Episodic recruitment of the rock oyster Saccostrea cucullata (Born, 1778) on the Transkei coast

  • A.H. Dye


An exceptionally good recruitment of the rock oyster Saccostrea cucullata is reported from the Transkei coast. Prior to 1989 individuals smaller than 20 mm accounted for less than 3% of the population. New recruits now account for between 25% and 48% of standing stock. This single recruitment, which is 6 to 31 times the annual mean recorded over the last 6 to 7 years, represents 5 to 37 individuals m−2. The variable nature of recruitment in this species is discussed in relation to its resistance to exploitation.

Journal Identifiers

eISSN: 2224-073X
print ISSN: 1562-7020