An initial attempt at a spatially structured stock assessment for the South African hake resource including explicit movement [PDF]
, 2013 The distribution area for the South African hake population is separated into nine regions to accommodate an initial attempt at a model of the dynamics which reflects explicit movement of the two species of hake both longshore and offshore. Commercial selectivities-at-length are modelled by logistic curves to reflect a gear only and no availability ...
Rebecca A Rademeyer (10107625)
openaire +3 more sources
Population Genomics and the Environmental Drivers of Population Structure in a Cosmopolitan Marine Predator, Tursiops truncatus. [PDF]
Mol EcolABSTRACT The marine environment comprises vast regions without physical barriers to movement, making the understanding of population isolation and the evolution of diversity challenging. This is especially the case for highly mobile marine species.
Moore DM +11 more
europepmc +2 more sources
Management and conservation implications of cryptic population substructure for two commercially exploited fishes (Merluccius spp.) in southern Africa. [PDF]
Mol Ecol ResourAbstract Genomic information can aid in the establishment of sustainable management plans for commercially exploited marine fishes, aiding in the long‐term conservation of these resources. The southern African hakes (Merluccius capensis and M. paradoxus) are commercially valuable demersal fishes with similar distribution ranges but exhibiting ...
Forde S +10 more
europepmc +2 more sources
South African hake resource – collation of some biological information [PDF]
, 2023 A summary of some biological information on the South African hake resource is provided. This includes for both species M. paradoxus and M. capensis: length and age structure; growth curves; age-specific survival and fecundity; generation length; time ...
Deon Durholtz (11440692) +2 more
core +1 more source
An updated Reference Case for the South African hake resource [PDF]
, 2022 The development of and results for an updated Reference Case for the South African hake resource are presented here. This update takes account of the recommendations made by the December 2013 International Fisheries Stock Assessment Review Workshop ...
Rebecca A Rademeyer (10107625)
core +1 more source
Retrospective analysis for the South African hake resource Reference Case Assessment [PDF]
, 2021 Figures 1 and 2 plot spawning biomass and recruitment results respectively for a retrospective analysis of the South African hake resource for the 2017 Reference Case (Rademeyer and Butterworth, 2017).Over recent years the assessment has tended to ...
Doug Butterworth (10005953) +1 more
core +1 more source
Update of the proposed model framework to form the basis for immediate future assessments of the South African hake resource. BENEFIT/NRF/BCMLE December 2004 Stock Assessment Workshop document [PDF]
, 2004 Update of the proposed model framework to form the basis for immediate future assessments of the South African hake resource.
Rademeyer, R A, Butterworth, D S
openaire +2 more sources
A spatially structured stock assessment for the South African hake resource with movement based on a gravity model, and including fitting to outputs from the GeoPop Model [PDF]
, 2017 The gravity model of explicit spatial movement for the two South African hake species is extended to take account of advice from a mini-task group as on the plausibility of some earlier estimates of movement proportions and to incorporate information from the a GeoPop model to hake survey information over the 1998-2012 period.
Rademeyer, Rebecca A +1 more
openaire +3 more sources
Spatial description of hake-directed fishing activity off the west coast of South Africa [PDF]
, 2010 Historically, the two species of Cape hakes Merluccius capensis and M. paradoxus off South Africa were commercially exploited exclusively by demersal trawling.
Booth, Anthony J +3 more
core +2 more sources
2013 Update of the South African Hake Reference Case Assessment [PDF]
, 2023 The Reference Case assessment of the SA hake resource is updated using unchanged methodology from that used in developing the existing OMP, but with revised and updated data sets.
Doug Butterworth (10005953) +1 more
core +1 more source