Fish assemblages in habitats dominated by Caulerpa taxifolia and native seagrasses in south-eastern Australia

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Show simple item record York, PH Booth, DJ Glasby, TM Pease, BC 2009-12-21T02:29:50Z 2006-04-24
dc.identifier.citation Marine Ecology Progress Series, 2006, 312 pp. 223 - 234
dc.identifier.issn 0171-8630
dc.identifier.other C1 en_US
dc.description.abstract Seagrass beds in estuaries are important habitats and nursery grounds for a great variety of fishes, including many economically important species. The introduction of the invasive green alga Caulerpa taxifolia could potentially threaten the seagrasses of south-eastern Australia. This study examined the implications of the spread of C. taxifolia on ichthyofauna in 2 estuaries in central New South Wales. Fish assemblages were compared among adjacent habitats of C. taxifolia and 2 seagrass species (Posidonia australis and Zostera capricorni). Fish were sampled using a small beam trawl to test for differences among habitats in (1) the species composition of the fish assemblages, (2) total abundance and species richness of fishes, and (3) abundances of major fish families. Fish assemblages separated into 3 significantly distinct groupings based on habitat. Total abundances of fishes were similar among habitats; however, species richness was lower in C. taxifolia. The fish assemblages in C. taxifolia were largely characterised by high abundances of gobiid fishes, similar to those in Z. capricorni, and few or no syngnathid and monacanthid species when compared to seagrass fish assemblages. This suggests that if C. taxifolia competitively replaces native seagrass beds in the estuaries of New South Wales, the resulting change in habitat may also cause a change in fish assemblages. This could reduce the abundances of some protected and economically important fish species but may also increase abundances of other opportunistic fishes. © Inter-Research 2006.
dc.language eng
dc.relation.isbasedon 10.3354/meps312223
dc.title Fish assemblages in habitats dominated by Caulerpa taxifolia and native seagrasses in south-eastern Australia
dc.type Journal Article
dc.description.version Published
dc.parent Marine Ecology Progress Series
dc.journal.volume 312
dc.journal.number en_US
dc.publocation Oldendorf Luhe, Germany en_US
dc.identifier.startpage 223 en_US
dc.identifier.endpage 234 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0602 Ecology
dc.personcode 940138
dc.personcode 0000016519
dc.personcode 040732
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords Caulerpa taxifolia
dc.description.keywords Fish assemblages
dc.description.keywords Seagrass
dc.description.keywords South-eastern Australia
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/Strength - Environmental Science
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc true
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history General (ID: 2)

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