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Cool Temperate Estuaries

ORANGE (GARIEP) RIVER ESTUARY 

LOCALITY: 28o38'S;16o27'E REGION: Cool temperate

CLASSIFICATION: River mouth INFORMATION: Good

CONDITION: Fair (Remarks: Reduced riverine input will lead to increased mouth closure in the future) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL: Morant & O'Callaghan (1990), Swart et al. (1988), Swart et al. (1990), van Heerden (1986)
  2. BIOLOGICAL/ECOLOGICAL: Brown (1958), Grindley (1959), Harrison (1997a), Seaman & van As (1998), Williams (1986)
  3. SYNTHESES/REVIEWS: Day (1981h)
  4. REPORTS/DOCUMENTS: Council for Scientific and Industrial Research (1985a), Cowan (1995), Harrison et al. (1994a), Harrison et al. (1994b), Prins (1990), van der Merwe (1988a), van der Merwe (1988b)

OLIFANTS ESTUARY 

LOCALITY: 31o42'S;18o11'E REGION: Cool temperate

CLASSIFICATION: Permanently open estuary INFORMATION: Moderate

CONDITION: Good (Remarks: One of the most important estuaries on the west coast) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL:
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1998a)
  3. SYNTHESES/REVIEWS: Coetzee et al. (1997), Day (1981h), Morant (1984)
  4. REPORTS/DOCUMENTS: Council for Scientific and Industrial Research (1990), Harrison et al. (1994a), Harrison et al. (1994b), Slinger (1990), van der Merwe (1988b)

GROOT BERG ESTUARY 

LOCALITY: 32o46'S;18o09'E REGION: Cool temperate

CLASSIFICATION: Permanently open estuary INFORMATION: Good

CONDITION: Fair (Remarks: Human impacts on freshwater supply likely to increase dramatically) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL: Slinger & Taljaard (1994)
  2. BIOLOGICAL/ECOLOGICAL: Bennett (1994), Harrison (1997a), Kalejta (1991), Kalejta (1992a), Kalejta (1992b), Kaletja (1993a), Kaletja (1993b), Kalejta & Hockey (1991), Kalejta & Hockey (1994), Velásquez & Hockey (1992), Velásquez et al. (1990), Velásquez et al. (1991)
  3. SYNTHESES/REVIEWS: Day (1981h)
  4. REPORTS/DOCUMENTS: Davies & Day (1995), Harrison et al. (1994a), Harrison et al. (1994b), Slinger et al. (1998), van der Merwe (1988b), van Wyk (1983)

RIETVLEI/DIEP ESTUARY 

LOCALITY: 33o53'S;18o28'E REGION: Cool temperate

CLASSIFICATION: Temporarily open/closed estuary INFORMATION: Good

CONDITION: Poor (Remarks: Encroaching urbanization and canalization has altered this system) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL: Hughes et al. (1993)
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1997b), Scott (1954)
  3. SYNTHESES/REVIEWS: Day (1981h), Millard & Scott (1954)
  4. REPORTS/DOCUMENTS: Barwell (1989), Beaumont & Heydenrych (1980), Harrison et al. (1994a), Harrison et al. (1994b), van der Merwe (1988b), Yeld (1994)

SOUT (WES) ESTUARY 

LOCALITY: 33o55'S;18o28'E REGION: Cool temperate

CLASSIFICATION: Canalized estuary INFORMATION: Poor

CONDITION: Poor (Remarks: Urbanization and canalization of the estuary has largely destroyed this system) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL: Orren et al. (1981)
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1997b)
  3. SYNTHESES/REVIEWS: Day (1981h)
  4. REPORTS/DOCUMENTS: Harrison et al. (1994a), Harrison et al. (1994b)

HOUTBAAI ESTUARY 

LOCALITY: 34o03'S;18o21'E REGION: Cool temperate

CLASSIFICATION: River mouth INFORMATION: Moderate

CONDITION: Poor (Remarks: Has potential for rehabilitation) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL:
  2. BIOLOGICAL/ECOLOGICAL:
  3. SYNTHESES/REVIEWS: Coetzee et al. (1996), Grindley (1988)
  4. REPORTS/DOCUMENTS: Fromme (1985b), Harrison et al. (1994a), Harrison et al. (1994b)

WILDEVOËLVLEI ESTUARY 

LOCALITY: 34o08'S;18o20'E REGION: Cool temperate

CLASSIFICATION: Temporarily open/closed estuary INFORMATION: Poor

CONDITION: Fair (Remarks: Discharge of treated effluent into the upper vlei has modified the system) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL:
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1997b)
  3. SYNTHESES/REVIEWS: Coetzee et al. (1996)
  4. REPORTS/DOCUMENTS: Harrison et al. (1994a), Harrison et al. (1994b)

BOKRAMSPRUIT ESTUARY 

LOCALITY: 34o08'S;18o21'E REGION: Cool temperate

CLASSIFICATION: Temporarily open/closed estuary INFORMATION: Poor

CONDITION: Poor (Remarks: Stormwater input from township development) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL:
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1997b)
  3. SYNTHESES/REVIEWS:
  4. REPORTS/DOCUMENTS: Harrison et al. (1994a), Harrison et al. (1994b)


 

SCHUSTER ESTUARY 

LOCALITY: 34o12'S;18o22'E REGION: Cool temperate

CLASSIFICATION: Temporarily open/closed estuary INFORMATION: Poor

CONDITION: Poor (Remarks: Stormwater input from township development) 

AVAILABLE LITERATURE 

  1. PHYSICAL/CHEMICAL:
  2. BIOLOGICAL/ECOLOGICAL: Harrison (1997b)
  3. SYNTHESES/REVIEWS:
  4. REPORTS/DOCUMENTS: Harrison et al. (1994a), Harrison et al. (1994b)

KROM ESTUARY

LOCALITY: 34o15'S;18o23'E REGION: Cool temperate

CLASSIFICATION: Temporarily open/closed estuary INFORMATION: Poor

CONDITION: Excellent (Remarks: Part of the Cape of Good Hope Nature Reserve) 

AVAILABLE LITERATURE 

  1. (a) PHYSICAL/CHEMICAL:
  2. (b) BIOLOGICAL/ECOLOGICAL: Harrison (1997b)
  3. (c) SYNTHESES/REVIEWS:
  4. (d) REPORTS/DOCUMENTS: Harrison et al. (1994a), Harrison et al. (1994b)