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Journal articles on the topic 'Myxosporidien'

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Published: 4 June 2021

Last updated: 10 February 2022

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1

Tombi, J., and Charles F. Bilong Bilong. "Répartition des parasites branchiaux du poisson d’eau douce Barbus martorelli Roman, 1971 (Teleostei : Cyprinidae) et tendance à une évolution d’intensité contraire des myxosporidies et des monogènes en fonction de l’âge de l’hôte." Revue d’élevage et de médecine vétérinaire des pays tropicaux 57, no. 1-2 (January 1, 2004): 71. http://dx.doi.org/10.19182/remvt.9909.

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L’étude de la parasitofaune branchiale de 558 Barbus martorelli a été menée dans un cours d’eau douce aux alentours de Yaoundé (Cameroun) en milieu tropical, afin d’obtenir des informations sur la répartition des agents pathogènes dans une population d’hôtes sauvages ; ces données sont indispensables dans la recherche de moyens pour éviter les pertes énormes souvent observées en pisciculture intensive. Cette analyse a révélé la présence de deux espèces de myxosporidies (Myxobolus barbi et M. njinei) et de huit espèces de monogènes (Dactylogyrus bopeleti, D. insolitus, D. simplex, D. maillardi, Dogielius martorellii, Dogielius sp., une espèce de Gyrodactylidae et une larve de Polystomatidae). Quatre poissons n’ont pas présenté de parasites, 24 ont présenté une infection monospécifique et 530 une infection plurispécifique. Chaque individu infesté a hébergé en moyenne quatre espèces de parasites. Alors que la prévalence et l’intensité moyenne parasitaire diminuaient avec la taille de l’hôte pour les protozoaires, le phénomène inverse a été observé pour les helminthes. L’effet sexe a été noté dans l’infestation de B. martorelli par la myxosporidie M. njinei et par la plupart des espèces de monogènes. Les femelles ont ainsi été plus infestées que les mâles en raison de leur biologie en période de frai. Enfin, la richesse des espèces parasitaires a semblé affecter négativement le poids des hôtes.

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2

CARDIM, JOYCE, DIEHGO SILVA, IGOR HAMOY, EDILSON MATOS, and FERNANDO ABRUNHOSA. "Myxobolus bragantinus n. sp. (Cnidaria: Myxosporea) from the gill filaments of the redeye mullet, Mugil rubrioculus (Mugiliformes: Mugilidae), on the eastern Amazon coast." Zootaxa 4482, no. 1 (September 17, 2018): 177. http://dx.doi.org/10.11646/zootaxa.4482.1.9.

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Mullets (Mugilidae) are economically-important fish exploited extensively by artisanal fisheries on the Amazon coast of Brazil. In the present study, 150 specimens of redeye mullet (Mugil rubrioculus) acquired from the public fish market were examined, and the gill filaments of 90 (60%) were found to be infected with spores of Myxobolus. The mature spores were spherical, with a mean diameter of 6.28±0.33 μm, and had polar capsules of equal size (2.47±0.34 μm in length and 1.58±0.27 μm in width). The 18S rRNA sequence of the parasite was compared with those of other myxosporidian species available in the GenBank database. The morphological and molecular characteristics of the parasite indicate strongly the existence of a new species, denominated Myxobolus bragantinus n. sp., the first case of a new myxosporidian species to be found in this host. [Zoobank: urn:lsid:zoobank.org:act:E00F72E1-9302-423F-BA4E-51C05D0770C8]

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3

Korczynski, RE. "Myxosporidian parasite in the isopod Mesidotea entomon." Diseases of Aquatic Organisms 5 (1988): 107–10. http://dx.doi.org/10.3354/dao005107.

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4

Bursey, C. R. "MYXOSPORIDIAN LESIONS OF THE SHEEPSHEAD MINNOW (CYPRINODON VARIEGATUS)." Journal of Wildlife Diseases 23, no. 4 (October 1987): 572–75. http://dx.doi.org/10.7589/0090-3558-23.4.572.

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5

Romuk-Wodoracki, Dariusz. "Myxobilatus gasterostei (Parisi, 1912) the myxosporidia species new for Poland." Acta Ichthyologica et Piscatoria 19, no. 2 (December 31, 1989): 37–40. http://dx.doi.org/10.3750/aip1989.19.2.04.

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6

QADRI, SYED SHAMSUDDIN. "NEW MYXOSPORIDIA FROM SOME BRITISH FRESHWATER FISHES*." Proceedings of the Zoological Society of London 139, no. 2 (August 20, 2009): 329–35. http://dx.doi.org/10.1111/j.1469-7998.1962.tb01832.x.

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7

Ghaffar, Fathy Abdel, Gamal El-Shahawi, and Sedigh Naas. "Myxosporidia infecting some Nile fishes in Egypt." Parasitology Research 81, no. 2 (1995): 163–66. http://dx.doi.org/10.1007/bf00931624.

