Hyporheic macroinvertebrates in riffle and pool areas of temporary streams in south eastern Australia

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dc.contributor.author Hose, GC
dc.contributor.author Jones, P
dc.contributor.author Lim, RP
dc.date.accessioned 2009-06-26T04:11:09Z
dc.date.issued 2005-01
dc.identifier.citation Hydrobiologia, 2005, 532 (1), pp. 81 - 90
dc.identifier.issn 0018-8158
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/661
dc.description.abstract The hyporheic zone is an important refuge for invertebrates as surface water recedes in temporary streams. In this study, the structure and functional organisation of hyporheic macroinvertebrate assemblages in pool and dry riffle bed habitats of two episodic streams were compared over summer and winter. Multivariate analyses revealed macroinvertebrate assemblages differed significantly between streams, habitats and seasons. While some seasonal differences were expected, the differences between streams were not, given the similarity and proximity of the catchments, and were due to shifts in the abundance of common taxa. Distinct differences between riffle and pool habitats were evident in both the taxonomic and functional feeding group composition of the assemblages. In particular, riffle habitats contained greater numbers of taxa and individuals and a greater proportion of filter-feeding animals compared to pool habitats. Summer samples also had greater numbers of taxa and individuals and greater proportions of collector-scrapers than winter samples. The relative abundance of functional groups was similar between streams in summer but was more variable in winter. Patterns observed in the taxonomic and functional feeding group structure of the macroinvertebrate assemblages were more characteristic of perennial than episodic streams, despite the absence of regular surface flows. This could be attributed to the relatively constant hyporheic flow in these streams. We suggest that classifications of stream flow should consider hyporheic discharge (not just surface flow) as this clearly influences the stream biota. © Springer 2005.
dc.language eng
dc.relation.isbasedon 10.1007/s10750-004-9016-4
dc.title Hyporheic macroinvertebrates in riffle and pool areas of temporary streams in south eastern Australia
dc.type Journal Article
dc.description.version Published
dc.description.version Published
dc.parent Hydrobiologia
dc.journal.volume 1
dc.journal.volume 532
dc.journal.number 1-3 en_US
dc.publocation Dordrecht, Netherlands en_US
dc.publocation Coffs Harbour
dc.identifier.startpage 81 en_US
dc.identifier.endpage 90 en_US
dc.cauo.name DVCRch.Institute for Water & Environmental Resource Mgmnt en_US
dc.conference Verified OK en_US
dc.conference Australasian Conference on Information Systems
dc.for 0602 Ecology
dc.personcode 870336
dc.personcode 020174
dc.personcode 980002
dc.percentage 100 en_US
dc.classification.name Oceanography en_US
dc.classification.type FOR-08 en_US
dc.custom 0.653 en_US
dc.date.activity 2001-12-04
dc.location.activity Coffs Harbour, NSW
dc.description.keywords Episodic streams
dc.description.keywords Functional organisation
dc.description.keywords Hyporheos
dc.description.keywords Intermittent streams
dc.description.keywords Macroinvertebrates
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history General Collection (ID: 346) [2015-05-15T14:11:17+10:00]
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history Closed (ID: 3)
utslib.collection.history School of the Environment (ID: 344)

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