Ophiothrix fragilis (Abildgaard, 1789) - GBIF.
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Ophiothrix fragilis brittlestar bed. Image width ca XX cm. Image: Keith Hiscock: Phylum: Echinodermata: Class: Ophiuroidea: Habitat Information: Found from the lower shore to circalittoral offshore habitats on hard substrata including bedrock, boulders and on coarse sediment. Most abundant on tideswept rock and on mixed coarse sediments. In the intertidal the species is found in crevices and.
Ophiothrix fragilis. By D. Jones. Abstract. Dense aggreagtion of brittle stars Ophiothrix fragilis with some small clusters of Alcyonium digitatum. The Rocks are encrusted with Pomatocerus sp Topics: Ophiothricidae, Alcyoniidae, Ophiothrix.
The brittle-star Ophiothrix fragilis (Abildgaard) is widely distributed in the English Channel and particularly on pebble areas which are characterised by strong tidal currents. The main populations are located between 20 and 80 m depth. Although larval dispersal and settlement are apparently under an unfavourable high hydrodynamical constraint (a megatidal regime which generates high tidal.
The Spiny Brittle star, Ophiothrix spiculata Le Conte, 1851, is a member of the Ophiuroidea another of the five classes of echinoderms. Brittle stars have a central disk that is clearly separated from long flexible arms often covered with spines. O. spiculata ranges from Moss Beach, California to Peru including the Galapagos Islands. It lives from the low rocky intertidal, under rocks, in.
Ophiothrix angulata have planktotrophic larvae that develop rapidly (Hendler et al. 1999, Hendler 2006). As with other species of Ophiothrix, planktotrophic larvae likely settle and undergo metamorphosis in habitats of adult conspecifics (Morgan and Jangoux 2005). In one study, a juvenile angular brittle star was reported to metamorphose in the water column and recruit on the green alga.
New records of Ophiothrix fragilis (Abildgaard, 1789) and Ophioderma logicauda (Bruzelius, 1805) in the marine part of Bosnia and Herzegovina.