Articles by Keyword: Meromictic Coastal Lake

Search results for Meromictic Coastal Lake

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  1. ZOOPLANKTON DISTRIBUTION IN RELATION TO ENVIRONMENTAL CONDITIONS IN THE SWARTVLEI SYSTEM, SOUTHERN CAPE

    ZOOPLANKTON DISTRIBUTION IN RELATION TO ENVIRONMENTAL CONDITIONS IN THE SWARTVLEI SYSTEM, SOUTHERN CAPE

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Swartvlei is an ectogenic meromictic coastal lake connected to the sea via an estuary which closes periodically due to the formation of a sand bar across its mouth. The inflow of high-salinity water water from the sea into the lake...
  2. THE LAKE ST. LUCIA SYSTEM—A RESEARCH ASSESSMENT

    THE LAKE ST. LUCIA SYSTEM—A RESEARCH ASSESSMENT

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    This paper assesses the research undertaken at Lake St. Lucia over the past 25 years based on over 300 documents from that period. Trends related to both time and subject matter are evident, and these are considered in relation to...
  3. THE HABITATS AND HABITAT PREFERENCES OF <underline>CLARIAS GARIEPINUS</underline> (PISCES: CLARIIDAE) IN A CLEAR COASTAL LAKE (LAKE SIBAYA, SOUTH AFRICA)

    THE HABITATS AND HABITAT PREFERENCES OF <underline>CLARIAS GARIEPINUS</underline> (PISCES: CLARIIDAE) IN A CLEAR COASTAL LAKE (LAKE SIBAYA, SOUTH AFRICA)

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The habitat preferences of the sharptooth catfish, Clarias gariepinus, in a clear coastal lake, Lake Sibaya, are described. Larval and small juvenile catfish inhabit flotsam and the rootstocks of plants in very shallow marginal areas. Larger juveniles inhabit densely-vegetated marginal...
  4. ZOOPLANKTON AND ENVIRONMENTAL CONDITIONS IN GROENVLEI, SOUTHERN CAPE, DURING 1976

    ZOOPLANKTON AND ENVIRONMENTAL CONDITIONS IN GROENVLEI, SOUTHERN CAPE, DURING 1976

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The zooplankton and environmental conditions in Groenvlei were studied during 1976 as part of an overall ecological study of the zooplankton of the Wilderness Lakes system. The Groenvlei water was found to be well mixed and low in dissolved PO4−P,...
  5. A NOTE ON SALINITY AND OXYGEN STRATIFICATION IN THE MARINA DA GAMA, ZANDVLEI

    A NOTE ON SALINITY AND OXYGEN STRATIFICATION IN THE MARINA DA GAMA, ZANDVLEI

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Ten months data (March to December, 1983), on temperature, salinity and dissolved oxygen are reported for two canals within the Marina Da Gama, Zandvlei, a coastal lake periodically open to the sea. They show that although there was minimal temperature...
  6. ZOOPLANKTON AND ESTUARINE RELICT (BENTHIC) FAUNA IN LAKE MZINGAZI, A FRESHWATER COASTAL LAKE OF NATAL

    ZOOPLANKTON AND ESTUARINE RELICT (BENTHIC) FAUNA IN LAKE MZINGAZI, A FRESHWATER COASTAL LAKE OF NATAL

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Lake Mzingazi, a natural, undisturbed freshwater coastal lake in the heart of the Richards Bay municipal area, is threatened by rapid urban and industrial growth. The previously unrecorded composition and distribution of zooplankton in the lake was studied during 1979...
  7. A RULE-BASED ECOSYSTEM MODEL FOR THE MANAGEMENT OF LAKE ST LUCIA

    A RULE-BASED ECOSYSTEM MODEL FOR THE MANAGEMENT OF LAKE ST LUCIA

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Land transformations in the catchments of Lake St Lucia have altered the hydrology of the system and increased management is now needed to counteract these changes. There are several management options available, but prior to implementing them we must be...
  8. DIET AND REPRODUCTIVE ACTIVITY OF THE ESTUARINE ROUNDHERRING <em>GILCHRISTELLA AESTUARIA</em> IN CUBHU, A FRESHWATER COASTAL LAKE IN NORTHERN NATAL, SOUTH AFRICA

    DIET AND REPRODUCTIVE ACTIVITY OF THE ESTUARINE ROUNDHERRING <em>GILCHRISTELLA AESTUARIA</em> IN CUBHU, A FRESHWATER COASTAL LAKE IN NORTHERN NATAL, SOUTH AFRICA

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    A study of the diet and reproductive activity of Gilchristella aestuaria revealed that active gonads were present throughout the year. The main breeding season appeared to be from spring through to autumn with two distinct peaks occurring from August to...
  9. Available information on macroinvertebrates of the Mhlathuze coastal lakes: setting the ecological reserve (lake water requirements)

    Available information on macroinvertebrates of the Mhlathuze coastal lakes: setting the ecological reserve (lake water requirements)

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    This paper reviews current information on the macroinvertebrates of four coastal lakes in the Mhlathuze catchment of Zululand. The fauna are described in terms of the potential influence of lake level changes in response to increasing anthropogenic pressures for available...
  10. The icthyofauna of the Mhlathuze coastal lakes: some preliminary results

    The icthyofauna of the Mhlathuze coastal lakes: some preliminary results

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The fish faunas of the four Mhlathuze coastal lakes and the lower river comprise a diverse assortment of over fifty marine, estuarine and freshwater species. Three freshwater species are endemic to KwaZulu-Natal and nine estuarine species are endemic to southern...