibit viral replication. In the present study, an antiviral response against Spring viremia of carp virus (SVCV) was developed in common carp, Cyprinus carpio following stimulation with the potent interferon inducer, poly inosinic : cytidylic acid (poly I:C). Poly I:C injected fish showed lower cumulative mortalities against SVCV than untreated fish did. Moreover, in vitro study showed that head kidney leucocytes (HKLs) produced an interferon-like cytokine (ILC) after stimulation with poly I:C. According cytopathic effect reduction (CPER) assay to examine antiviral activity of crude ILC, the capacity of HKLs for ILC production was highest at 1×$10^6$cells/ml and significantly enhanced when treated with 20~50$\mu{g}$/ml of poly I:C. The optimal temperature and concentration of FBS to induce the highest ILC production were $20^\circ{C}$ and 5%, respectively.

Histopathological Study of Acute Toxicity of Ammonia on Common Carp Cyprinus carpio (잉어, Cyprinus carpio에 미치는 암모니아 급성독성의 조직병리학적 연구)

  • YANG Han Choon;CHUN Seh-Kyu
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.19 no.3
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    • pp.249-256
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    • 1986
  • The carp (Cyprinus carpio) used in the experiment were hatched in the spring this year and reared to 5.96g($4.84{\sim}6.55g$) in mean weight in a nursery pond at Daeyon fish farm, Pusan, Korea. The sample fish were exposed to different conditions of total ammonia (TA-N) concentrations 10, 20 and 30ppm and pH 6.5, 7.0, 7.5 and 8.0 at water temperatures 20, 25 and $30^{\circ}C$ for 24, 48 and 72 hours. After the procedure, the gill, liver and kidney of the fish were examined histopathologically. In this experiment, with the rise of water temperature, increase of pH and ammonia concentration, and the extension of exposure time the three organs showed the tendency of apparent abnormal changes such as hypertrophy and necrosis in their tissues. At $20^{\circ}C$ of water temperature gill tissue did not show any abnormality regardless of the change of pH at 10 ppm of ammonia concentration for 24 hours of exposure, but beyond the conditions given above, there occurred hypertrophy and the epithelium of gill lamellae was detached. The detach of gill lamellae epithelium initiated from the proximal part of the gill lamellae then gradually spread toward the uppermost tip. The heavier vacuolation of the liver was observed with the rise of water temperature and pH, and such morbid state in the liver was considered to be the result of edema in the liver tissue. The kidney showed no damage to the renal tubule epithelium at pH 6.5, but it was damaged at pH 8.0 when exposed to 30 ppm ammonia at $20^{\circ}C$ for 24 hours.

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Physiological Responses of Common Carp (Cyprinus Capio) and Crucian Carp (Carassius Auratus) by Rapid Changes of Water Temperature (급격한 수온변화에 따른 잉어 (Cyprinus capio)와 붕어 (Carassius auratus)의 생리적 반응)

  • Moon, Jeong Suk;Hur, Jun Wook
    • Ecology and Resilient Infrastructure
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    • v.9 no.2
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    • pp.113-123
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    • 2022
  • The blood and physiological changes of common carp (Cyprinus carpio) and crucian carp (Carassius auratus) were analyzed when the water temperature was rapidly increased from 20℃ (control) to 26 and 32℃. The water temperature reached 26℃ and 32℃ within 6 hours from the water temperature of 20℃, and the control was maintained at 20℃ for the duration of the experiment. From each experimental group, blood was collected every 3, 12, 24 and 48 hours after the water temperature rise, and the red blood cell count, hemoglobin, hematocrit, Na+, K+, Cl-, cortisol, glucose, aspartate amino transferase (AST) and alanine amino transferase (ALT) contents were analyzed. In the case of the crucian carp experimental group where the water temperature was raised to 32℃, the concentrations of plasma cortisol, glucose, AST and ALT increased 3 hours after the water temperature rise, and the concentrations did not decrease until 48 hours (P<0.05). Plasma cortisol, glucose, AST, and ALT in both C. carpio and C. auratus in the control group and the experimental group raised to 26℃ increased at 3 hours after the water temperature rise (P<0.05), and decreased to the value before the water temperature rise at 48 hours (P<0.05). The plasma Na+, K+ and Cl- concentrations of C. carpio and C. auratus in the experimental group where the water temperature was raised to 32℃ were higher than in the 20 and 26℃ experimental groups. The blood reaction of all experimental groups including the control group showed a common trend in both C. carpio and C. auratus increasing up to 12 hours after the water temperature rise and then decreasing at 48 hours after the water temperature rise. The results derived from this study would be useful for investigating the physiological response of fish stress in future. In addition, as fish mortality has recently occurred frequently in rivers and lakes, it is judged that it can be used as basic data.

