Variation in the sex ratio, size and age of longfinned eels within and among coastal catchments of southeastern Australia

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dc.contributor.author Walsh, Christopher en_US
dc.contributor.author Pease, Bruce en_US
dc.contributor.author Booth, David en_US
dc.date.accessioned 2009-12-21T02:30:54Z
dc.date.available 2009-12-21T02:30:54Z
dc.date.issued 2004 en_US
dc.identifier 2004000179 en_US
dc.identifier.citation Walsh Christopher, Pease Bruce, and Booth David 2004, 'Variation in the sex ratio, size and age of longfinned eels within and among coastal catchments of southeastern Australia', Blackwell Publishing Ltd, vol. 64, pp. 1297-1312. en_US
dc.identifier.issn 0022-1112 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/3952
dc.description.abstract Longfinned eels Anguilla reinhardtii were captured by both fishery-dependent and independent sampling methods from three rivers in New South Wales, south-eastern Australia. Sex ratios, catch per unit effort and population age and total length structure were examined in three zones (fresh water and upper and lower tidal) in the Hacking, Hawkesbury and Clarence Rivers. Females were found in relatively high proportions in all zones, ranging from 97% in a freshwater (non-tidal) site down to 59% in a tidal site. Males were found primarily in tidal zones (only two of the 677 longfinned eels caught in non-tidal fresh water were males), with the greatest proportions being found in the brackish upper tidal areas. The mean number of fish captured per trap was higher in the fresh water and upper tidal zones than in the lower tidal zones. The mean ? s.e. age, 17?9 ? 0?3 years, and age range, 5?52 years for females were significantly higher than those of males 12?2 ? 0?4 years; range 5?22 years, which is typical of other anguillid species. Longfinned eels captured in fresh water were found be significantly larger and older than those in tidal zones due to the almost exclusive predominance of females en_US
dc.publisher Blackwell Publishing Ltd en_US
dc.relation.isbasedon http://dx.doi.org/10.1111/j.0022-1112.2004.00392.x en_US
dc.subject Eels. en
dc.title Variation in the sex ratio, size and age of longfinned eels within and among coastal catchments of southeastern Australia en_US
dc.parent Journal Of Fish Biology en_US
dc.journal.volume 64 en_US
dc.journal.number en_US
dc.publocation Oxford, UK en_US
dc.identifier.startpage 1297 en_US
dc.identifier.endpage 1312 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 00096038 en_US
dc.personcode 0000016519 en_US
dc.personcode 940138 en_US
dc.percentage 100 en_US
dc.classification.name Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords NA en_US
dc.staffid 940138 en_US


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