File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.2989/1814232X.2017.1303398
- Scopus: eid_2-s2.0-85022204494
- WOS: WOS:000405415900003
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Genetic stock structure of white steenbras Lithognathus lithognathus (Cuvier, 1829), an overexploited fishery species in South African waters
Title | Genetic stock structure of white steenbras Lithognathus lithognathus (Cuvier, 1829), an overexploited fishery species in South African waters |
---|---|
Authors | |
Keywords | fisheries management microsatellites minimum spanning network mitochondrial control region population genetics Sparidae |
Issue Date | 2017 |
Citation | African Journal of Marine Science, 2017, v. 39, n. 1, p. 27-41 How to Cite? |
Abstract | White steenbras Lithognathus lithognathus (Teleostei: Sparidae) is an overexploited marine fish species endemic to South Africa. Overexploitation in recreational, subsistence and commercial fisheries has resulted in stock collapse and the need for improved management of the species. Adults are thought to undertake large-scale annual spawning migrations, yet studies of their movement indicate low levels of connectivity among coastal regions. To address this, mitochondrial DNA sequencing and genotyping of microsatellite loci in the nuclear genome were conducted to determine the genetic stock structure and level of gene flow in this species. Genetic diversity was high throughout the species’ core distribution, with no evidence of isolation by way of distance or localised spawning. Low, non-significant pairwise fixation indices (FST, RST and Jost’s Dest) indicated low genetic differentiation and high levels of gene flow. The observed results, and agreement between mitochondrial and microsatellite DNA, confirm that white steenbras exists as a single genetic stock with high levels of gene flow throughout its distribution. |
Persistent Identifier | http://hdl.handle.net/10722/308722 |
ISSN | 2023 Impact Factor: 1.4 2023 SCImago Journal Rankings: 0.444 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bennett, R. H. | - |
dc.contributor.author | Reid, K. | - |
dc.contributor.author | Gouws, G. | - |
dc.contributor.author | Bloomer, P. | - |
dc.contributor.author | Cowley, P. D. | - |
dc.date.accessioned | 2021-12-08T07:49:59Z | - |
dc.date.available | 2021-12-08T07:49:59Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | African Journal of Marine Science, 2017, v. 39, n. 1, p. 27-41 | - |
dc.identifier.issn | 1814-232X | - |
dc.identifier.uri | http://hdl.handle.net/10722/308722 | - |
dc.description.abstract | White steenbras Lithognathus lithognathus (Teleostei: Sparidae) is an overexploited marine fish species endemic to South Africa. Overexploitation in recreational, subsistence and commercial fisheries has resulted in stock collapse and the need for improved management of the species. Adults are thought to undertake large-scale annual spawning migrations, yet studies of their movement indicate low levels of connectivity among coastal regions. To address this, mitochondrial DNA sequencing and genotyping of microsatellite loci in the nuclear genome were conducted to determine the genetic stock structure and level of gene flow in this species. Genetic diversity was high throughout the species’ core distribution, with no evidence of isolation by way of distance or localised spawning. Low, non-significant pairwise fixation indices (FST, RST and Jost’s Dest) indicated low genetic differentiation and high levels of gene flow. The observed results, and agreement between mitochondrial and microsatellite DNA, confirm that white steenbras exists as a single genetic stock with high levels of gene flow throughout its distribution. | - |
dc.language | eng | - |
dc.relation.ispartof | African Journal of Marine Science | - |
dc.subject | fisheries management | - |
dc.subject | microsatellites | - |
dc.subject | minimum spanning network | - |
dc.subject | mitochondrial control region | - |
dc.subject | population genetics | - |
dc.subject | Sparidae | - |
dc.title | Genetic stock structure of white steenbras Lithognathus lithognathus (Cuvier, 1829), an overexploited fishery species in South African waters | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.2989/1814232X.2017.1303398 | - |
dc.identifier.scopus | eid_2-s2.0-85022204494 | - |
dc.identifier.volume | 39 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 27 | - |
dc.identifier.epage | 41 | - |
dc.identifier.eissn | 1814-2338 | - |
dc.identifier.isi | WOS:000405415900003 | - |