A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa
The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and...
Ausführliche Beschreibung
Autor*in: |
Martin K.S. Smith [verfasserIn] Demi Rodrigues [verfasserIn] Bianca Currie [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2018 |
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Übergeordnetes Werk: |
In: Koedoe: African Protected Area Conservation and Science - AOSIS, 2008, 60(2018), 1, Seite e1-e7 |
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Übergeordnetes Werk: |
volume:60 ; year:2018 ; number:1 ; pages:e1-e7 |
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Link aufrufen |
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DOI / URN: |
10.4102/koedoe.v60i1.1513 |
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Katalog-ID: |
DOAJ077276647 |
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10.4102/koedoe.v60i1.1513 doi (DE-627)DOAJ077276647 (DE-599)DOAJ309dcc83d71a4a2f9568a7a748aa3269 DE-627 ger DE-627 rakwb eng QH1-199.5 Martin K.S. Smith verfasserin aut A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. fish community temporarily open/closed estuary alien invasive fish General. Including nature conservation, geographical distribution Demi Rodrigues verfasserin aut Bianca Currie verfasserin aut In Koedoe: African Protected Area Conservation and Science AOSIS, 2008 60(2018), 1, Seite e1-e7 (DE-627)559431880 (DE-600)2413347-4 20710771 nnns volume:60 year:2018 number:1 pages:e1-e7 https://doi.org/10.4102/koedoe.v60i1.1513 kostenfrei https://doaj.org/article/309dcc83d71a4a2f9568a7a748aa3269 kostenfrei https://koedoe.co.za/index.php/koedoe/article/view/1513 kostenfrei https://doaj.org/toc/0075-6458 Journal toc kostenfrei https://doaj.org/toc/2071-0771 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 60 2018 1 e1-e7 |
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10.4102/koedoe.v60i1.1513 doi (DE-627)DOAJ077276647 (DE-599)DOAJ309dcc83d71a4a2f9568a7a748aa3269 DE-627 ger DE-627 rakwb eng QH1-199.5 Martin K.S. Smith verfasserin aut A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. fish community temporarily open/closed estuary alien invasive fish General. Including nature conservation, geographical distribution Demi Rodrigues verfasserin aut Bianca Currie verfasserin aut In Koedoe: African Protected Area Conservation and Science AOSIS, 2008 60(2018), 1, Seite e1-e7 (DE-627)559431880 (DE-600)2413347-4 20710771 nnns volume:60 year:2018 number:1 pages:e1-e7 https://doi.org/10.4102/koedoe.v60i1.1513 kostenfrei https://doaj.org/article/309dcc83d71a4a2f9568a7a748aa3269 kostenfrei https://koedoe.co.za/index.php/koedoe/article/view/1513 kostenfrei https://doaj.org/toc/0075-6458 Journal toc kostenfrei https://doaj.org/toc/2071-0771 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 60 2018 1 e1-e7 |
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10.4102/koedoe.v60i1.1513 doi (DE-627)DOAJ077276647 (DE-599)DOAJ309dcc83d71a4a2f9568a7a748aa3269 DE-627 ger DE-627 rakwb eng QH1-199.5 Martin K.S. Smith verfasserin aut A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. fish community temporarily open/closed estuary alien invasive fish General. Including nature conservation, geographical distribution Demi Rodrigues verfasserin aut Bianca Currie verfasserin aut In Koedoe: African Protected Area Conservation and Science AOSIS, 2008 60(2018), 1, Seite e1-e7 (DE-627)559431880 (DE-600)2413347-4 20710771 nnns volume:60 year:2018 number:1 pages:e1-e7 https://doi.org/10.4102/koedoe.v60i1.1513 kostenfrei https://doaj.org/article/309dcc83d71a4a2f9568a7a748aa3269 kostenfrei https://koedoe.co.za/index.php/koedoe/article/view/1513 kostenfrei https://doaj.org/toc/0075-6458 Journal toc kostenfrei https://doaj.org/toc/2071-0771 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 60 2018 1 e1-e7 |
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10.4102/koedoe.v60i1.1513 doi (DE-627)DOAJ077276647 (DE-599)DOAJ309dcc83d71a4a2f9568a7a748aa3269 DE-627 ger DE-627 rakwb eng QH1-199.5 Martin K.S. Smith verfasserin aut A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. fish community temporarily open/closed estuary alien invasive fish General. Including nature conservation, geographical distribution Demi Rodrigues verfasserin aut Bianca Currie verfasserin aut In Koedoe: African Protected Area Conservation and Science AOSIS, 2008 60(2018), 1, Seite e1-e7 (DE-627)559431880 (DE-600)2413347-4 20710771 nnns volume:60 year:2018 number:1 pages:e1-e7 https://doi.org/10.4102/koedoe.v60i1.1513 kostenfrei https://doaj.org/article/309dcc83d71a4a2f9568a7a748aa3269 kostenfrei https://koedoe.co.za/index.php/koedoe/article/view/1513 kostenfrei https://doaj.org/toc/0075-6458 Journal toc kostenfrei https://doaj.org/toc/2071-0771 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 60 2018 1 e1-e7 |
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A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa |
abstract |
The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. |
abstractGer |
The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. |
abstract_unstemmed |
The fish assemblage in the Noetsie Estuary, a temporarily open and closed estuary on the southern coast of South Africa, was sampled using multiple gears. A total of 12 species from 8 families were recorded. Collectively, estuarine-dependent marine species dominated seine net catches numerically and in terms of biomass for both sampling seasons. Estuarine round herring (Gilchristella aestuaria) was numerically the dominant species in late summer, while juvenile Mugilidae dominated catches in winter. Size class distributions of various fish species indicate that the estuary both serves a nursery function for important euryhaline marine species and supports estuarine resident taxa. Application of the Estuarine Fish Community Index indicates the ecological condition of the estuary to be ‘good’. This study contributes to the species list for the estuary while also reporting the presence of an alien invasive freshwater species, Gambusia affinis. Recommendations include the development of a management plan and the formalisation of an estuarine management committee. Conservation implications: The Noetsie Estuary serves a nursery function for important euryhaline marine species, while supporting healthy populations of estuarine resident taxa. The presence of one alien invasive fish species is documented with potential implications for the conservation of biodiversity in the estuary. |
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A survey of the ichthyofauna in the Noetsie Estuary, Western Cape Province, South Africa |
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