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8

DESPORTES-LIVAGE, ISABELLE, and GISELE NICOLAS. "The Plasma Membrane of Myxosporidian Valve Cells: Freeze Fracture Data." Journal of Protozoology 37, no. 3 (May 1990): 243–49. http://dx.doi.org/10.1111/j.1550-7408.1990.tb01135.x.

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9

MITANI, Munehisa, Terukazu GOSHIMA, and Michio KISHIDA. "Jellide Mackerel Meat Probably due to Myxosporidium Infection." Journal of the Japan Veterinary Medical Association 51, no. 1 (1998): 35–36. http://dx.doi.org/10.12935/jvma1951.51.35.

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10

Cheng, Thomas C. "Myxosporidia of the USSR.S. S. Shul'man, S. Sharma." Quarterly Review of Biology 66, no. 1 (March 1991): 99. http://dx.doi.org/10.1086/417105.

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11

Toyohara, Haruhiko, Masato Kinoshita, Ikuo Kimura, Mikio Satake, and Morihiko Sakaguchi. "Cathepsin L-like Protease in Pacific hake Muscle Infected by Myxosporidian Parasites." NIPPON SUISAN GAKKAISHI 59, no. 6 (1993): 1101. http://dx.doi.org/10.2331/suisan.59.1101.

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12

Madhavan, Remya, Probir K. Bandyopadhyay, and B. Santosh. "Observations on the histopathological changes caused by myxosporidian infections in minor carps." Journal of Parasitic Diseases 37, no. 2 (September 28, 2012): 185–88. http://dx.doi.org/10.1007/s12639-012-0159-3.

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13

LEKEUFACK FOLEFACK, Guy Benoit, Chanceline MALA KENGNE, Bienvenu FEUDJIO DONGMO, and Abraham FOMENA. "Prevalence and Mean Intensity of Myxobolus spp. Parasitizing Oreochromis niloticus in Cameroon." International Journal of Biology 11, no. 2 (March 4, 2019): 35. http://dx.doi.org/10.5539/ijb.v11n2p35.

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Oreochromis niloticus, being one of the most commonly cultured fish on earth constitutes a favorable biotope for myxosporidia. This study provides information concerning the prevalence and mean intensity of Myxobolus species recorded in the kidney and spleen of O. niloticus. O. niloticus were sampled in farming ponds at Bamendou in Cameroon. Classic methods concerning fishing, fish autopsy and search of Myxosporidia were used. Prevalence and mean intensity was calculated. Data analysis based on the chi-square test, Kruskal-Wallis H test and Mann-Whitney U test was done. The study revealed the presence of six Myxobolus species in the kidney and spleen of O. niloticus. All parasites species appeared frequent while their mean intensity was low or very low. The occurrence of M. fotoi was statistically lower (P < 0.05) in the kidney’s anterior portion while the mean intensity of M. agolus was statistically (P < 0.01) higher in the anterior portion of the spleen. Myxobolus cichlidarum was not found in kidney of young fish and occurrence of M. agolus statistically increases (P < 0.05) with host age. Host sex has significant influence (P < 0.05) on: occurrence of M. agolus, M. fotoi, M. agolus, M. brachysporus and M. heterosporus; and mean intensity of M. fotoi. The study revealed that in O. niloticus, the kidney and spleen harboured the same parasites species and there were only few variations in occurrences and mean intensities of parasites species recorded as function of host organs, age and sex.

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14

Fall, M., K. P. Kpatcha, C. Diebakate, N. Faye, and B. S. Toguebaye. "Observations sur des myxosporidies (Myxozoa) du genreMyxobolusparasites deMugil cephalus(Poisson, Téléostéen) du Sénégal." Parasite 4, no. 2 (June 1997): 173–80. http://dx.doi.org/10.1051/parasite/1997042173.

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15

Sindeaux-Neto, J. L., M. Velasco, P. Santos, P. Matos, and E. Matos. "Infection of the muscle tissue of the filter-feeding cichlid, Chaetobranchopsis orbicularis Steindachner, 1875, by Kudoa orbicularis (Myxozoa: Multivalvulidae) on Marajó Island in the Brazilian Amazon region." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 69, no. 6 (November 2017): 1601–6. http://dx.doi.org/10.1590/1678-4162-8989.

