- Title
- Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa
- Creator
- Ellender, Bruce R, Weyl, Olaf L F, Swartz, Ernst R
- Subject
- To be catalogued
- Date
- 2011
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/446866
- Identifier
- vital:74566
- Identifier
- https://doi.org/10.1080/15627020.2011.11407477
- Description
- In South Africa, fishes in headwater streams are increasingly being threatened by non-native fish invasions. These invasions originate primarily from source populations in mainstream rivers and impoundments. In the Blindekloof stream, a Swartkops River headwater tributary, the non-native Micropterus salmoides was eradicated from the stream by conservation authorities in 1989. As a result of this eradication subsequent occurrences of non-native fishes are most likely a result of upstream invasions from the mainstream Swartkops River. The Blindekloof stream therefore provided a unique opportunity to investigate whether M. salmoides would reinvade after its removal in 1989 and if the more recently introduced Clarias gariepinus and Tilapia sparrmanii would invade the Blindekloof stream. During snorkel and electrofishing surveys four non-native species were recorded (M. salmoides, M. dolomieu, T. sparrmanii, C. gariepinus ).
- Format
- 8 pages, pdf
- Language
- English
- Relation
- African Zoology, Ellender, B.R., Weyl, O.L. and Swartz, E.R., 2011. Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa. African Zoology, 46(1), pp.39-46, African Zoology volume 46 number 1 39 46 2011 2224-073X
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
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Collections
Weyl, Olaf L F (Prof)
RU Department of Ichthyology and Fisheries Science
RU South African Institute for Aquatic Biodiversity (SAIAB)
SDG 14. Life Below Water
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