Morphology and aspects of growth of a trypanosome transmitted by the marine leech Johanssonia arctica (Piscicolidae) from Northern Norway

Title:

Morphology and aspects of growth of a trypanosome transmitted by the marine leech Johanssonia arctica (Piscicolidae) from Northern Norway

Creator:

Karlsbakk, Egil, Haugen, Eli, and Nylund, Are

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:abb90ee4-e759-448d-aef7-84282715ce30
uuid:abb90ee4-e759-448d-aef7-84282715ce30
doi:10.14411/fp.2005.028

Subject:

Hippoglossus, Johanssonia arctica, Trypanosoma murmanensis, Norway, and marine

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The fish leech Johanssonia arctica (Johansson, 1898) was collected from king crabs Paralithodes camtschaticus (Tilesius, 1815) in Finnmark, N Norway, and allowed to feed on experimental fish hosts in the laboratory. This leech ingested blood from laboratory-reared cod (Gadus morhua) and halibut (Hippoglossus hippoglossus). Some experimental halibut acquired trypanosome infection, with parasitaemia between ca. 500 and 60,000 trypanosomes ml-1. The trypanosomes were of variable size and measured 39-90 µm (mean 57 µm) ca. 81 days post-infection. Characteristic features are cell striation, refractile cytoplasmic granules, anterior nucleus and a relatively long (ca. 6 µm, max 9 µm) distance from the posterior end to the kinetoplast. Following growth, the trypanosomes became increasingly slender, with fewer striae and a nucleus position less pronounced anterior. The trypanosome is considered distinct from a type transmitted by the leech Calliobdella nodulifera (Malm, 1863) in the NE Atlantic, but is regarded conspecific with a trypanosome transmitted by J. arctica in the NW Atlantic. This trypanosome has in the past been identified as Trypanosoma murmanensis Nikitin, 1927, a poorly described species. T. murmanensis cannot be recognized with certainty among the trypanosomes transmitted by C. nodulifera and J. arctica respectively. We propose that the J. arctica-transmitted species is considered T. murmanensis Nikitin, 1927 sensu stricto.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

209-215

Source:

Folia parasitologica | 2005 Volume:52 | Number:3

Harvested from:

CDK

Metadata only:

false