Articles by Keyword: Eurytolerant Invertebrate

Search results for Eurytolerant Invertebrate

We found 16 results for you
  1. Population fluctuations of <em>Cerithidea decollata</em> (Gastropoda: Potamididae) in mangrove habitats of the St Lucia Estuary, South Africa

    Population fluctuations of <em>Cerithidea decollata</em> (Gastropoda: Potamididae) in mangrove habitats of the St Lucia Estuary, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Mangrove macrobenthos species are used as ecological indicators as they are sensitive to changes in sediment properties. In this study, the population density of the common mangrove whelk Cerithidea decollata was assessed during different environmental conditions in the St Lucia...
  2. THE INVERTEBRATE FAUNA AND BIOTIC INDEX VALUE OF WATER QUALITY OF THE GREAT BERG RIVER, WESTERN CAPE

    THE INVERTEBRATE FAUNA AND BIOTIC INDEX VALUE OF WATER QUALITY OF THE GREAT BERG RIVER, WESTERN CAPE

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The invertebrate fauna was sampled at seven localities in the main stream of the Berg River in 1974. These results are discussed and compared with those of Harrison and Elsworth (1958). The results obtained were also used in applying the...
  3. THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA

    THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    The south-western Cape is currently responsible for 45% of the total annual trout production in South Africa and further expansion of this industry in the region is likely. A preliminary survey of seven trout farms situated on the upper reaches...
  4. INVERTEBRATES IN THE ORANGE RIVER, WITH EMPHASIS ON CONSERVATION AND MANAGEMENT

    INVERTEBRATES IN THE ORANGE RIVER, WITH EMPHASIS ON CONSERVATION AND MANAGEMENT

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    Distribution and abundance of aquatic invertebrates in the lower 1800 kilometres of the Orange River is examined in relation to the conservation and management of the Orange River. Data are based on published information and surveys conducted during research into...
  5. Preliminary testing of the Integrated Habitat Assessment System (IHAS) for aquatic macroinvertebrates

    Preliminary testing of the Integrated Habitat Assessment System (IHAS) for aquatic macroinvertebrates

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Preliminary testing of the Integrated Habitat Assessment System (IHAS), a widely-used aquatic macroinvertebrate habitat assessment method in South Africa, was undertaken. Based on the sensitivity of the South African Scoring System (SASS) to biotope availability and assuming that SASS Scores...
  6. The effect of fish predation on benthic macroinvertebrates in a seasonal stream in north-western Zimbabwe

    The effect of fish predation on benthic macroinvertebrates in a seasonal stream in north-western Zimbabwe

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The cumulative impact of the entire fish assemblage on benthic macroinvertebrate assemblages was investigated over four months in a removal experiment in isolated pools that persist through the dry season, in an intermittent stream in north-western Zimbabwe. Macroinvertebrate taxonomic richness...
  7. The impact of feedlot effluent on water quality and aquatic macroinvertebrate community structure in streams of the upper Vaal River catchment, South Africa

    The impact of feedlot effluent on water quality and aquatic macroinvertebrate community structure in streams of the upper Vaal River catchment, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The impact of three intensive feedlots on aquatic macroinvertebrate community structure under high and low flows in the upper Vaal catchment was investigated. Water quality variables recorded upstream and downstream of feedlot activity include pH, dissolved oxygen, conductivity, temperature, turbidity,...
  8. Effects of plantation residue management on the community structure of wattle regeneration invertebrate pests in South Africa

    Effects of plantation residue management on the community structure of wattle regeneration invertebrate pests in South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    There is a limited availability of land for the expansion of South African black wattle plantations. One way to increase productivity is to ensure the survival of seedlings during regeneration, thereby increasing the stocking of compartments. Soil invertebrate pests constitute...
  9. Patterns of millipede (Diplopoda), centipede (Chilopoda) and scorpion (Scorpionida) diversity in savanna habitats within the Greater Makalali Conservancy, South Africa

    Patterns of millipede (Diplopoda), centipede (Chilopoda) and scorpion (Scorpionida) diversity in savanna habitats within the Greater Makalali Conservancy, South Africa

    Item type: Journal Article • Journal: African Zoology
    Although savanna is one of the most important biomes in southern Africa, it is, apart from the botanical component, one of the least studied. This study aimed to document the distribution patterns, richness and diversity of selected ground-dwelling, flightless arthropods...
  10. Trophic structure and biomass distribution of macrobenthos on sheltered and semi-exposed rocky shores of Tsitsikamma Marine Protected Area

    Trophic structure and biomass distribution of macrobenthos on sheltered and semi-exposed rocky shores of Tsitsikamma Marine Protected Area

    Item type: Journal Article • Journal: African Zoology
    The trophic structure and biomass of macrobenthos on both wave-sheltered, rocky intertidal shores and semi-exposed ones at seven localities in the Tsitsikamma Marine Protected Area were compared. In the Cochlear zone and entire intertidal (Cochlear- and Balanoid zones combined) biomass...