+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The use of host specificity, pathogenicity, and molecular markers to differentiate between Gyrodactylus salaris Malmberg, 1957 and G. thymalli Zitnan, 1960 (Monogenea: Gyrodactylidae)



The use of host specificity, pathogenicity, and molecular markers to differentiate between Gyrodactylus salaris Malmberg, 1957 and G. thymalli Zitnan, 1960 (Monogenea: Gyrodactylidae)



Parasitology 124(Pt 2): 203-213



The validity of Gyrodactylus thymalli has been questioned, based on its morphological and genetic resemblance to G. salaris. This taxonomic problem has practical implications regarding correct diagnosis of G. salaris, which has proved to be highly pathogenic to stocks of wild Norwegian Atlantic salmon. The host specificity and pathogenicity of G. salaris and G. thymalli were experimentally tested on salmon and grayling. Both parasite species were able to infect, live and reproduce on both fish species. G. salaris was highly pathogenic for the experimental stock of salmon, while grayling mounted an effective response against this parasite. Both fish species responded to an infection with G. thymalli. The results did not support the hypothesis of conspecificity between G. thymalli and G. salaris. The ribosomal RNA gene intergenic spacer of both species was sequenced. Variation in sequence was lower than expected for different species. Variation in the sequences of tandemly repeated elements was found and may prove useful in distinguishing G. salaris and G. thymalli.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 003985758

Download citation: RISBibTeXText

PMID: 11860035

DOI: 10.1017/s0031182001001044


Related references

The application of chaetotaxy in the discrimination of Gyrodactylus salaris Malmberg, 1957 (Gyrodactylidae: Monogenea) from species of the genus parasitising British salmonids. International Journal for Parasitology 28(5): 805-814, 1998

Variations of opisthaptoral hard parts of Gyrodactylus salaris Malmberg, 1957 (Monogenea: Gyrodactylidae) on parr of Atlantic salmon Salmo salar L. in laboratory experiments. Systematic Parasitology 201: 11-19, 1991

Seasonal variations of opisthaptoral hard parts of gyrodactylus salaris malmberg 1957 monogenea gyrodactylidae on parr of atlantic salmon salmo salar l. in the river batnfjordselva norway. Systematic Parasitology 19(3): 231-240, 1991

Variations of opisthaptoral hard parts of Gyrodactylus salaris Malmberg, 1957 (Monogenea: Gyrodactylidae) on rainbow trout Oncorhynchus mykiss (Walbaum, 1792) in a fish farm, with comments on the spreading of the parasite in south-eastern Norway. Systematic Parasitology 201: 1-9, 1991

Site specificity of gyrodactylus salaris malmberg 1957 monogenea on atlantic salmon salmo salar l. in the river lakselva northern norway. Canadian Journal of Zoology 70(2): 264-267, 1992

Infections with Gyrodactylus spp. (Monogenea) in Romanian fish farms: Gyrodactylus salaris Malmberg, 1957 extends its range. Parasites and Vectors 9(1): 444, 2016

Gyrodactylus salaris Malmberg, 1957 (Platyhelminthes: Monogenea). Molecular diagnosis of salmonid diseases: 235-265, 2002

The host specificity of Gyrodactylus salaris Malmberg (Platyhelminthes, Monogenea): susceptibility of Oncorhynchus mykiss (Walbaum) under experimental conditions. Journal of Fish Biology 391: 45-57, 1991

Remarks on the occurrence of Gyrodactylus salaris Malmberg, 1957 sensu Ergens, 1961 (Monogenoidea: Gyrodactylidae). Vestnik Ceskoslovenske Spolecnosti Zoologicke 37(4): 293-295, 1973

Molecular and morphological comparisons between Gyrodactylus ostendicus n. sp. (Monogenea: Gyrodactylidae) on Pomatoschistus microps (Kroyer) and G. harengi Malmberg, 1957 on Clupea harengus membras L. Systematic Parasitology 58(2): 105-113, 2004

Remarks on the nomenclatoric problem of Gyrodactylus wageneri Malmberg, 1957 (Monogenea: Gyrodactylidae). Folia Parasitologica 26(4): 381-383, 1979

Characterization of the Gyrodactylus salaris Malmberg, 1957 (Platyhelminthes: Monogenea) ribosomal intergenic spacer (IGS) DNA. Parasitology 121 Pt 5: 555-563, 2000

Chaetotaxy applied to Norwegian Gyrodactylus salaris Malmberg, 1957 (Monogenea) clades and related species from salmonids. Folia Parasitologica 51(2-3): 253-261, 2004

Host-based identification is not supported by morphometrics in natural populations of Gyrodactylus salaris and G. thymalli (Platyhelminthes, Monogenea). Parasitology 134(Pt.14): 2041-2052, 2007

Temperature-dependent reproduction and survival of Gyrodactylus salaris Malmberg, 1957 (Platyhelminthes: Monogenea) on Atlantic salmon (Salmo salar L.). Parasitology 102 Pt 1: 105-112, 1991