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Morphology, reprodu...
Morphology, reproductive biology and genetic structure of the whale-fall and hydrothermal vent specialist, Bathykurila guaymasensis Pettibone, 1989 (Annelida : Polynoidae)
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Glover, A. G. (author)
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Goetzel, E. (author)
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- Dahlgren, Thomas G., 1963 (author)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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Smith, C. R. (author)
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(creator_code:org_t)
- Wiley, 2005
- 2005
- English.
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In: Marine Ecology-an Evolutionary Perspective. - : Wiley. - 0173-9565. ; 26:3-4, s. 223-234
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https://doi.org/10.1...
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Abstract
Subject headings
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- We examined the reproductive biology and genetic structure of the polychaete Bathykurila guaymasensis (Annelida: Polynoidae), a species recorded from both whale-falls and hydrothermal vents. The habitat of B. guaymasensis is quite different from other vent polynoids, being apparently a specialist feeder oil Beggiatoa mat, rather than living commensally with mussels or on the sides of hot vent chimneys. Specimens were collected from whale-fall sites in the Santa Cruz and Santa Catalina Basins, Southern California at depths of 12001600 in, and investigated using a combined morphological and molecular approach. The species exhibits marked sexual dimorphism, asynchronous gametogenesis, evidence for internal fertilization and lecithotrophic larval development - all characters shared with other hydrothermal vent polynoids. Two distinct, sympatrically distributed haplotype groups of B. guaymasensis were identified using mitochondrial cytochrome oxidase I gene sequences, indicating that there may be two species within the nominal designation B. guaymasensis. Broad sharing of haplotypes between the two whale-fill sites suggests high dispersal rates among basins along the California margin.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- cytochrome oxidase 1
- deep-sea
- dispersal
- internal transcribed spacer 2
- polychaeta
- reproduction
- whale-fall
- oxidase subunit-i
- deep-sea-floor
- eastern pacific
- galapagos rift
- dwarf males
- polychaeta
- dispersal
- ecology
- DNA
- invertebrates
Publication and Content Type
- ref (subject category)
- art (subject category)
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