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J Parasitol. 2018 Jun;104(3):262-274. doi: 10.1645/17-115. Epub 2018 Feb 22.

Hysterothylacium fabri (Nematoda: Raphidascarididae) in Mullus surmuletus (Perciformes: Mullidae) and Uranoscopus scaber (Perciformes: Uranoscopidae) from the Mediterranean.

Author information

1
1   Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy.
2
2   Fish Pathologist, Private Expert, SIAV B, ASL Lecce, Viale Don Minzoni, 73100 Lecce, Italy.
3
3   Department of Life Sciences, University of Trieste, Via Giorgieri 10, 34127 Trieste, Italy and Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.

Abstract

Raphidascarididae are among the most abundant and widespread parasitic nematodes in the marine environment. The life-cycle of most raphidascaridid species is poorly known and information about their distribution and host range is lacking in many geographical areas, as is the taxonomy of several species. A study of larval and adult stages of Hysterothylacium fabri (Rudolphi, 1819) Deardorff and Overstreet, 1980 (Nematoda: Raphidascarididae) infecting the striped goatfish Mullus surmuletus Linnaeus, 1758 (Mullidae) and the Mediterranean stargazer Uranoscopus scaber Linnaeus, 1759 (Uranoscopidae) from the Ionian Sea (central Mediterranean) has been carried out by combining light and scanning electron microscopy observations and molecular analyses through polymerase chain reaction-restriction fragment length polymorphism and sequencing of the ITS rDNA gene. Results indicate that U. scaber and M. surmuletus represent suitable definitive and intermediate/paratenic hosts of H. fabri, respectively, in the Mediterranean and highlight the importance of combining genetic and morphological data to study the taxonomy and epidemiology of parasites widely distributed in different fish species and aquatic ecosystems.

PMID:
29424637
DOI:
10.1645/17-115

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