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First report of the invasive eel pest Pseudodactylogyrus bini in North America and in wild American eels

Citation

Hayward, CJ and Iwashita, M and Crane, JS and Ogawa, K, First report of the invasive eel pest Pseudodactylogyrus bini in North America and in wild American eels, Diseases of Aquatic Organisms, 44, (1) pp. 53-60. ISSN 0177-5103 (2001) [Refereed Article]

DOI: doi:10.3354/dao044053

Abstract

We detected 2 species of monogenean gill worms, Pseudodactylogyrus bini (Kikuchi, 1929) Gusev, 1965 and P. anguillae (Yin & Sproston, 1948) Gusev, 1965 (Monopisthocotylea: Pseudodactylogyridae), on American eel Anguilla rostrata in 2 rivers in South Carolina, USA. One of these, P. anguillae, was reported 5 yr ago from Nova Scotia; as well as in South Carolina, we also discovered it in 2 localities in Chesapeake Bay. Differences in the morphologies of specimens of either species of worm from North America and northeastern Asia were negligible. Similarly, the level of variation in sequences in the ITS2 (internal transcribed spacers) region of ribosomal RNA was minor, and not consistent with geographical origin. These data indicate that these monogeneans invaded North America only recently, possibly in parallel with the nematode Anguillicola crassus (which is known to have been introduced with commercial imports of foreign eels). We map the current global occurrence of these monogeneans, and conclude that their dispersal from northeastern Asia was largely as a result of the eel trade, and has probably been secondarily augmented by longshore migration of infected eels, and possibly also by transport in ballast waters. With present technology, all eel stocks must still be collected from the wild; unless shipments are disinfected at quarantine, these and other eel pathogens (such as A. crassus) are likely to continue to colonise other regions of the world.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Fisheries - Aquaculture not elsewhere classified
Author:Hayward, CJ (Dr Craig Hayward)
ID Code:34566
Year Published:2001
Web of Science® Times Cited:21
Deposited By:TAFI - Aquaculture
Deposited On:2005-07-28
Last Modified:2011-10-03
Downloads:0

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