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Spionid mudworm infestation of farmed abalone (Haliotis spp.)


Leonard, M and Handlinger, JH and Powell, MD, Spionid mudworm infestation of farmed abalone (Haliotis spp.), Aquaculture, 221, (1-4) pp. 85-96. ISSN 0044-8486 (2003) [Refereed Article]

DOI: doi:10.1016/S0044-8486(03)00116-9


Severe spionid infestations of farmed abalone (Haliotis spp.) were reported from several sea-based culture facilities during 1995-1997. Shell blister coverage was estimated at 30% and mortality rates of 50% or greater of total populations were recorded. Two spionid species: Boccardia knoxi Rainer and Polydora hoplura Claparede were present in blisters. Mean B. knoxi mudworm prevalence was 36.5 (S.D.=19, n=40) per abalone in stock surviving until late 1997. The percentage of total abalone weight comprising the soft tissues was significantly reduced (P<0.01, Mann-Whitney U-test) from 71.1% (S.D.=2.1%, n=24) to 64.5% (S.D.=6.0, n=11) and 49.6% (S.D.=10.4%, n=23) at two affected farms. Follow up trials from 1998 Showed a significant inverse relationship between percentage of shell affected by blisters and both length and whole weight of abalone (df=1,47, P<0.001 for both). © 2003 Elsevier Science B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fish pests and diseases
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Fisheries - aquaculture not elsewhere classified
UTAS Author:Leonard, M (Mr Mark Leonard)
UTAS Author:Handlinger, JH (Dr Judith Handlinger)
UTAS Author:Powell, MD (Dr Mark Powell)
ID Code:26199
Year Published:2003
Web of Science® Times Cited:48
Deposited By:TAFI - Aquaculture
Deposited On:2003-08-01
Last Modified:2011-09-20

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