An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery

 

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dc.contributor.author Somhlaba, S
dc.contributor.author Brandão, Anabela
dc.contributor.author Plagányi, Éva E
dc.contributor.author Butterworth, Doug S
dc.date.accessioned 2016-03-16T09:30:01Z
dc.date.available 2016-03-16T09:30:01Z
dc.date.issued 2006
dc.identifier.citation Somhlaba, S., Brandão, A., Plagányi, É.E. & Butterworth, D.S. (2006). An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery. Marine and Coastal Management document: WG/MAY2006/PEL/04: 1-4. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/17843
dc.description.abstract Earlier 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. en_ZA
dc.language eng en_ZA
dc.publisher University of Cape Town en_ZA
dc.subject observer effect
dc.subject catch rates
dc.subject pelagic fishery
dc.title An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery en_ZA
dc.type Working Paper en_ZA
dc.date.updated 2016-03-16T08:05:24Z
uct.type.publication Research en_ZA
uct.type.resource Research paper en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Marine Resource Assessment and Management Group en_ZA


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