oa African Zoology - Daily feeding periodicity of the intertidal goby Caffrogobius caffer

Volume 17, Issue 4
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



The daily feeding periodicity of Caffrogobius caffer was investigated at three sites in the eastern Cape. Two 24h collections were taken at each collection site. Three methods were used to examine stomach contents. Relative stomach fullness was assessed for all six collections, while back-calculated time of ingestion and dry mass of the stomach contents as a percentage of dry somatic mass were applied to two collections each. The results from the three methods were similar. Feeding activity of C. caffer was not influenced by tide phase; peaks of feeding occurred during both high and low tide. Feeding occurred throughout the day with a tendency for slight crepuscular peaks of feeding activity.

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