Infections of the Hemoflagellate, Cryptobia salmositica Katz, 1951, in Freshwater Teleosts of the Pacific Coast

Becker, C.D.; Katz, Max

doi:10.1577/1548-8659(1965)94[327:iothcs]2.0.co;2

Cited by 33 publications

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“…They are important components in food chains; as predators, vectors of parasites, preys of aquatic animals (Sawyer, 1986) and hosts or intermediate hosts in the life cycles of disease-causing blood protozoans, trematodes, and cestodes of Wshes (Becker, 1964(Becker, , 1970(Becker, , 1977(Becker, , 1980Becker and Katz, 1965;Khaibulaev, 1970;Poe, 1972;Putz, 1972;Corkum and Beckerdite, 1975;Klemm, 1975;Fish and Vande Vusse, 1976;HoVmann, 1979;Khan, 1980;Vande Vusse, 1980).…”

Section: Introductionmentioning

confidence: 99%

The effect of peritrich ciliates on some freshwater leeches from Assiut, Egypt

Gouda

2006

Journal of Invertebrate Pathology

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Section: Introductionmentioning

confidence: 99%

The effect of peritrich ciliates on some freshwater leeches from Assiut, Egypt

Gouda

2006

Journal of Invertebrate Pathology

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“…Leeches have been shown to be vectors of Cryptobia (Becker & Katz, 1965;Putz, 1972). Recently Cryptobia catostomi n sp.…”

Section: Introductionmentioning

confidence: 99%

Some observations of rainbow trout, Salmo gairdneri, Richardson, infected with Cryptobia salmositica

Lowe-Jinde

1979

Journal of Fish Biology

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Rainbow trout (Salmo gairdneri) were infected with an inoculum of infected blood containing lo6 Cryptobia sulmositicu. Parasitaemia was cyclical with a major peak at 14-21 days and a smaller peak at 42 days. The first peak of parasitaemia was correlated with low glucose, plasma proteins, and haematocrit levels. During this time clinical symptoms (exophthalmia, ascites, pale liver and gills) of the pathogenic condition were observed. The partial disappearance of the parasites from the blood was corrrelated with their appearance in the peritoneal cavity. As plasma glucose, proteins, and haematocrit levels returned towards control values, the oedema and gill paleness declined. Examination of the liver and spleen showed an exudate of fibrous matrix on their exterior surfaces. In addition, the presence of 2-4 x los mm-s Cryptobia in asymptomatic surviving fish suggests that a chronic parasitaemia can be tolerated.

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“…have been described from marine fish of which 2 had piscicolid leech vectors (Burreson 1979;Burreson and Zwerner 1982). Another Cryptobia spp., in Pacific salmon when in fresh water streams, also has a piscicolid leech vector [Becker and Katz 1965;Bower and Margolis 1984b).…”

Section: Discussionmentioning

confidence: 99%

Cocoon deposition on three crab species and fish parasitism by the leech Notostomum cyclostoma from deep fjords in northern British Columbia

Sloan¹,

Bower²,

Robinson³

1984

Mar. Ecol. Prog. Ser.

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Cocoons of the sanguivorous piscicolid leech Notostomum cyclostoma (Johansson) were found on 3 crab species, Lithodes aequispina, Paralithodes camtschatica and Chionoecetes bairdifrom deep fjords in the Portland Inlet system, northern British Columbia, Canada. This leech-crab association is convenient for cocoon deposition and dispersal. The leech does not appear to harm its crab hosts. Gut contents of N. cyclostoma collected off the crabs were fish-blood meals in various stages of digestion. The haemoflagellate Cryptobia sp. was observed in gut and proboscis area of 90 % of the leeches. One leech harbored another haemoflagellate, Trypanosoma sp., in its gut. Cryptobia sp. and Trypanosoma sp. were observed in the blood of 29 % of yellowfin soles Limanda aspera from one fjord. No haemoflagellates were observed in 7 other fish species caught coincidentally with the crabs. L. aequispina was the most cocoon -infested crab species. In Observatory Inlet, where L. aequispina was least common, more cocoons per crab were recorded than from the other fjords, Alice and Hastings Arms. Crabs which had not moulted for some time carried more cocoons than those with newer shells. This was less marked among C. bairdi subject to the exoskeleton disease of Black Mat Syndrome on older shells. The most used cocoon deposition site on crabs was the carapace, followed by the merus segments of the posterior limbs.

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Infections of the Hemoflagellate, Cryptobia salmositica Katz, 1951, in Freshwater Teleosts of the Pacific Coast

Cited by 33 publications

References 0 publications

The effect of peritrich ciliates on some freshwater leeches from Assiut, Egypt

The effect of peritrich ciliates on some freshwater leeches from Assiut, Egypt

Some observations of rainbow trout, Salmo gairdneri, Richardson, infected with Cryptobia salmositica

Cocoon deposition on three crab species and fish parasitism by the leech Notostomum cyclostoma from deep fjords in northern British Columbia

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