1887

n African Zoology - The recreational fishery in the Kosi estuarine lake system, South Africa

Volume 36, Issue 2
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X
This article is unavailable for purchase outside of Africa

 

Abstract

The Kosi estuarine system, located in northern KwaZulu-Natal, is becoming an increasingly popular angling venue. Recreational catch card data from the National Marine Linefish System for the years 1986 to 1999 were analysed to determine total catch, catch composition, catch per unit effort (CPUE), seasonality of catches and annual trends in catch composition. A total of 17 families, comprising 34 species, was reported in catches of recreational anglers. Pomadasys spp., predominantly Pomadasys commersonnii, was the most prominent taxon caught in terms of both numbers and mass. Seasonal trends in catch rates were observed, with more fish caught in the summer and autumn months. The catch rate fluctuated annually. Fluctuations in CPUE were closely correlated to the number of cards collected, which reflects bias in the data. Despite annual fluctuations in CPUE, regression analysis revealed a slight increase in overall CPUE with time. However, CPUE for Acanthopagrus berda and Lutjanus argentimaculatus decreased steadily since 1986. The decline of these two estuarine-dependent species may indicate that the total fishing levels are not sustainable.

Loading full text...

Full text loading...

Loading

Article metrics loading...

/content/afzoo/36/2/EJC17790
2001-10-01
2020-09-20

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error