Results 11 to 20 of about 869 (153)
A new hypothesis for South African sardine stock structure [PDF]
A new hypothesis for South African sardine stock structure is conceptualised following newly available genomic and transcriptomic research, which adds to the body of evidence already available regarding spatial structure within the South African sardine population.
de Moor, Carryn +2 more
core +8 more sources
A revised hypothesis for South African sardine stock structure [PDF]
A new hypothesis for South African sardine stock structure has previously been conceptualised following newly available genomic and transcriptomic research, which added to the body of evidence already available regarding spatial structure within the South African sardine population (de Moor et al. 2022). This document further revises that hypothesis in
de Moor, Carryn +2 more
openaire +3 more sources
Alternative risk thresholds for South African sardine and anchovy resources [PDF]
This document considers alternative biomass-related risk thresholds for use in tuning Candidate Management Procedures for the South African sardine and anchovy resources. The document is written to provide background information to the key question to the panel “How do we best choose risk thresholds in terms of biomass levels for sardine and anchovy”?
Carryn de Moor (9998876)
openaire +2 more sources
An Initial Simple Model of the Revised Stock Structure Hypothesis for South African Sardine [PDF]
Presented to the International Stock Assessment Workshop, 28 November – 2 December 2022, University of Cape Town: 22pp, titled: 'An Initial Simple Model of the Revised Stock Structure Hypothesis for South African Sardine.'
Carryn de Moor (9998876)
core +5 more sources
Proposed equations for the revised South African sardine model population dynamics [PDF]
This document proposes equations to model the revised South African sardine population dynamics to assist discussions relating to model assumptions and the feasibility of reliably estimating a three‐area model.
Carryn de Moor (9998876)
openaire +3 more sources
Updated simple model of the revised stock structure hypothesis for South African sardine [PDF]
Nine alternative models to test the revised stock structure hypothesis for South African sardine are considered. These are an extension of work presented by de Moor (2022a,b) in December 2022 to test, in particular, key revisions to the hypothesis arising from the May 2023 Small Pelagic Scientific Working Group meeting.
Carryn de Moor (9998876)
openaire +2 more sources
This paper presents a new, updated, temporally dynamic Ecosim model for the Southern Benguela (1978–2015) by capturing recent advancements in our understanding of the dynamics and newly available data series from an additional decade of research in the ...
Lynne J. Shannon +10 more
doaj +1 more source
An alternative two mixing stock hypothesis for South African sardine [PDF]
The results of the two mixing stock hypothesis for South African sardine presented in de Moor and Butterworth (2016) assumed recruitment to each coastal management unit was dependent only on the spawner biomass (SSB) of that coastal management unit.
de Moor, Carryn L
openaire +3 more sources
A summary of the South African sardine (and anchovy) fishery
Sardine is an important target of the South African purse-seine fishery, the largest commercial fishery in South Africa (by landed mass). This fishery, initially established on the West Coast, but with some subsequent infrastructure development on the South Coast, is currently under pressure because of recent low biomass levels, reduced Total Allowable
Coetzee, Janet +3 more
openaire +2 more sources
The stock assessment model for South African sardine
The stock assessment model for South African sardine is detailed in this document.1. All infection occurs at 1 November; after all catch and before movement. Thus at the time of the recruit survey, all recruits are assumed to be uninfected.2. All movement occurs at 1 November; after all catch is removed from the population and after infection by the ...
de Moor, Carryn, Butterworth, Doug
openaire +2 more sources

