Articles by Author: Jn Kathena

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  1. A robust method for generating separate catch time-series for each of the hake species caught in the Namibian trawl fishery

    A robust method for generating separate catch time-series for each of the hake species caught in the Namibian trawl fishery

    Item type: Journal Article • Journal: African Journal of Marine Science
    Merluccius capensis and M. paradoxus are morphologically very similar and cannot be registered separately by species in the Namibian commercial hake catches. This prevents a biologically plausible single-species stock assessment from being carried out. Here, species-separated data from an observer...
  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. 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...