Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/99842
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dc.titleA histological study of reproduction in the serpulids Pomatoceros triqueter and Pomatoceros lamarckii (Annelida: Polychaeta)
dc.contributor.authorCotter, E.
dc.contributor.authorO'Riordan, R.M.
dc.contributor.authorMyers, A.A.
dc.date.accessioned2014-10-27T08:19:12Z
dc.date.available2014-10-27T08:19:12Z
dc.date.issued2003-05-01
dc.identifier.citationCotter, E.,O'Riordan, R.M.,Myers, A.A. (2003-05-01). A histological study of reproduction in the serpulids Pomatoceros triqueter and Pomatoceros lamarckii (Annelida: Polychaeta). Marine Biology 142 (5) : 905-914. ScholarBank@NUS Repository.
dc.identifier.issn00253162
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/99842
dc.description.abstractThe reproductive cycles of the serpulid polychaetes Pomatoceros lamarckii (Quatrefages, 1865, as Vermilia) and P. triqueter (Linnaeus, 1767, as Serpula triquetra) were studied by histological examination during 1999 and 2000 at Bantry Bay, south-west Ireland. Gametogenesis, sex ratios and hermaphroditism were also investigated. The male/female ratio in P. lamarckii was approximately equal, but in P. triqueter it deviated significantly in favour of females. There was no significant variation in the sex ratios throughout the year in either species. Results confirm that the species are protandric hermaphrodites. In P. lamarckii, but not in P. triqueter, sexual dimorphism was exhibited in body size, the females being larger than the males of the same species. In both species, the proportion of females increased with increasing body size. Simultaneous hermaphroditism was recorded in P. lamarckii, but not in P. triqueter. There was no clearly defined annual gametogenic cycle in either species. Both species appear to have an extended reproductive season, with numerous small-scale peaks in reproductive maturity that can vary annually. Spawning was broadly synchronous between sexes. Visual observation alone (i.e. without histology) was insufficient to accurately assess reproductive condition in individuals not in, or close to, a ripe state.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.sourcetitleMarine Biology
dc.description.volume142
dc.description.issue5
dc.description.page905-914
dc.description.codenMBIOA
dc.identifier.isiutNOT_IN_WOS
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