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  • Blackwell Publishing Ltd  (10)
  • 1
    Electronic Resource
    Electronic Resource
    Description of a new Myxobolus species, M. colossomatis n. sp. from the teleost Colossoma macropomum of the Amazon River basin (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 9 (1993), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Myxobolus colossomatis n. sp. (Myxosporea) is described from a pond-cultured Amazon River fish (Colossoma macropomum). The parasite cysts developed in the connective tissue of the fins, gills, heart, liver and serous membranes around the intestine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1993.tb00388.x
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental induction of Sphaerospora renicola (Myxosporea) infection in common carp (Cyprinus carpio) by transmission of SB-protozoans (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 2 (1986), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The authors have experimental evidence that the protozoa causing the swimbladder inflammation (SBI) of the common carp (Cyprinus carpio) are indentical with presporogonic stages of Sphaerospora renicola Dyková et Lorn, 1982 parasitizing the renal tubules. Homogenates prepared from the thickened and inflamed swimbladder of naturally infected common carp, when injected into the abdominal cavity of fish, produced renal sphaerosporosis in the infection-free common carp if the homogenates contained the parasites described by Kovács-Gayer et al. (8). By intraperitoneal injection, the Unidentified Blood Organisms (UBOs) living in the blood of the common carp were transmissible to common carp, from the blood of which they were demonstrable for a long time. However, they were not transformed into Sphaerospora. To other cyprinids (gibel carp, silver carp, grass carp, tench, roach) neither the blood stages nor the swimbladder stages were transmissible from the common carp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1986.tb00433.x
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  • 3
    Electronic Resource
    Electronic Resource
    Mebendazole is an efficacious drug against pseudodactylogyrosis in the European eel (Anguilla anguilla) (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 3 (1987), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Our results show that mebendazole is an effective agent for controlling pseudodactylogyrosis. Exposure of the fish to a solution containing 100 mg/l mebendazole for 10 min killed Pseudodactylogyrus bini and P. anguillae; a mebendazole concentration of 1 mg/l produced the same effect after an exposure of 24 hours. Although the helminths suffered damage immediately after exposure to mebendazole, it took six days before they disappeared from the gills. For short (10 min) exposures, the efficacy of mebendazole was enhanced tenfold by previously exposing the eels (Anguilla anguilla) to saline (NaCl).〈section xml:id="abs1-2"〉〈title type="main"〉ZusammenfassungMebendazol als wirksames Medikament gegen die Pseudodactylogyrosis des Europäischen Aals (Anguilla anguilla)Mebendazol erwies sich als wirksam gegen Pseudodactylogyrus bini und P. anguillae. Das Präparat tötete die Parasiten in folgenden Dosen: 100 mg/l im Kurzzeitbad (10 Minuten) bzw. 1 mg/l im Langzeitbad (24 Stunden). Obwohl die Parasiten durch Mebendazol sofort geschädigt wurden, waren die Kiemen der Aale erst 6 Tage nach der Behandlung parasitenfrei. Ein vorangegangenes Kochsalzbad steigerte die Wirkung des Mebendazol auf das Zehnfache im Kurzzeitbad.〈section xml:id="abs1-3"〉〈title type="main"〉RésuméLe mebendazole comme médicament efficace contre la pseudodactylogyrose de l'anguille européenne (Anguilla anguilla)Le mebendazole s'est révéléêtre efficace pour le contrôle de la pseudodactylogyrose. Un séjour de 10 minutes des poissons dans une solution contenant 100 mg/l de mebendazole a tué les parasites Pseudodactylogyrus bini, et P. anguillae; un bain de 24 heures dans une concentration de mebendazole de 1 mg/l a produit le même effet. Bien que les parasites aient été immédiatement touchés par le mebendazole, cela a duré 6 jours avant qu'ils ne disparaissent des branchies des anguilles. En cas de bain de courte durée (10 minutes) l'efficacité du mebendazole a décuplé lorsque les anguilles (Anguilla anguilla) avaient été préalablement baignées dans une solution saline (NaCl).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1987.tb00539.x
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  • 4
    Electronic Resource
    Electronic Resource
    A skin disease of the eels caused by Myxobolus kotlami n. sp. (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 2 (1986), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In elvers (Anguilla anguilla) imported yearly to a fish farm in Hungary the regular occurrence of a Myxobolus infection was recorded. The parasite produces oval or spherical plasmodia of 0.1–0.2·0.07–0.12mm in the subcutaneous and intermuscular connective tissue of the head. In each piasmodium about 200 to 400 spores develop which differ morphologically from the spores of all Myxobolus species known from the eel and other fishes. Based upon the characteristic location of plasmodia and spore morphology, this parasite is described as a new species, Myxobolus kotlani.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1986.tb00428.x
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  • 5
    Electronic Resource
    Electronic Resource
    Light and electron microscopic studies on Epieimeria anguillae (Léger & Hollande, 1922), a coccidium parasitizing the European eel, Anguilla anguilla L. (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 9 (1986), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. The foregut of eels naturally infected by Epieimeria anguillae (Léger & Hollande, 1922) was studied by light and electron microscopy. It has been established that this parasite, which develops in a characteristic location on the surface of epithelial cells, and was classified on this basis by Dyková & Lom (1981) as a member of the genus Epieimeria, undergoes intracellular merogony and gamogony similarly to other eimerians; however, its sporogony takes place outside the fish or intercellularly. The trophozoites and merogonic and gamogonic stages each develop in a para-sitophorous vacuole which is half embedded in the epithelial cell and protrudes into the intestinal lumen. The parasitophorous vacuote is surrounded by a single membrane; however, towards the intestinal lumen it is covered also by the cell membrane. In its location, Epieimeria anguillae resembles cryptosporidia, but differs from the latter significantly in its relationship with the host cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1986.tb00988.x
