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Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge)

Publication ,  Journal Article
Van Dover, CL; Trask, J; Gross, J; Knowlton, A
Published in: Marine Ecology Progress Series
May 18, 1999

We examined the reproductive biology of a polynoid polychaete commensal in mussel mantle cavities (Branchipolynoe cf. seepensis) and of a polynoid polychaete that is free-living among those same mussels (Opisthotrochopodus n. sp.). Specimens of each species were collected from 2 different sites (Eiffel Tower and Sintra; ~400 m apart) within the Lucky Strike hydrothermal field. Both species exhibit sexual dimorphism, with varying numbers of pairs of nephridial papillae. In B. cf. seepensis, sexual dimorphism also includes a difference in size, with females larger than males. Contrary to our expectations, the reproductive biology of both species is very similar. Sperm heads are elongate, suggesting some mode of sperm transfer or storage. Females of both species contain mature sperm and there is evidence of internal fertilization. Maximum oocyte diameters are large (> 390 μm), from which we infer non-planktotrophic development; oogenesis is intraovarian and suggests rapid oocyte development. Oocyte size-frequency distributions and population size structure suggest a pattern of asynchronous gametogenesis. We found no substantive evidence for site-specific variations in reproductive biology in either species.

Duke Scholars

Published In

Marine Ecology Progress Series

DOI

ISSN

0171-8630

Publication Date

May 18, 1999

Volume

181

Start / End Page

201 / 214

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 4102 Ecological applications
  • 3109 Zoology
  • 3103 Ecology
  • 0608 Zoology
  • 0602 Ecology
  • 0405 Oceanography
 

Citation

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ICMJE
MLA
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Van Dover, C. L., Trask, J., Gross, J., & Knowlton, A. (1999). Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge). Marine Ecology Progress Series, 181, 201–214. https://doi.org/10.3354/meps181201
Van Dover, C. L., J. Trask, J. Gross, and A. Knowlton. “Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge).” Marine Ecology Progress Series 181 (May 18, 1999): 201–14. https://doi.org/10.3354/meps181201.
Van Dover CL, Trask J, Gross J, Knowlton A. Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge). Marine Ecology Progress Series. 1999 May 18;181:201–14.
Van Dover, C. L., et al. “Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge).” Marine Ecology Progress Series, vol. 181, May 1999, pp. 201–14. Scopus, doi:10.3354/meps181201.
Van Dover CL, Trask J, Gross J, Knowlton A. Reproductive biology of free-living and commensal polynoid polychaetes at the lucky strike hydrothermal vent field (mid-atlantic ridge). Marine Ecology Progress Series. 1999 May 18;181:201–214.
Journal cover image

Published In

Marine Ecology Progress Series

DOI

ISSN

0171-8630

Publication Date

May 18, 1999

Volume

181

Start / End Page

201 / 214

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 4102 Ecological applications
  • 3109 Zoology
  • 3103 Ecology
  • 0608 Zoology
  • 0602 Ecology
  • 0405 Oceanography