Original Research

Diets of Diplodus sargus capensis and D. cervinus hottentotus (Pisces: Sparidae) on the Tsitsikamma coast, South Africa

B.Q. Mann, C.D. Buxton
Koedoe | Vol 35, No 2 | a402 | DOI: https://doi.org/10.4102/koedoe.v35i2.402 | © 1992 B.Q. Mann, C.D. Buxton | This work is licensed under CC Attribution 4.0
Submitted: 22 September 1992 | Published: 22 September 1992

About the author(s)

B.Q. Mann, Rhodes University, South Africa
C.D. Buxton, Rhodes University, South Africa

Full Text:

PDF (4MB)

Abstract

Diets of Diplodus sargus capensis and D. cervinus hottentotus, sampled on the Tsitsikamma coast, are described. D. sargus was a generalist, feeding on a wide variety of reef associated invertebrates and algae. D. cervinus was more of a specialist feeding on comparatively few prey groups, the most important being polychaetes and amphipods. Juveniles of both species showed considerable spatial and dietary overlap, feeding predominantly on amphipods, polychaetes and harpacticoid copepods. Larger fish showed an increase in the range of prey species taken and dietary overlap was diminished. The dietary differences between these two species are thought to contribute to greater abundance and habitat range in D. sargus.

Keywords

Reef fish, diet, habitat preference, marine reserve.

Metrics

Total abstract views: 4476
Total article views: 3547

 

Crossref Citations

1. Effects of fishing on a temperate reef community in South Africa 1: ichthyofauna
A Götz, S E Kerwath, C G Attwood, W HH Sauer
African Journal of Marine Science  vol: 31  issue: 2  first page: 241  year: 2009  
doi: 10.2989/AJMS.2009.31.2.12.884