Preliminary results for a photo-identification-based assessment of southern right whales in South African waters

 

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dc.contributor.author Butterworth, Doug S
dc.contributor.author Brandão, Anabela
dc.contributor.author Müller, Andrea
dc.contributor.author Best, Peter B
dc.date.accessioned 2016-04-13T15:13:19Z
dc.date.available 2016-04-13T15:13:19Z
dc.date.issued 2011
dc.identifier.citation Butterworth, D. S., Brandão, A., Müller, A., & Best, P. B. (2011). Preliminary results for a photo-identification-based assessment of southern right whales in South African waters. MARAM: University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/18887
dc.description.abstract This working paper presents preliminary results of a photo-id based assessment of southern right whales in South African waters using the three-mature-stages (receptive, calving, resting) model of Cooke et al. (2003). The application of the approach is near-identical to that of Cooke et al. (2003), except that here the starting population is not assumed to reflect a steady age-structure corresponding to the Leslie matrix model describing the population dynamics. The photo-id data for grey-blazed female calves, which are identifiable when giving birth themselves, are used to link the dynamics of the mature females with the output of their reproduction by allowing for estimation of parameters for first-year mortality and the maturity ogive.
dc.language eng en_ZA
dc.title Preliminary results for a photo-identification-based assessment of southern right whales in South African waters en_ZA
dc.type Working Paper en_ZA
dc.date.updated 2016-04-13T15:11:11Z
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
uct.type.filetype Text
uct.type.filetype Image


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