Stock discrimination and movement of narrow barred Spanish mackerel across northern Australia as indicated by parasites

Moore, B. J., Buckworth, R. C., Moss, H. and Lester, R. J. G. (2003). Stock discrimination and movement of narrow barred Spanish mackerel across northern Australia as indicated by parasites. In: 2003 ASFB Annual Conference New Zealand - Abstracts. 2003 Australian Society for Fish Biology Annual Conference, Auckland, N.Z., (). July 2003.


Author Moore, B. J.
Buckworth, R. C.
Moss, H.
Lester, R. J. G.
Title of paper Stock discrimination and movement of narrow barred Spanish mackerel across northern Australia as indicated by parasites
Conference name 2003 Australian Society for Fish Biology Annual Conference
Conference location Auckland, N.Z.
Conference dates July 2003
Proceedings title 2003 ASFB Annual Conference New Zealand - Abstracts
Place of Publication Australia
Publisher ASFB
Publication Year 2003
Language eng
Abstract/Summary The parasite fauna of Spanish mackerel, Scomberomorus commerson, from ten sites across northern Australia and one site in Indonesia, was examined to evaluate the degree of movement and subsequent stock structure of the fish. Data from temporary (gill copepods and monogeneans) and permanent (juvenile helminths) parasites indicated that S. commerson in the waters of north Australia are relatively sedentary and are structured into distinct stocks. Kupang fish had very few Terranova spp., Grillotia branchi, Otobothrium cysticum, and Pterobothrium sp. compared to Australian fish, indicating that no Australian fish enter the Kupang fishery. Univariate and discriminant function analysis of four temporary parasite species (Pseudocycnoides armatus, Gotocotyla bivaginalis, Pricea multae, and Pseudothoracocotyla ovalis) demonstrated little similarity between areas of northern Australia, thus indicating minimal short-term exchange between neighbouring groups of S. commerson. Analyses of five permanent parasite species (Grillotia branchi, O. cysticum, Pterobothrium sp., Callitetrarhynchus gracilis and Paranybelinia balli) indicated at least six parasitological stocks across northern Australia (Fog Bay and Bathurst Island; Cape Wessel; Groote Eylandt and the Sir Edward Pellew Group; Mornington Island; Weipa; and the Torres Strait), though the occurrence of a few irregular fish suggested that up to 5% of fish had moved during their lifetime. Within-school variability was similar to that between schools, showing that the fish do not form long-term school associations.
Subjects 0605 Microbiology
0608 Zoology
0704 Fisheries Sciences
Keyword Narrow-barred Spanish mackerel (Scomberomorus commerson)
Parasites
Schools
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Unknown

 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Tue, 02 Mar 2010, 14:04:28 EST by Michael Affleck on behalf of Faculty of Science