Articles by Keyword: Temperate Sparid

Search results for Temperate Sparid

We found 16 results for you
  1. When plenty is not enough: an assessment of the white stumpnose (<em>Rhabdosargus globiceps</em>) fishery of Saldanha Bay, South Africa

    When plenty is not enough: an assessment of the white stumpnose (<em>Rhabdosargus globiceps</em>) fishery of Saldanha Bay, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    White stumpnose Rhabdosargus globiceps is the main target of the linefishery in Saldanha Bay. Increased fishing pressure over the last three decades, particularly by the recreational sector, has led to concerns regarding sustainability of the local white stumpnose stock. The...
  2. Production and quality norms of certain grass species for fodder flow planning: Pretoria area

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four subtropical (Cenchrus. Digitaria, Anthephora and Sorghum) and two temperate grass species (Festuca. Agrotricum) were grown in a replicated field experiment at three levels of N application, with adequate P and K. Species were mown at 4‐, 6‐ and 8‐weekly...
  3. Effect of cutting frequency on the yield and quality of legumes and grasses under irrigation

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four pasture legumes and seven grasses were subjected to a range of cutting frequencies during the 1980/81 season. A wide range of responses emerged, judged by both the dry matter and TDN yield responses of the different species. Whereas two...
  4. Production of pasture species in the winter rainfall region: Simulation of dry matter production

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Production data derived from cutting trials undertaken at a number of sites in the Winter Rainfall Region were used to derive equations for the prediction of the yield of a number of pasture species. Inputs into the models include climatic...
  5. Groei en produksie van ‘n aanal aangeplante weidings onder beweiding

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Die groei en produksie onder beweiding van ‘n aantal aangeplante weidings is met behulp van die verskilmetode bepaal. Uit die data verkry in die proef is dit duidelik dat indien daar besproeiingswater beskikbaar is, groen materiaal dwarsdeur die jaar voorsien...
  6. A comparison of grass and grass/legume pastures under irrigation in the Outeniqua area of the southern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Two grass and five grass/legume pastures were evaluated over a period of two seasons at two seasonally set grazing pressures and under two grazing management systems, involving five and seven paddocks per flock and a seven‐day period of stay. Grazing...
  7. 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...
  8. Zooplankton composition, abundance and distribution in selected south and west coast estuaries in South Africa

    Zooplankton composition, abundance and distribution in selected south and west coast estuaries in South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    In order to contribute to the understanding of estuarine zooplankton dynamics in cool-temperate systems, zooplankton samples were collected by plankton tows, using two modified WP2 nets, in nine estuaries on the south and west coasts of South Africa, seasonally between...
  9. Comparison of the effects of different linefishing methods on catch composition and capture mortality of South African temperate reef fish

    Comparison of the effects of different linefishing methods on catch composition and capture mortality of South African temperate reef fish

    Item type: Journal Article • Journal: African Journal of Marine Science
    The effects of hook size, bait type, water depth and fishing effort on the selectivity and capture mortality of reef fish were investigated in a standardised fishing experiment on the temperate south coast of South Africa. A total of 2...
  10. Effects of fishing on a temperate reef community in South Africa 1: ichthyofauna

    Effects of fishing on a temperate reef community in South Africa 1: ichthyofauna

    Item type: Journal Article • Journal: African Journal of Marine Science
    Exploitation of temperate reef fish not only affects the target species but potentially changes the composition of reef fish assemblages. This study investigated the effect of fishing on the ichthyofaunal community at protected and exploited sites around the Goukamma Marine...