Browsing by Subject "pelagic fishery"
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- ItemOpen AccessAn indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery(University of Cape Town, 2006) Somhlaba, S; Brandão, Anabela; Plagányi, Éva E; Butterworth, Doug SEarlier GLM analyses of catch per hour data for sardine and anchovy to determine observer effects have suggested statistically significant increases in this catch rate with observers on the vessels over January-to June for the sardine fishery, and over May to October for the anchovy fishery (Somhlaba et al. 2006). This in turn has raised the possibility that this may reflect (and provide quantification of the extent of) slippage in the catching operations conducted without observers present.
- ItemRestrictedModelling the impact of the South African small pelagic fishery on African penguin dynamics(2012) Robinson, WilliamThis paper incorporates a complete description of the penguin–fish interaction model for Robben Island. All data included are described in full in Section 2. The model equations are described in detail in Section 3. Base case results are presented in Section 4.