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, CT
dc.contributor.author Pease, BC
dc.contributor.author Booth, DJ
dc.date.accessioned 2009-12-21T02:30:54Z
dc.date.issued 2004-01
dc.identifier.citation Journal Of Fish Biology, 2004, 64 pp. 1297 - 1312
dc.identifier.issn 0022-1112
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, 552 years for females were significantly higher than those of males 12·2 ± 0·4 years; range 522 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
dc.publisher Blackwell Publishing Ltd
dc.relation.isbasedon 10.1111/j.0022-1112.2004.00392.x
dc.subject NA, Fisheries
dc.subject NA; Fisheries
dc.title Variation in the sex ratio, size and age of longfinned eels within and among coastal catchments of southeastern Australia
dc.type Journal Article
dc.parent Journal Of Fish Biology
dc.journal.volume 64
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 0602 Ecology
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.description.keywords NA
dc.staffid 940138 en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Faculty of Science/School of the Environment
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science


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