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Aspects of the reproductive biology of the concha wrasse, Nelabrichthyes ornatus, at Tristan da Cunha
journal contribution
posted on 2023-05-16, 20:20 authored by Andrew, TG, Colin BuxtonColin Buxton, Hecht, TThe reproductive biology of the concha wrasse, Nelabrichthys ornatus, at Tristan da Cunha in the South Atlantic Ocean is described. Histological evidence shows that the species is a monandric protogynous hermaphrodite. N. ornatus displays full permanent sexual dichromatism with all males occurring in the upper size classes of the population. Size specific habitat preference is described. Aspects of the mating system of the species resemble a lek although the possibility of mating site selection by females is not discounted. Spawning groups have a sex ratio of between 4 and 7 females per male.
History
Publication title
Environmental Biology of FishesVolume
46Pagination
139 - 149ISSN
0378-1909Department/School
Institute for Marine and Antarctic StudiesPublisher
Kluwer Academic PublishersPlace of publication
NetherlandsRights statement
The original publication is available at www.springerlink.comRepository Status
- Restricted