Articles by Author: Pw Froneman

Search results for Pw Froneman

We found 30 results for you
  1. A Review of “Beyond Memory: Recording the History, Moments and Memories of South African Music”

    A Review of “Beyond Memory: Recording the History, Moments and Memories of South African Music”

    Item type: Journal Article • Journal: Journal of the Musical Arts in Africa
    Somerset West: African Minds. (2008) ISBN 978-1-920299-28-6. 360 pp. ZAR 225
  2. Preliminary study on the food web structure of two contrasting estuaries along the Eastern Cape coast, South Africa

    Preliminary study on the food web structure of two contrasting estuaries along the Eastern Cape coast, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Water column profiles, surface macronutrient concentrations, size fractionated primary production and grazing by protozooplankton were investigated at 8 stations in the Kariega and Great Fish River estuaries in autumn (May) 1999. As a result of the low freshwater influx, the...
  3. Stable isotope (∂<sup>13</sup>C) composition of the food web of the temperate Kariega estuary (Eastern Cape)

    Stable isotope (∂<sup>13</sup>C) composition of the food web of the temperate Kariega estuary (Eastern Cape)

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Stable isotope (∂13C) composition of the food web in the temperate Kariega estuary in summer and winter was analysed to determine the trophic relationships between 19 taxa. There was no seasonality in the stable isotope ratios of the dominant producers...
  4. The primary carbon sources utilised by fishes in the Mngazi and Mngazana estuaries, South Africa: a preliminary assessment

    The primary carbon sources utilised by fishes in the Mngazi and Mngazana estuaries, South Africa: a preliminary assessment

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    A number of studies have used stable carbon isotopes to analyse aspects of the food web structure in South African estuaries but none has compared mangrove and non-mangrove estuarine food webs. This study compares the primary carbon sources utilised by...
  5. Population demographics of <em>Palaemon peringueyi</em> (Macpherson 1990) (Decapoda: Palaemonidae) in a small intermittently open Eastern Cape estuary

    Population demographics of <em>Palaemon peringueyi</em> (Macpherson 1990) (Decapoda: Palaemonidae) in a small intermittently open Eastern Cape estuary

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The population demographics of the caridean shrimp Palaemon peringueyi was investigated monthly at four sites over a period of one year in the small, intermittently-open Grants River Estuary situated on the south-east coastline of southern Africa. Mean total abundance and...
  6. Food web structure in three contrasting estuaries determined using stable isotope (∂<sup>13</sup>C) analysis

    Food web structure in three contrasting estuaries determined using stable isotope (∂<sup>13</sup>C) analysis

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Food web structure in three contrasting estuaries, the freshwater-deprived Kariega, the freshwater-dominated Great Fish River and the temporarily open/closed Kasouga estuary, along the south-east coast of southern Africa was investigated in summer (1–4 November) 2000 by employing stable carbon (∂13C)...
  7. Seasonal changes in selected physico-chemical and biological variables in the temporarily open/closed Kasouga estuary, Eastern Cape, South Africa

    Seasonal changes in selected physico-chemical and biological variables in the temporarily open/closed Kasouga estuary, Eastern Cape, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Seasonal changes in selected physico-chemical (temperature, salinity and turbidity) and biological (chlorophyll-a (chl-a), microphytobenthos and microheterotrophs) variables were measured at 7–9 day intervals for a period of 14 months in the temporarily open/closed Kasouga estuary. In addition, zooplankton biomass was...
  8. Predation impact of juvenile <em>Gilchristella aestuaria</em> (Clupeidae) and <em>Atherina breviceps</em> (Atherinidae) on the zooplankton in the temperate Kariega estuary, South Africa

    Predation impact of juvenile <em>Gilchristella aestuaria</em> (Clupeidae) and <em>Atherina breviceps</em> (Atherinidae) on the zooplankton in the temperate Kariega estuary, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Seasonal changes in the predation impact of juvenile (SL 18–25mm) Atherina breviceps and Gilchristella aestuaria on zooplankton was investigated at three stations in the middle reaches of the permanently open Kariega estuary during 1999 and 2000. Daily rations were estimated...
  9. Feeding dynamics of Palaemon peringueyi (Decapoda, Caridea) in the temporarily open/closed Kasouga Estuary, South Africa

    Feeding dynamics of Palaemon peringueyi (Decapoda, Caridea) in the temporarily open/closed Kasouga Estuary, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The feeding ecology of the caridean shrimp Palaemon peringueyi in the temporarily open/closed Kasouga Estuary, Eastern Cape, was examined during summer and winter employing stomach fullness index (SFI) analysis. Mean SFI values for male and female shrimp during summer ranged...