In vivo Metabolism of Endosulfan in Carp (cyprinus carpio L.) (In vivo 시험에 의한 잉어(cyprinus carpio L.)체내 endosulfan의 대사)

  • Lee, K.B.;Shim, J.H.;Suh, Y.T.
    • Applied Biological Chemistry
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    • v.37 no.3
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    • pp.194-202
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    • 1994
  • To study the metabolism and absorption of endosulfan in carp, $^{14}C-{\alpha}-endosulfan$ was treated with the $LC_{10}$ concentration $(4.5\;{\mu}g/L)$. In an in vivo test, endosulfan was metabolized $(65{\sim}80%)$ in tissues and endosulfan ether, endosulfan alcohol, endosulfan ${\alpha}-hydroxyether$, and endosulfan lactone were identified, indicating that those are the main metabolites of detoxification in carp. The maximum levels of $^{14}C-endosulfan$ in the head, muscle, and gut occurred after 8 hr exposure. However, the maxima reached in the liver and kidneys after 30 min and 4 hr, respectively. Radioactivity in the tissue decreased rapidly 8 hr after treatment. The total amount of $^{14}C-endosulfan$ recovered in the liver, kidneys and gut of fish was about $80{\sim}90%$ during the 8 hr treatment. The non-extractable radioactivity increased after 8 hr exposure $(27{\sim}31%)$. Endosulfan sulfate, the main degradation product in plant and mouse, was not detected during the test interval from tissues of the carp.

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Growth and Skin Color of Red- and White-colored Fancy Carp Cyprinus carpio var. koi Reared at Different Water Temperatures (사육수온에 따른 비단잉어 홍백(Cyprinus capio) 치어의 성장 및 체색 변화)

  • Kim, Yi-Oh;Oh, Sung-Yong;Lee, Sang-Min
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.50 no.3
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    • pp.257-262
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    • 2017
  • This study was conducted to investigate the growth and skin color of red- and white-colored fancy carp Cyprinus carpio var. koi juvenile reared at different water temperatures (21, 24, 27, and $30^{\circ}C$) for eight weeks. Two experimental diets were prepared to contain 10% Arthrospira platensis or 10% Arthrospira pacifica powder. After the feeding trial, survival was 100% in all group. Weight gain of fish reared at 24, 27, and $30^{\circ}C$ was higher than $21^{\circ}C$ group. Feed efficiency was not affected by water temperature and dietary Arthrospira sp. Daily feed intake tended to increase with water temperature. The $a^*$ value of skin coloration was affected by Arthrospira sp., but not by water temperature. Fish fed the diet containing A. pacifica powder reared at $27^{\circ}C$ had the highest $a^*$ value among the groups. Total carotenoids were highest in fish fed the diet containing A. pacifica powder reared at $21^{\circ}C$. Based on the results of this study, we conclude that 24-$30^{\circ}C$ water temperature was the optimal range for growth, and dietary inclusion of A. pacifica improved the skin redness of red- and white-colored fancy carp reared at $27^{\circ}C$.