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Rockcods and seabass - South Africa Eastern
Marine Resource  Fact Sheet
Status of stocks and resources 2010
Rockcods and seabass - South Africa Eastern
Fact Sheet Citation  
Bocasses et Mérous
Owned byFood and Agriculture Organization (FAO) – More
Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - Groupers nei, fr - Mérous nca, es - Meros nep, ru - Групперы (=мероу)
Geographic extent of Rockcods and seabass - South Africa Eastern
Main Descriptors
Considered a single stock: No        Spatial Scale: Local
Management unit: Yes        Reference year: 2009
 
 
Biological State and Trend
State & Trend Descriptors
FIRMS
Exploitation rateNo or low fishing mortality
Moderate fishing mortality
High fishing mortality
Abundance levelDepleted
Aq Res State Trend
Exploitation stateDepleted
Habitat and Biology
Climatic zone: Tropical.   Depth zone: Coastal (0 m - 50 m).   Vertical distribution: Demersal/Benthic.  

Geographical Distribution
Jurisdictional distribution: Shared between nations

Water Area Overview
Spatial Scale: Local

Geo References
Resource Structure
Considered a single stock: No
Assessment
Level of uncertainty: Low

Assessment Model
Type:  Size-structured
Spawner biomass per recruit models, Yield -per -recruit models

Catches (2009): 35t, % change from preceding year: - 18 %. An operational management procedure has been established for the evaluation of all linefish stocks identifying biological reference points for classification of stock status, preferred stock assessment models given paucity of data (Spawner biomass per recruit models) and assessment review period based on half life span of the species (Griffiths, et al., 1999). Most species show substantial declines in CPUE, and stock assessments on selected species (Yield -per -recruit models – management reference points utilize SB/R) indicate below threshold of SB/R<25%, thus collapsed status. Measure of abundance: CPUE and SB/R.
Management
Management unit: Yes
Source of information
 
Report of the FOURTH SESSION OF THE SOUTH WEST INDIAN OCEAN FISHERIES COMMISSION. Mombasa, Kenya, 23–25 September 2009. Rapport de la QUATRIÈME SESSION DE LA COMMISSION DES PÊCHES POUR LE SUD-OUEST DE L’OCÉAN INDIEN. Mombasa, Kenya, 23-25 septembre 2009.  Click to openhttp://www.fao.org/docrep/014/i1396b/i1396b00.pdf
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