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ABSTRACT This study describes aspects of infections caused by the myxosporidian Kudoa orbicularis in filter-feeding cichlids, Chaetobranchopsis orbicularis, caught in the Arari River in the municipality of Cachoeira do Arari, on Marajó Island, Pará, Brazil. The parasite forms pseudocysts scattered throughout the striated epaxial and hypaxial muscles. Samples embedded in paraffin were analyzed histologically using hematoxylin-eosin, Gömöri, Ziehl-Neelsen, and Giemsa staining. Necropsy of the C. orbicularis specimens revealed that 100% (50/50) were infected with K. orbicularis. The specimens presented grossly abnormal muscle texture, resulting in extensive inconsistencies and weakness. Progressive softening of the muscles was observed during necropsy, indicating the rapid enzymatic autolysis of the tissue. The parasite found in the muscle tissue of C. orbicularis was identified as K. orbicularis, with clinical signs of disease being observed in the fish. The necropsy revealed extensive damage to the host organism, with well-established fibrocystic infections in the muscle fibers, associated with post mortem myoliquefaction.

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16

Bennett, R. O., and R. E. Wolke. "A Sphaerospora-like Myxosporidean from the Kidneys of Atlantic Salmon (Salmo salar)." Journal of Wildlife Diseases 22, no. 2 (April 1986): 268–71. http://dx.doi.org/10.7589/0090-3558-22.2.268.

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17

Somatkar, JR, and D. S. Dabhade. "Myxosporidian parasites of the genus Thelohanellus from different freshwater fi shes of Washim, Maharashtra region." Bioscience Biotechnology Research Communications 9, no. 1 (March 25, 2016): 144–50. http://dx.doi.org/10.21786/bbrc/19.1/22.

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18

Lekeufack-Folefack, Guy Benoit, Bienvenu Feudjio-Dongmo, Abraham Fomena, Billy Tene-Fossog, and Murielle J. Wondji. "An Optimized Protocol for Myxosporidia (Cnidaria: Myxosporea) DNA Extraction for Molecular Studies." Open Journal of Animal Sciences 10, no. 03 (2020): 378–86. http://dx.doi.org/10.4236/ojas.2020.103023.

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19

Roubal, FR, J. Masel, and RJG Lester. "Studies on Marteilia sydneyi, agent of QX disease in the Sydney rock oyster, Saccostrea commercialis, with implications for its life cycle." Marine and Freshwater Research 40, no. 2 (1989): 155. http://dx.doi.org/10.1071/mf9890155.

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An indirect fluorescent antibody test (IFAT) was developed to test for mature and immature stages of Marteilia sydneyi in the digestive gland of the Sydney rock oyster, Saccostrea commercialis. Immunogold labelling of sections for electron microscopy showed that the sporont membrane, refringent granules, spore wall and haplosporosomes were particularly antigenic. The antibody did not react with any myxosporidean parasite found in local fish. Large numbers of sporonts were shed by infected oysters before oyster death. Lightly infected oysters were apparently able to shed all of their parasites and recover. Refringent granules were proteinaceous and an unlikely energy source for the shed parasite. Growth of the sporont was associated with the enlargement and production of refringent granules. The findings implicate filter-feeding or detritivorous invertebrates rather than scavenging invertebrates or fish in the life cycle of Marteilia parasites.

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20

Kpatcha, T. K., C. Diebakate, N. Faye, and B. S. Toguebaye. "Quelques nouvelles espèces de Myxosporidies, du genreCeratomyxaThélohan, 1895 parasites des poissons marins du Sénégal, Afrique de l'Ouest." Parasite 3, no. 3 (September 1996): 223–28. http://dx.doi.org/10.1051/parasite/1996033223.

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21

Adlerstein, S. A., and M. W. Dorn. "The effect of Kudoa paniformis infection on the reproductive effort of female Pacific hake." Canadian Journal of Zoology 76, no. 12 (December 1, 1998): 2285–89. http://dx.doi.org/10.1139/z98-164.

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The effect of the myxosporidean Kudoa paniformis on the annual reproductive effort of the coastal stock of Pacific hake (Merluccius productus), on which it is a common parasite, is investigated. Female Pacific hake collected off the central Oregon coast in December 1988 were analyzed for prevalence and intensity of parasites. Reproductive effort was estimated by the number of yolked oocytes present in the ovaries immediately prior to spawning (potential annual fecundity), using the volumetric method. The effect of the parasite was evaluated through an analysis of covariance where fecundity was modeled as a function of fish length and parasite prevalence. An additional analysis of covariance evaluated the effect of the intensity of parasite infection on fecundity. Results show that the fecundity of Pacific hake is significantly reduced in the presence of K. paniformis infections and that the detrimental effect escalates with the intensity of infection. The potential effects on the population dynamics of the Pacific hake coastal stock are discussed.

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22

Koehler, Anne, Patricia Romans, Sherwin Desser, and Maurice Ringuette. "ENCAPSULATION OF MYXOBOLUS PENDULA (MYXOSPORIDIA) BY EPITHELIOID CELLS OF ITS CYPRINID HOST SEMOTILUS ATROMACULATUS." Journal of Parasitology 90, no. 6 (December 2004): 1401–5. http://dx.doi.org/10.1645/ge-3404.

