Articles by Author: P Kainge

Search results for P Kainge

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  1. Temporal and spatial patterns in the abundance of jellyfish in the northern Benguela upwelling ecosystem and their link to thwarted pelagic fishery recovery

    Temporal and spatial patterns in the abundance of jellyfish in the northern Benguela upwelling ecosystem and their link to thwarted pelagic fishery recovery

    Item type: Journal Article • Journal: African Journal of Marine Science
    There has been debate in the literature about whether jellyfish abundance has increased in the northern Benguela upwelling system, or not, over the past five decades and what impact they are having on pelagic fish. Here we review old expedition...
  2. Stock-environment recruitment analysis for Namibian Cape hake <em>Merluccius capensis</em>

    Stock-environment recruitment analysis for Namibian Cape hake <em>Merluccius capensis</em>

    Item type: Journal Article • Journal: African Journal of Marine Science
    The factors modulating recruitment success of Cape hake Merluccius capensis in Namibian waters are still unresolved. In this study, we used generalised additive models, regression tree analysis and the conventional Ricker model to examine the effect of environmental indices and...
  3. Escapement of Cape hakes under the fishing line of the Namibian demersal sampling trawl

    Escapement of Cape hakes under the fishing line of the Namibian demersal sampling trawl

    Item type: Journal Article • Journal: African Journal of Marine Science
    Swept area surveys in Namibian waters provide input data to the stock assessment model. To evaluate the model's predictions, it is important to understand the catch efficiency of sampling trawls. The objective of this study was to establish whether Cape...
  4. <em>Merluccius capensis</em> spawn in Namibian waters, but do <em>M. paradoxus</em>?

    <em>Merluccius capensis</em> spawn in Namibian waters, but do <em>M. paradoxus</em>?

    Item type: Journal Article • Journal: African Journal of Marine Science
    Spawning time and areas, and the length of the spawning season of shallow-water (Merluccius capensis) and deep-water (M. paradoxus) hake, were investigated from bottom trawl collections taken in Namibian waters between September 1998 and October 2000 and from August to...
  5. Diel effects on bottom-trawl survey catch rates of shallow- and deep-water Cape hakes <em>Merluccius capensis</em> and <em>M. paradoxus</em> off Namibia, using solar zenith angle

    Diel effects on bottom-trawl survey catch rates of shallow- and deep-water Cape hakes <em>Merluccius capensis</em> and <em>M. paradoxus</em> off Namibia, using solar zenith angle

    Item type: Journal Article • Journal: African Journal of Marine Science
    Diel patterns in survey trawl catches for the Cape hakes Merluccius capensis and M. paradoxus off Namibia were studied in order to examine the effect of diel bias on catchability, and its implication for survey abundance estimation and the consistency...
  6. Geostatistical modelling of the spatial life history of post-larval deepwater hake <em>Merluccius paradoxus</em> in the Benguela Current Large Marine Ecosystem

    Geostatistical modelling of the spatial life history of post-larval deepwater hake <em>Merluccius paradoxus</em> in the Benguela Current Large Marine Ecosystem

    Item type: Journal Article • Journal: African Journal of Marine Science
    Optimal and sustainable management of fish resources cannot be ensured without a thorough understanding of the migration patterns and population (demographic stock) structure. Recent studies suggest that these aspects of the economically and ecologically important deepwater hake Merluccius paradoxus are...