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Assessment of the South African sardine resource using data from 1984-2011: further results for a two stock hypothesis

2013
As part of the process of updating the assessment of the South African sardine resource, a model of the sardine two mixing-stock hypothesis is being developed. This hypothesis postulates a “west” stock distributed west of Cape Agulhas and a “south” stock distributed south-east of Cape Agulhas with movement from the “west” to the “south” stock in ...
De Moor, Carryn L, Butterworth, Doug S
openaire   +1 more source

Assessment of the South African sardine resource using data from 1984-2011: initial results for a two stock hypothesis

2012
As part of the process of updating the assessment of the South African sardine resource, a sardine two mixing-stock hypothesis is to be tested. This hypothesis postulates a “west” stock distributed west of Cape Agulhas and a “south” stock distributed south-east of Cape Agulhas with movement from the “west” to the “south” stock in November as recruits ...
De Moor, Carryn L, Butterworth, Doug S
openaire   +1 more source

Assessment of the South African sardine resource using data from 1984-2010: initial results for a two stock hypothesis

2011
The sardine assessment is extended to consider three hypotheses for the presence of two (west and east) stocks separated at Cape Agulhas. The first hypothesis of two completely separated stocks is dismissed, as it implies that an unrealistically low proportion of the recruits for the eastern stock are detected in the recruitment survey.
De Moor, Carryn L, Butterworth, Doug S
openaire   +1 more source

Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode

2013
As part of the process of updating the assessment of the South African sardine resource, a model of a sardine two mixing-stock hypothesis has been developed. This hypothesis postulates a “west” stock distributed west of Cape Agulhas and a “south” stock distributed south-east of Cape Agulhas, with movement from the “west” to the “south” stock in ...
De Moor, Carryn L, Butterworth, Doug S
openaire   +1 more source

Assessment of the South African sardine resource using data from 1984-2010: further work towards a base case single stock hypothesis

2011
The sardine assessment is extended to consider three hypotheses for the presence of two (west and east) stocks separated at Cape Agulhas. The first hypothesis of two completely separated stocks is dismissed, as it implies that an unrealistically low proportion of the recruits for the eastern stock are detected in the recruitment survey.
De Moor, Carryn L, Butterworth, Doug S
openaire   +2 more sources

Indicators of sustainable fishing for South African sardineSardinops sagaxand anchovyEngraulis encrasicolus

African Journal of Marine Science, 2006
Carl D Van Der Lingen, Anthony J Booth
exaly  

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