Reproduction of gastropods from vents on the East Pacific Rise and the Mid-Atlantic Ridge
Tyler, Paul A.
Mills, Susan W.
Mullineaux, Lauren S.
Eckelbarger, Kevin J.
Baker, Maria C.
Young, Craig M.
MetadataShow full item record
KeywordEast Pacific Rise; Gastropod; Reproduction; Gametogenesis; Hydrothermal vent; Mid-Atlantic Ridge
The gametogenic biology is described for seven species of gastropod from hydrothermal vents in the East Pacific and from the Mid-Atlantic Ridge. Species of the limpet genus Lepetodrilus (Family Lepetodrilidae) had a maximum unfertilized oocyte size of <90 μm and there was no evidence of reproductive periodicity or spatial variation in reproductive pattern. Individuals showed early maturity with females undergoing gametogenesis at less than one third maximum body size. There was a power relationship between shell length and fecundity, with a maximum of 1,800 oocytes being found in one individual, although individual fecundity was usually <1,000. Such an egg size might be indicative of planktotrophic larval development, but there was never any indication of shell growth in larvae from species in this genus. Cyathermia naticoides (Family Neomphalidea) had a maximum oocyte size of 120 μm and a fecundity of <400 oocytes per individual. Rhynchopelta concentrica (Family Peltospiridae) had a maximum oocyte size of 184 μm and a fecundity <600, whereas in Eulepetopsis vitrea (Family Neolepetopsidae) maximum oocyte size was 232 μm with a fecundity of <200 oocytes per individual. In none of these three species was there any indication of episodicity in oocyte production. From our observations we support the paradigm that there is no reproductive pattern typical of vent systems but is more related to species' phylogeny.
Author Posting. © National Shellfisheries Association, 2008. This article is posted here by permission of National Shellfisheries Association for personal use, not for redistribution. The definitive version was published in Journal of Shellfish Research 27 (2008): 107-118, doi:10.2983/0730-8000(2008)27[107:ROGFVO]2.0.CO;2.
Showing items related by title, author, creator and subject.
A new Late Pliocene large provannid gastropod associated with hydrothermal venting at Kane Megamullion, Mid-Atlantic Ridge Kaim, Andrzej; Tucholke, Brian E.; Waren, Anders (2011-03)A new gastropod, Kaneconcha knorri gen et sp. nov., was found in marlstone dredged from the surface of Adam Dome at Kane Megamullion on the flank of the Mid-Atlantic Ridge in an area of former hydrothermal activity. The ...
Mills, Susan W.; Mullineaux, Lauren S.; Tyler, Paul A. (Marine Biological Laboratory, 2007-06)At deep-sea hydrothermal vents on the East Pacific Rise (9°50'N), distinct megafaunal assemblages are positioned along strong thermal and chemical gradients. We investigated the distribution of gastropod species to determine ...
Colonisation of newly-opened habitat by a pioneer species, Alvinella pompejana (Polychaeta: Alvinellidae), at East Pacific Rise vent sites Pradillon, Florence; Zbinden, Magali; Mullineaux, Lauren S.; Gaill, Francoise (Inter-Research, 2005-11-04)Animal communities on the walls of deep-sea hydrothermal chimneys are distributed in mosaics of patches that may evolve as local environmental conditions change and biological interactions develop. Alvinella pompejana ...