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23

HOLZER, A. S., and O. SCHACHNER. "Myxosporidia and macrophage centres in chub (Leuciscus cephalus)–quantitative interactions focus on Myxobolus cyprini." Parasitology 122, no. 1 (January 2001): 55–62. http://dx.doi.org/10.1017/s003118200000706x.

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Six myxosporidian species were found in chub (Leuciscus cephalus) originating from Lower Austrian rivers. The frequency of the parasites and their localization was recorded. In all chub, independent of size and origin, Myxobolus cyprini occurred predominantly in the macrophage centres (MCs) of the haematopoietic organs, spleen and kidney. Exclusively in the head kidney of young fish not yet described vermicular plasmodia containing spores of M. cyprini were found. In muscle tissue the prevalence of M. cyprini was comparatively low. Other species of Myxobolus characterized by plasmodial cysts frequently occurred in gills and swimbladder but were rarely detected, and only in small numbers, in the haematopoietic organs. The number of M. cyprini spores and the relative volume of MCs in the haematopoietic organs were estimated in order to examine possible correlations. Significant interrelated changes were found only in juvenile fish up to a size of 15cm. In bigger fish, the number and size of macrophage aggregates were highly variable and independent of infection intensity and fish size, but the number of spores never exceeded that of the aggregated macrophages. The data suggest that due to an early date of infection M. cyprini is the only species which is closely associated with macrophage aggregation.

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24

Toyohara, Haruhiko, Masato Kinoshita, Ikuo Kimura, Mikio Satake, and Morihiko Sakaguchi. "Naturally Occurring Heat-stable Inhibitors for Cathepsin L-like Protease from Pacific Hake Muscle Infected by Myxosporidian Parasites." Fisheries science 61, no. 3 (1995): 531–32. http://dx.doi.org/10.2331/fishsci.61.531.

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25

Mutschmann, F. "Pathological changes in African hyperoliid frogs due to a myxosporidian infection with a new species of Hoferellus (Myxozoa)." Diseases of Aquatic Organisms 60 (2004): 215–22. http://dx.doi.org/10.3354/dao060215.

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26

CORLISS, JOHN O. "Consideration of Taxonomic-Nomenclatural Problems Posed by Report of Myxosporidians with a Two-Host Life Cycle1." Journal of Protozoology 32, no. 4 (November 1985): 589–91. http://dx.doi.org/10.1111/j.1550-7408.1985.tb03083.x.

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27

Fantham, H. B., and Annie Porter. "5. On a Myxosporidian. Sphaerosporn periophthalmi, sp. n., found in African and Indian Mudskippers (Pisces), and its possible significance." Proceedings of the Zoological Society of London B112, no. 3-4 (August 21, 2009): 113–19. http://dx.doi.org/10.1111/j.1469-7998.1943.tb08494.x.

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28

Narasimhamurti, C. C., and C. Kalavati. "A New Myxosporidian, Myxobolus bivacuolatus n. sp., Parasitic in the Intestinal Wall of the Fresh Water Fish, Clarius batrachs." Archiv für Protistenkunde 131, no. 1-2 (January 1986): 153–57. http://dx.doi.org/10.1016/s0003-9365(86)80073-2.

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29

STOFFREGEN, D. A., and W. I. ANDERSON. "A myxosporidian parasite in the skeletal muscle of a black-tip reef shark, Carcharhinus melanopterus (Quoy and Gaimard, 1824)." Journal of Fish Diseases 13, no. 6 (November 1990): 549–52. http://dx.doi.org/10.1111/j.1365-2761.1990.tb00817.x.

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30

Sarkar, N. K., S. K. Mazumder, and A. Pramanik. "Observations on 4 new species of myxosporidia (Myxozoa) from channid (Ophicephalid) fishes of West Bengal, India." Archiv für Protistenkunde 130, no. 3 (January 1985): 289–96. http://dx.doi.org/10.1016/s0003-9365(85)80066-x.

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31

Das, M. K., and D. P. Haldar. "Studies on Protozoan Parasites from Fishes: Two New Species of the Genus Neothelohanellus n. gen. (Myxosporidia)." Archiv für Protistenkunde 132, no. 1-2 (January 1986): 125–30. http://dx.doi.org/10.1016/s0003-9365(86)80015-x.

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32

Kazarnikova, A. V., T. V. Strigakova, N. E. Bojko, E. S. Bortnikov, L. P. Rurhinskaya, P. Beraldo, O. Byadgi, and M. Galeotti. "About invasion of grey mullet by myxosporidia Myxobolus episquamalis at Kerchenskyi preglass of the Black sea." "Veterinary Medicine" Journal 22, no. 2 (February 2019): 29–35. http://dx.doi.org/10.30896/0042-4846.2019.22.2.29-35.

