Articles by Keyword: Substrate

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  1. The optimal rooting medium for minisetts of potato (<em>Solanum tuberosum</em> L.)

    The optimal rooting medium for minisetts of potato (<em>Solanum tuberosum</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Three different rooting media, namely, river sand, sawdust and wood shavings, were used for rooting various sizes of minisetts of potato (Solanum tuberosum L.), uniformly pre-treated with wood ash, indolebutyric acid (IBA), Captan and Lindane. The best substrate was found...
  2. A TAXONOMIC STUDY OF SESSILE PERITRICHIANS OF A SMALL IMPOUNDMENT WITH NOTES ON THEIR SUBSTRATE PREFERENCES

    A TAXONOMIC STUDY OF SESSILE PERITRICHIANS OF A SMALL IMPOUNDMENT WITH NOTES ON THEIR SUBSTRATE PREFERENCES

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    A taxonomic study of the sessile peritrichians (Ciliophora: Peritricha) was carried out on material collected from plants and animals, as well as inanimate substrates, experimentally placed into West-dene Dam, Johannesburg. A total of 15 species, representing the genera Carchesiwn, Voorticella,...
  3. Distribution, abundance and diversity of macrozoobenthos in Aiba Reservoir, Iwo, Nigeria

    Distribution, abundance and diversity of macrozoobenthos in Aiba Reservoir, Iwo, Nigeria

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Spatial and seasonal variation in macrozoobenthic composition, abundance and diversity in Aiba Reservoir were investigated bimonthy between June 2004 and April 2005 using a van Veen grab. A depauperate fauna of nine taxa was recorded. Generally, larger numbers of taxa...
  4. Can δ<sup>15</sup>N and δ<sup>13</sup>C stable isotopes and fatty acid signatures indicate changes in phytobenthos composition on an artificial substrate?

    Can δ<sup>15</sup>N and δ<sup>13</sup>C stable isotopes and fatty acid signatures indicate changes in phytobenthos composition on an artificial substrate?

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Temporal changes in fatty acid composition and δ15N, δ13C stable isotope values of the phytobenthos growing on artificial clay substrates under natural conditions over a 28-day period at an upstream and a downstream site in the Kowie River near Grahamstown...
  5. Habitat preferences of three sympatric lacertid lizards in the arid Tankwa Karoo Basin of South Africa

    Habitat preferences of three sympatric lacertid lizards in the arid Tankwa Karoo Basin of South Africa

    Item type: Journal Article • Journal: African Zoology
    Four lacertid lizards, Pedioplanis laticeps, P. lineo-ocellata, Meroles knoxii and Nucras tessellata, occur sympatrically on the arid plains of the Tankwa Karoo Basin in South Africa. The aim of this study was to determine whether the four species are spatially...
  6. Bathymetry, substrate and fishing areas of Southeast Atlantic high-seas seamounts

    Bathymetry, substrate and fishing areas of Southeast Atlantic high-seas seamounts

    Item type: Journal Article • Journal: African Journal of Marine Science
    Most of the Southeast Atlantic Ocean is abyssal, and global bathymetries suggest that only ∼3.2% of the areas beyond national jurisdiction (ABNJ; also known as the high seas, as defined in the United Nations Convention on the Law of the...