Observations on the reproductive cycles of Cellana capensis (Gmelin, 1791) and Patella concolor Krauss, 1848 (Gastropoda: Prosobranchia: Patellidae)

Abstract

The reproductive periodicities of the patellid limpets Cellana capensis and Patella concolor were determined from changes in macro- and microscopic appearance of the gonads over a 14-month period. Both species appear to have protracted breeding periods with several peaks in spawning activity. Problems encountered with the application of standard sampling and analytical methods to species with such cycles are discussed.

S. Afr. J. Zool.1987, 22(3)