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33

Manrique, Wilson G., Gustavo S. Claudiano, Mayra A. P. Figueiredo, Thalita R. Petrillo, Julieta R. E. Moraes, and Flávio R. de Moraes. "Myxosporidiosis in intensively-reared Piaractus mesopotamicus: Histopathological diagnosis by means of Ziehl-Neelsen staining." Pesquisa Veterinária Brasileira 32, no. 11 (November 2012): 1133–37. http://dx.doi.org/10.1590/s0100-736x2012001100010.

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Samples of different organs from intensively-reared Piaractus mesopotamicus were collected and processed using routine histological techniques in order to produce thin sections for staining with hematoxylin-eosin and with the Ziehl-Neelsen method. Through examination under an optical microscope, myxosporidians of the genera Henneguya sp. and Myxobolus sp. were identified, respectivelyin the gills and kidneys of P. mesopotamicus. Plasmodia with immature spores of Henneguya sp. were located along the secondary lamellae, with total length of 30.45±4.84µm and width of 3.52±0.33µm. Spores of Myxobolus sp. were located in the kidneys, with total length of 8.94±0.82µm and width of 5.59±0.39µm. Histopathological analysis of the gills showed plasmodia containing spores of Henneguya sp., at intralamellar and intravascular localities, at different stages of development. Spores of Myxobolus sp. were identified in the kidneys, in the peritubular region and in the interstices and glomerulus, surrounded by melanomacrophages. Focal hemorrhage was recorded in a few cases. Ziehl-Neelsen staining allowed to identify particular features of the spores and facilitated biometry and enabled classification in comparison with hematoxylin-eosin, thus demonstrating its usefulness for histopathological diagnosis of the parasitosis.

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34

Fomena, A., Farikou-Oumarou, C. Tang, and G. Bouix. "Thelohanellus njinein. sp. etT. lagdoensisn. sp., Myxosporidies (Myxozoa : Myxosporea) parasites des Schilbeidae et Citharinidae (Poissons Téléostéens) au Cameroun (Afrique Centrale)." Parasite 14, no. 2 (June 2007): 113–19. http://dx.doi.org/10.1051/parasite/2007142113.

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35

Aguinaga, Jefferson Yunis, Paulo Fernandes Marcusso, Gustavo da Silva Claudiano, Bruno Tadeu Marotta Lima, Fernanda de Alexandre Sebastião, João Batista Kochenborger Fernandes, Flávio Ruas de Moraes, and Julieta Rodini Engracia de Moraes. "Parasitic infections in ornamental cichlid fish in the Peruvian Amazon." Revista Brasileira de Parasitologia Veterinária 24, no. 1 (March 2015): 82–86. http://dx.doi.org/10.1590/s1984-29612014076.

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The aim of this study was to evaluate the prevalence and seasonal distribution of the main parasite species in Amazonian ornamental cichlids that affect their trade. The study was conducted from August 2007 to September 2009. We sampled 3042 specimens from 9 different species, of which 9.47% had at least one type of external parasite. 81.25% of the cases occurred in the dry season. Crenicichla anthurus (28.57%) was the most parasitized, followed by Aequidens diadema (26.32%), Pterophyllum scalare (22.69%), Cichlasoma sp. (9.52%), Apistogramma sp. (3.88%) and Symphysodon aequifasciatus (3.66%). Monogenea was the most abundant group of parasites, occurring in 66.67% of the cases, of which 96.88% occurred in the dry season. This parasite infested 95.68% of Pterophyllum scalare, 76.67% of Apistogramma sp, 33.33% of Cichlasoma sp. and 23.81% of Symphysodon aequifasciatus cases. Ichthyophthirius multifiliis infested 100% of Aequidens diadema, 76.19% of Symphysodon aequifasciatus, 66.67% of Cichlasoma sp, 41.67% of Crenicichla anthurus and 23.33% of Apistogramma sp cases. Myxosporidia infested 58.33% of Crenicichla anthurus. Trichodina infested 4.32% of Pterophyllum scalare. The prevalence of these parasites is related to the season, preferred habitat, fish behavior, individual susceptibility and handling of animals during transportation by fishermen.

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36

Citra Pratiwi, Harini, and Abdul Manan. "Teknik Dasar Histologi pada Ikan Gurami (Osphronemus gouramy) [ The Basic Histology Technique of Gouramy Fish (Osphronemus gourami)]." Jurnal Ilmiah Perikanan dan Kelautan 7, no. 2 (January 13, 2019): 153. http://dx.doi.org/10.20473/jipk.v7i2.11199.