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  • 6
    Electronic Resource
    Electronic Resource
    A light and electron microscopic study of the agent of carp mucophilosis (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 4 (1981), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. The authors failed to detect algae or fungi in the gills of carp showing the typical clinical signs of mucophilosis. Electron microscopic examination showed the presence of rickettsia- or chlamydia-like organisms, inside the characteristic mucophilus cysts. These organisms are believed to be the causative agents of mucophilosis. The organisms develop intracellularly in the gill epithelium and after several divisions give rise to mucophilus cysts 70–80 μm in diameter. The morphological and ultrastructural changes observed in the course of mucophilosis bear a striking resemblance to the cysts and cyst-inducing causative agents responsible for epitheliocystis disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1981.tb01140.x
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  • 7
    Electronic Resource
    Electronic Resource
    Studies into the possible protozoan aetiology of swimbladder inflammation in carp fry (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 7 (1984), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. Laboratory examinations of pond-reared common carp, Cyprinus carpio L., revealed a close correlation between the prevalence of swimbladder inflammation (SBI), renal sphaerosporosis and infection by C-blood-protozoan among the carp fry. In impression smears as well as light and electron microscopic preparations we detected developmental stages of intercellular protozoa, mainly in the loose fibrous tissue of the swimbladder. The parasites multiplied by internal budding so that 20–46 secondary cells were formed in each primary cell and two tertiary cells were formed in each secondary cell. The final stage of development was a unit consisting of a secondary cell enclosing two tertiary cells, i.e. a so-called triple formation, which bore a close resemblance to the early sporogonic stages of the renal sphaerosporan Sphaerospora angulata Fujita, 1912. Certain morphological similarities and the frequent simultaneous presence of the swimbladder protozoan, C-bloodprotozoan, and S. angulata in hosts with clinical SBI have led us to postulate that the former two parasites could represent the hitherto unknown presporogonic stages of S. angulata. In view of the pathological changes caused by the parasites in the hosts with clinical SBI, and negative bacteriological and virological findings we have postulated that the swimbladder protozoan is the primary cause of SBI in carp fry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1984.tb00905.x
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  • 8
    Electronic Resource
    Electronic Resource
    Renal sphaerosporosis in the common carp Cypnnus carpio L. (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 3 (1980), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. Sphaerospora angulata Fujita, 1912, has been identified as a frequent renal parasite of cultured carp populations in Hungary. Its prevalence ranged from 10 to 50% in the pond farms surveyed. The youngest carp infected were 21/2–3 months old. Infections were not common in one-summer fish and tended to become less frequent with increasing age of the host.The developing stages of S. angulata are found in the contorted tubules of the trunk-kidney but never invade the parenchymal tissue of the trunk or head-kidneys. The pansporoblasts developing in the wide proximal segment of the renal tubules, and the spores arising from the pansporoblasts are typically coelozoic parasites, for they apparently do not damage the tubular lining epithelium, nor its brush border. The main adverse effect of S. angulata is probably depression of resistance owing partly to deprivation of the host of nutrients secreted by the glomeruli and partly to mechanical obstruction of the distal tubular segments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1980.tb00179.x
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  • 9
    Electronic Resource
    Electronic Resource
    New coccidians from freshwater fishes of Australia (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 11 (1988), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. During a survey for coccidian infections of 135 Australian freshwater fish belonging to 14 species, two new Eimeria species, E. philypnodoni sp. nov. from Philypnodon grandiceps and E. ashburneri sp. nov. from Macquaria ambigua, and three new Goussia species, G. langdoni sp. nov, from Macquaria ambigua, G. callinani sp, nov. from Hypseteotris compressa and G. lomi sp. nov. from Maccullochella peeli, were found. Epieimeria anguillae and a Goussia sp. from Anguilla australis and A. reinhardti were recorded. These are the first records of coccidia from Australian fishes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1988.tb00535.x
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  • 10
    Electronic Resource
    Electronic Resource
    Presporogonic development of Sphaerospora renicola Dyková & Lorn, 1982, in the swimbladder of the common carp, Cyprinus carpio L. (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 11 (1988), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. The prcsporogonic developmental stages of Sphaerospora renicola, the causative agent of swimbladder inflammation (SBI), develop in the swimbladder of common carp by multiple internal cleavage. The earliest development stage is the secondary cell enclosed by the primary cell. The secondary cells undergo multiple amitotic division within the mother cell and the dividing forms are connected by narrow cytoplasmic bridges. As a result of further internal cleavage, two tertiary cells appear in each secondary cell. The triple formation enclosing a secondary and two tertiary cells is identical with the pansporoblast containing two sporoblasts which occurs in the renal tubules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1988.tb00748.x
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