Gyrodactylus molweni sp. n. (Monogenea: Gyrodactylidae) from Chelon richardsonii (Smith, 1846) (Mugilidae) from Table Bay, South Africa.

Autor:	Christison KW; Department of Forestry, Fisheries and the Environment, Private Bag X2, Vlaeberg, 8012, South Africa.; Department of Biodiversity and Conservation Biology, University of the Western Cape, Private Bag X 17, Bellville, 7535, South Africa., Vaughan DB; School of Access Education, Central Queensland University, North Rockhampton, Queensland, 4701, Australia.; Coastal Marine Ecosystems Research Centre, Central Queensland University, Australia., Shinn AP; Benchmark R&D (Thailand) Ltd., No. 57/1 Moo 6, Samed Sub-District, Muang Chonburi District, Chonburi Province, 20000, Thailand., Hansen H; Norwegian Veterinary Institute, Fish Health Research Group, P.O. Box 750, Sentrum, NO-0106, Oslo, Norway.
Jazyk:	angličtina
Zdroj:	International journal for parasitology. Parasites and wildlife [Int J Parasitol Parasites Wildl] 2021 Apr 07; Vol. 15, pp. 87-94. Date of Electronic Publication: 2021 Apr 07 (Print Publication: 2021).
DOI:	10.1016/j.ijppaw.2021.02.011
Abstrakt:	Gyrodactylus molweni sp. n. is described from the body surface and fins of the South African mullet, Chelon richardsonii (Smith, 1846) collected from Table Bay Harbour, Cape Town and is compared to five other Gyrodactylus species described from grey mullets globally namely G. zhukovi Ling, 1963 and G. mugili Zhukov, 1970 from Planiliza haematocheila (Temminck and Schlegel, 1845); G. mugelus Rawson, 1973 from Mugil cephalus L. ; G. curemae Conroy and Conroy, 1985 from Mugil curema Valenciennes, 1836 and G. xiamenensis Zang,Yang and Liu, 2001 from Planiliza macrolepis (Smith, 1846). Morphologically, G. molweni sp. n. has prominent ventral bar processes that near cover the hamulus roots, marginal sickles with large rhomboid heels, slender shafts and fine points that extend beyond the sickle toes. Gyrodactylus molweni sp. n. can, however, be readily differentiated: G. mugili and G. xiamenensis have ventral bars with small ventral processes; G. zhukovi has marginal hooks sickles with slender shafts and proportionately short points and open-faced blades; G. mugelus possesses marginal hook sickles with deep, rounded heels, forward slanting shafts and an angular, square line to the inner face of the blades. Although the length of the marginal hooks of G. curemae are similar to G. molweni sp. n., their hamuli are double the size. A GenBank BlastN search with the 931 bp sequence covering ITS1, 5.8S and ITS2 gave no close hits; the nearest species for which sequences are available is G. nipponensis Ogawa and Egusa, 1978 (identity 96.56%, 899/931 bp). The proposal of G. molweni sp. n. as a new species, therefore, is well supported by both the molecular and morphological analyses presented herein. This Gyrodactylus species is the first to be described from C. richardsonii and only the second Gyrodactylus species to be described from the marine environment off the African continent. Competing Interests: I attest that the above mentioned manuscript has not been published elsewhere, accepted for publication elsewhere or under editorial review for publication elsewhere. This manuscript has been read and approved for submission by all authors. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. (© 2021 Published by Elsevier Ltd on behalf of Australian Society for Parasitology.)
Databáze:	MEDLINE
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