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Abstract Histology is science that learns about cell,organ, and body tissues in a microscopic condition. Whereas science that learns about morbidity or patology of a tissue that’s called as histopatology. Both of normal tissue’s structure and abnormal tissue’s stucturecan be learned by microscopic in a tissue preparation. This preparation made through processing of tissue until the preparation coloured. Then histology’s structure can be watched clearly so that make it easy to read. Field Work Practice purpose (PKL) this is to know the basic histoloy technique in fish. This Field Work Practice was held in Balai Uji Standar Karantina Ikan Pengendalian Mutu dan Keamanan Hasil Perikanan (BUSKIPM) Jl. Harapan I No. 01A Cilangkap, East Jakarta on 14th January 2013 until 14th February 2013. The method of this Field Work Practice is descriptive method by collecting data through primary data and secondary data. The histology technique in fish are tissue fixation, trimming (tissue selection), tissue dehydration, the tissue block making, tissue cutting, tissue colouring, and tissue observation. From the result got from the gourami’s tissue, there are edema and infestation of metacercaria parasites and myxosporidia in gill normal intestine tissue, normal liver tissue, and normal spleen tissue

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37

Казарникова, А. В. "АНАЛИЗ ЭПИЗООТИЧЕСКОГО СОСТОЯНИЯ РЫБ ДЕЛЬТЫ ДОНА И ВОСТОЧНОЙ ЧАСТИ ТАГАНРОГСКОГО ЗАЛИВА В СОВРЕМЕННЫХ УСЛОВИЯХ, "Наука юга России"." Science in the South of Russia, no. 1 (2021): 97–108. http://dx.doi.org/10.7868/s25000640210109.

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Обобщены сведения по зараженности паразитами сельди Alosa immaculate, тарани Rutilus rutilus, судака Sander lucioperca, сазана Cyprinus carpio, карася серебряного Carassius gibelio, леща Abramis brama, бычка-сирмана Ponticola syrman, бычка-песочника Neogobius fluviatilis, бычка-кругляка N. melanostomum на основании собственных и литературных данных. Спектр паразитических организмов у рыб в дельте р. Дон и восточной части Таганрогского залива в 2019–2020 гг. включал представителей 9 классов: по 1 виду Myxrosporea, Peritricha, Bivalvia, по 3 вида Myxosporidia и Cestoda, 10 видов Monogenea, 6 видов Trematoda, 4 вида Nematoda и 5 видов Crustacea. В общей сложности у представителей азовской ихтиофауны выявлено 33 вида и не определенных до вида паразитов, из которых доминирующее положение (81 %) занимали пресноводные виды. Состав паразитов обследованных рыб отличался низким видовым разнообразием, количественные показатели – широкой вариабельностью. Выявлены потенциально патогенные для здоровья рыб виды (Myxobolus sandrae, Dactylogyrus extensus, D. vastator, Diplozoon paradoxum, Gyrodactylus sprostonae, Ancyrocephalus paradoxus, Caryophyllaeus laticeps, Khawia sinensis, Diplostomum spathaceum, Unionidae gen. sp., Achtheres percarum). Дан анализ эпизоотологической ситуации в дельте р. Дон и в восточной части Таганрогского залива и выделены возбудители, вызывающие заболевания рыб (Ligula intestinalis, Digramma interrupta), животных и человека (Apophallus donicus, Cryptocotyle concava, C. lingua, Hysterothylacium aduncum, Eustrongylides excisus).

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38

Kabre, G. B., N. G. Sakiti, A. Marques, and L. Sawadogo. "Thelohanellus bicornein. sp. Myxosporidie (Myxosporea, Bivalvulida) parasite des branchies deLabeo coubieRüppel, 1832 (Osteichthyen, Cyprinidae) au Burkina Faso, Afrique de l'Ouest." Parasite 9, no. 3 (September 2002): 219–23. http://dx.doi.org/10.1051/parasite/2002093219.

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Benajiba, M. Hassan, Adam Marques, and Georges Bouix. "Ultrastructural data on the sporogenesis of Myxidium giardi, cépède 1906 (Myxozoa, Myxosporidia), parasite of Anguilla anguilla (Teleostea)." European Journal of Protistology 29, no. 2 (May 1993): 254–61. http://dx.doi.org/10.1016/s0932-4739(11)80280-4.

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40

Fall, M., A. Fomena, B. Kostoïngué, C. Diebakate, N. Faye, and B. S. Toguebaye. "Myxosporidies (Myxozoa, Myxosporea) parasites des poissons Cichlidae du Cameroun, du Sénégal et du Tchad avec la description de deux nouvelles espèces." Annales des Sciences Naturelles - Zoologie et Biologie Animale 21, no. 3 (July 2000): 81–92. http://dx.doi.org/10.1016/s0003-4339(00)01019-4.

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Fomena, A., Abakar-Ousman, P. Ngassam, and G. Bouix. "Description de trois espèces nouvelles de Myxosporidies (Myxozoa : Myxosporea) parasites deCitharinus citharus(Geoffroy Saint-Hilaire, 1809) (Citharinidae) au Tchad (Afrique Centrale)." Parasite 11, no. 1 (March 2004): 83–88. http://dx.doi.org/10.1051/parasite/200411183.

