Large-scale genetic patchiness among NE Atlantic populations of the brittle star Ophiothrix fragilis
نویسندگان
چکیده
منابع مشابه
Genetic diversity of the NE Atlantic sea urchin Strongylocentrotus droebachiensis unveils chaotic genetic patchiness possibly linked to local selective pressure
We compared the genetic differentiation in the green sea urchin Strongylocentrotus droebachiensis from discrete populations on the NE Atlantic coast. By using eight recently developed microsatellite markers, genetic structure was compared between populations from the Danish Strait in the south to the Barents Sea in the north (56-79°N). Urchins are spread by pelagic larvae and may be transported...
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Dense beds of the suspension-feeding brittlestar Ophiothrix fragilis are common in European waters. Their potential importance in benthic±pelagic coupling has been highlighted, but little is known about the feeding dynamics of this species. Encounter-rate models provide a potential mechanism for the estimation of feeding rates on suspended material of varying sizes. This work investigates facto...
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Previous studies on Ophiothrix in European waters demonstrated the existence of two distinct species, Ophiothrix fragilis and Ophiothrix sp. II. Using phylogenetic and species delimitation techniques based on two mitochondrial genes (cytochrome c oxidase I and 16S rRNA) we prove the existence of a new congeneric species (Ophiothrix sp. III), occurring in the deep Atlantic coast of the Iberian P...
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ژورنال
عنوان ژورنال: Aquatic Biology
سال: 2009
ISSN: 1864-7782,1864-7790
DOI: 10.3354/ab00138