Ophiuroidea

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Related to ophiuroid: class Ophiuroidea, Brittle stars

Ophiuroidea

a class of ECHINODERMS, comprising the brittle stars.
References in periodicals archive ?
In recent evolutionary history, dispersal from the Southern Ocean to South America has also been identified in the ophiuroid species Ophiura lymani (Sands et al.
Comparative larval energetics of an ophiuroid and an echinoid echinoderm.
Cuttlefish feed predominantly on fishes and crustaceans (Lipinski, 1992) and therefore the lack of any strong association with ophiuroids is to be expected.
Ophiuroids can autotomize arms and the aboral portion of the disc (Litvinova and Zharkova, 1977; Dobson, 1985; Dobson and Turner, 1989; Charlina et al.
Similar patterns of cell lineage and germ layer allocation are found in other echinoderms with obligately planktotrophic larvae such as the asteroid Asterina pectinifera (Kominami, 1983, 1984) and the ophiuroid aculeata (although in 0.
It includes a detailed description of the ultrastructure of the intact digestive system, since the only other published ultrastructural accounts of the intact ophiuroid digestive system have been based on species from a single family--the Ophiodermatidae (Schechter and Lucero, 1968; Deschuyteneer and Jangoux, 1978; Byrne, 1994)--the feeding biology of which is probably very different from that of the Amphiuridae.
Rapid colonization of ophiuroid wound sites by SCB has been observed, leading to the suggestion that SCB prevent infection by pathogenic bacteria through competitive exclusion or production of an antimicrobial compound (McKenzie and Kelly, 1994; Strahl et al.
Regarding ophiuroids (brittle stars), and their natural metabolite, an investigation has been conducted which compared them with other echinoderms.
This study reflects the significant higher density of sessile taxa (Porifera and the ascidean Paramolguta gregaria) and two small ophiuroids (Ophiacantha vivipara and Ophiura lymani), all of them conspicuous during the exploratory cruises conducted in 1995, in the sites where fishing effort was interrupted 4 y before the sampling in 2007 than in those sites continuously exploited and discusses the results considering previous knowledge on the damage that the process on board scallopers imparts on invertebrates bycatch.
Statistical analyses indicated no seasonal shift in diet in either our study or in that of Overstreet and Heard (1978), but we found that the diet of Atlantic croaker included a markedly higher frequency of occurrence for echinoderms, specifically ophiuroids, which were present in an average of 16% of stomachs, compared with <4% of the stomachs in the Gulf of Mexico study (Overstreet and Heard, 1978).
Across the Canadian Arctic, the five most common taxa were the ophiuroids Ophiocten sericeum (found at 55% of stations), Ophiacantha bidentata (at 48%) and Ophiopleura borealis (at 33%); the soft corals Nephtheidae (at 48%); and the onuphid polychaete Nothria conchylega (at 39%).