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Sarkar, N. K. "Studies on Myxosporidian Parasites (Myxozoa: Myxosporea) from Marine Fishes in West Bengal, India. II. Description of Two New Species from Tachysurus platystomus (Day)." Archiv für Protistenkunde 133, no. 1-2 (January 1987): 151–55. http://dx.doi.org/10.1016/s0003-9365(87)80048-9.

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43

Chen, S.-C., R.-J. Kou, C.-T. Wu, P.-C. Wang, and F.-Z. Su. "Mass mortality associated with a Sphaerospora-like myxosporidean infestation in juvenile cobia, Rachycentron canadum (L.), marine cage cultured in Taiwan." Journal of Fish Diseases 24, no. 4 (May 18, 2001): 189–95. http://dx.doi.org/10.1046/j.1365-2761.2001.00287.x.

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44

Voropaeva, Ekaterina Leonidovna, and Elizaveta L'vovna Liberman. "ANNUAL VARIABILITY OF ACIPENSER RUTHENUS MARSIGLII PARASITES IN LOWER RICHES OF IRTYSH RIVER." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2020, no. 4 (December 30, 2020): 49–56. http://dx.doi.org/10.24143/2073-5529-2020-4-49-56.

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The article gives the analysis of infestation of Siberian sterlet Acipenser ruthenus marsiglii by parasites in the Lower Irtysh within 2017 to 2019. The annual changes in the species composition of parasites and in quantitative indicators of the fish infestation were revealed. In 2017 there were found 10 species of parasites, of which 4 were specific: Trypanoplasma acipenseris, Haemogregarina acipenseris, Acrolichanus auriculatum, Capillospirura ovotrichuria; in 2018 - 11 species, of which 6 were specific: T. acipenseris, H. acipenseris, Sphaerospora colomani, A. auriculatum, Truttaedacnitis clitellarius, Capillospirura itrichura; in 2019 - 7 species of parasites, of which 4 were specific: T. acipenseris, H. acipenseris, S. colomani, A. auriculatum. Of the broadly specific parasites, 6 species have been recorded: Trichodina acuta, Trichodina nigra, Trichodina sp., Diplostomum chromatophorum, Piscicola geometra, Unionidae gen. sp. In Siberian starlet blood there were registered T. acipenseris and H. acipenseris in all years of research. An increased extensiveness of invasion by these parasites was established. A significant decrease in infection with A. auriculatum trematode was found. The nematode C. ovotrichuria was recorded in sterlet only in 2017 and 2018. High values of infestation with Trichodina acuta, Trichodina nigra, Trichodina sp.were recorded. Myxosporidium Sphaerospora colomani was first recorded in the Ob-Irtysh basin. It has been suggested that the annual changes in the species composition of sterlet parasites are associated with the direct impact of the temperature regime and fluctuations in the level of the Irtysh basin

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Romanov, Vladimir Ivanovich, Vladimir Anatolyevich Zadelenov, Yulia Konstantinovna Chugunova, Oksana Gennad’evna Karmanova, and Vladimir Vladimirovich Lukyantsev. "Modern characteristics of mass fish species and their parasites in polar reservoirs of the Yenisei basin (on the example of Khantaiskoye)." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 11 (November 1, 2020): 6–19. http://dx.doi.org/10.33920/sel-09-2011-01.

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Fisheries research was carried out on the Khantayskoye reservoir in 1977–2020. This article presents the results of these works. In the first years after the flooding of the Khantayskoye reservoir, pike and common species of whitefishes (Siberian vendace, peled and whitefishpyzhyan) constituted the basis of the fishery. The share of other fish (carp, burbot, perch) was insignificant. The sharp increase in the food supply for planktophages and benthophages was short-term. Trophic depression began to appear in the early 80s (3–5 years from the moment the reservoir was filled). From this moment to the present time, whitefish species have a slowdown in linear and weight growth, an increase in the timing of puberty, a decrease in fertility. Of the whitefish fish, only Siberian vendace and whitefish are present in the fishery, the numbers of which have significantly decreased. Since the mid-2000s, the number of peled has decreased significantly and this species of fish has become rare in the reservoir. . Currently, there is a relatively high number of pike. Roach, ide, pike and perch actively mastered the channel of Kontiki, where before was practically absent. The increased number of these species affects the number of whitefish in their spawning areas, and their reproduction, including the safety of eggs.The parasite fauna of the main commercial fish species of the Khantayskoye reservoir was investigated. The most pathogenic were myxosporidia Henneguya zschokkei (Gurley, 1894), the causative agent of peptic ulcer disease in whitefishes.

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Kaur, Harpreet, and Ranjeet Singh. "One new myxosporidian species, Myxobolus slendrii sp. nov., and one known species, M. punjabensis Gupta and Khera, 1989, infecting freshwater fishes in wetlands of Punjab, India." Parasitology Research 106, no. 5 (February 24, 2010): 1043–47. http://dx.doi.org/10.1007/s00436-010-1746-9.

