The salinity tolerance of eggs and hatchlings of selected aquatic macroinvertebrates in south-east Australia and South Africa.

UTSePress Research/Manakin Repository

Search UTSePress Research


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Dalton, A en_US
dc.contributor.author Palmer, Carolyn en_US
dc.contributor.author Nugegoda, D en_US
dc.contributor.author Kefford, Ben en_US
dc.date.accessioned 2009-06-26T04:11:12Z
dc.date.available 2009-06-26T04:11:12Z
dc.date.issued 2004 en_US
dc.identifier 2006007723 en_US
dc.identifier.citation Kefford Benjamin et al. 2004, 'The salinity tolerance of eggs and hatchlings of selected aquatic macroinvertebrates in south-east Australia and South Africa.', Springer, vol. 517, no. 1-3, pp. 179-192. en_US
dc.identifier.issn 0018-8158 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/698
dc.description.abstract he effect of rising salinity levels on freshwater ecosystems is of concern in many parts of the world, including Australia and southern Africa. Most studies on the salinity tolerance of freshwater macroinvertebrates only consider older life-stages, which are suspected of being more tolerant than early life-stages, such as eggs and hatchlings. The salinity tolerances of ten taxa from south-east Australia and two taxa from South Africa, to the artificial seawater, Ocean Nature, were investigated. From the Barwon River in south-west Victoria, the following taxa were tested Amarinus lacustris (Hymenosomatidae), Paratya australiensis (Atyidae) Physa acuta (Physidae), Lymnaeidae, Plectrocnemia sp. (Polycentropodidae), Anisocentropus sp. (Calamoceratidae), Hydrobiosidae, unidentified Polycentropodidae and Dinotoperla thwaitesi (Gripopterygidae). Chironomus tepperi (Chironomidae) from a laboratory colony stocked from central New South Wales was also investigated. The South African limpets Burnupia stenochorias (Ancylidae) were collected in the Eastern Cape and shrimps Caridina nilotica (Atyidae) from a colony stocked from Kwazulu-Natal were studied. The salinity tolerances of the eggs and hatchlings ranged from 0.8 to >47 mS cm-1 with a mean of 17 mS cm-1. Where reliable estimates are available, the eggs or hatchlings had a salinity tolerance between 5% and 100% of the 72-hour LC50 of older stages, although for insects this was <50%. This study has thus confirmed that salinity tolerances of young stages can be less than the acute tolerances of older stages. en_US
dc.publisher Springer en_US
dc.relation.isbasedon http://dx.doi.org/10.1023/B:HYDR.0000027346.06304.bc en_US
dc.title The salinity tolerance of eggs and hatchlings of selected aquatic macroinvertebrates in south-east Australia and South Africa. en_US
dc.parent Hydrobiologia en_US
dc.journal.volume 517 en_US
dc.journal.number 1-3 en_US
dc.publocation Dordrecht, Netherlands en_US
dc.identifier.startpage 179 en_US
dc.identifier.endpage 192 en_US
dc.cauo.name DVCRch.Institute for Water & Environmental Resource Mgmnt en_US
dc.conference Verified OK en_US
dc.for 040500 en_US
dc.personcode 109859 en_US
dc.personcode 0000030982 en_US
dc.personcode 995263 en_US
dc.personcode 0000030983 en_US
dc.percentage 100 en_US
dc.classification.name Oceanography en_US
dc.classification.type FOR-08 en_US
dc.description.keywords critical life stages; stream invertebrates; life history; Decapoda; Gastropoda; Trichoptera en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record