- Title
- Osmoregulation in freshwater invertebrates in response to exposure to salt pollution
- Creator
- Holland, Alexandra J, Gordon, Andrew K, Muller, Nikite W J
- Subject
- To be catalogued
- Date
- 2010
- Type
- text
- Type
- report
- Identifier
- http://hdl.handle.net/10962/437700
- Identifier
- vital:73403
- Identifier
- ISBN 978-1-4312-0075-7
- Identifier
- https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/1585.pdf
- Description
- The South African National Water Act (No. 36 of 1998) provides for an ecological Reserve which is intended to protect fresh water ecosystems and resources from degradation as a result of misuse, and to maintain vital ecological functions within these systems (Palmer et al., 2004). Water quality guidelines are an important tool in the management of these water resources, aiming to adequately balance protec-tion of aquatic ecological systems with sustainable human use needs. Jooste and Rossouw (2002) proposed guidelines or boundary values for inorganic salts to be included in the ecological Reserve. These boundary values for inorganic salts were derived as follows, acute lethality data (LC50s) from the ECOTOX database main-tained by the USEPA were projected to 336 h and the 5th percentile determined as a lethality benchmark, analogous to the Fair/Poor boundary. Similarly, the 5th percen-tile of available sublethal data was determined as the sublethality benchmark and analogous with the Natural/Good boundary value. The Good/Fair boundary was the mean value between Natural/Good and Fair/Poor values. It has been suggested however, that these guidelines might not be entirely appropriate as they were de-rived without including tolerances of South African biota. Furthermore, the accuracy for some salt boundary values have been questioned (Scherman, 2009; Scherman, 2010).
- Format
- 60 pages, pdf
- Publisher
- Water Research Commission
- Language
- English
- Relation
- Holland, A.J., Gordon, A.K. and Muller, W.J., 2010. Osmoregulation in freshwater invertebrates in response to exposure to salt pollution. Report to the Water Research Commission. Unilever Centre for Environmental Water Quality. Institute for Water Research, Rhodes University, Grahamstown, South Africa
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Water Research Commission Terms and Conditions of Use Statement (https://www.gov.za/terms-and-conditions-use-0)
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Muller, Nikite Wilhelmine Josephine (Dr)
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RU Institute for Water Research, including the Unilever Centre for Environmental Water Quality (IWR)
SDG 06. Clean Water and Sanitation
SDG 15. Life On Land
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | OSMOREGULATION.pdf | 619 KB | Adobe Acrobat PDF | View Details |