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Morsy, Kareem, Margit Semmler, Ebtsam Al-Olayan, and Heinz Mehlhorn. "Henneguya collaris sp. nov., (Myxosporidia), parasite of the Greenband Parrotfish Scarus collana Rüppell, 1835 (Actinopterygii, Scaridae) from the Red Sea, Egypt. A light and electron microscopic study." Parasitology Research 115, no. 6 (April 8, 2016): 2253–61. http://dx.doi.org/10.1007/s00436-016-4968-7.

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Lekeufack Folefack, GB, and A. Fomena. "Structure et dynamique des infracommunautés de Myxosporidies parasites de Ctenopoma petherici GÜNTHER, 1864 (Anabantidae), Clarias pachynema BOULENGER, 1903 (Clariidae) et Hepsetus odoe (BLOCH, 1794) (Hepsetidae) dans la rivière Sangé au Cameroun." International Journal of Biological and Chemical Sciences 7, no. 6 (May 16, 2014): 2301. http://dx.doi.org/10.4314/ijbcs.v7i6.11.

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Liberman, E. L., E. L. Voropaeva, and S. A. Kozlov. "Parasitofauna of pike Esox lucius of the Lower Tobol (Russia)." Biosystems Diversity 27, no. 3 (October 23, 2019): 214–20. http://dx.doi.org/10.15421/011929.

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One of the predators of the ichthyofauna of the Lower Tobol is Esox lucius (Linnaeus, 1758) (Esociformes, Esocidae). The purpose of this work is to study the current state of the E. lucius parasite fauna in the lower reaches of the Tobol River. In the present study 47 individuals of the northern pike of different sex aged from 2+ to 8+ years were examined by the method of complete parasitological dissection. As a result of the research, 23 types of parasites were found in the pike. The largest number of species of parasitic organisms – 20 – were found in May, 12 were found in December and 11 in September. Of these, 10 species are specific to northern pike: Haemogregarina esoci (Nawrotzky, 1914), Chloromyxum esocinum (Dogiel, 1934), Myxidium lieberkuhni (Biitschli, 1882), Myxosoma anurum (Cohn, 1895), Henneguya psorospermica (Thelohan, 1995), Tetraonchus monenteron (Wagener, 1857), Gyrodactylus lucii (Kulakowskaja, 1951), Triaenophorus nodulosus (Pallas, 1781), Azygia lucii (Miiller, 1776), Raphidascaris acus (Bloch, 1779). For the first time an intraerythrocyte parasite – H. esoci – was found in pike in the Lower Tobol, the extensiveness of invasion was 18.7% in December, and 6.2% in May. Epistylis sp. and Trichodinella epizzotica parasitized on the surface of the body of fish only in May, whereas members of the genus Trichodina were found in winter and spring. In all seasons, parasitization by M. anurum and H. psorospermica was established on the gills. The greatest occurrence of spores of M. lieberkuhni and C. esocinum was observed in the spring. Myxosporidia parasitized in the kidneys and T. monenteron parasitized on the gills during all periods of the study (the latter with an extensivity of invasion of 100.0%). All examined fish are infected with T. nodulosus 100.0% of cases. In May, other types of cestodes were found: P. esocis and Dibothriocephalus latus. Three pike were infected with proteocephalis. The larval stage of diphyllobothriid was found in one fish in the liver and gonads in an amount of 139 individuals. In the pikes’ stomach, during all periods of the study, A. lucii was found in all the fish examined. In the autumn period of the study immature R. campanula were found in in the intestine of 4 fish specimens. The nematode R. acus was found in pike only in spring. This nematode was found in fish aged 4+–8+. In May, glochidia with a high intensity of invasion were found on fins, gill covers and gills of fish. E. sieboldi copepods were found on the gills; in May, one specimen was found in one pike and in September in 6 with AI of 0.7. Tetraonchus monenteron was a dominant species, in May its degree of dominance decreased with the greatest uniformity of species in this study period. Having considered the age dynamics of pike infection by various types of parasites, it was found that in the age group 4+–5+ the number of species of parasites was greatest (20), while in groups 2+–3+ and 6+–8+ it was 14. In the pike, the core parasitic fauna were M. anurum, H. psorospermica, T. monenteron, T. nodulosus, A. lucii. Seasonality has virtually no effect on the degree of infection with specific parasites. The age of fish largely determines the qualitative and quantitative composition of the parasite fauna.

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"Myxosporidian parasites of the genus Thelohanellus from different freshwater fi shes of Washim, Maharashtra region." Bioscience Biotechnology Research Communications 9, no. 1 (March 31, 2016). http://dx.doi.org/10.21786/bbrc/9.1/22.

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