Results 101 to 110 of about 228 (122)
Effect of the brittle star Amphiura filiformis (Amphiuridae, Echinodermata) on oxygen flux into the sediment [PDF]
Limnology and Oceanography, 2003 O-2 plays a key role in early sedimentary diagenetic processes, but the effect of most macrofaunal species on the pathways and rates of supply of O-2 into the seabed are not well known. We investigated the effect of the ophiuroid Amphiura filiformis, one
Rutger Rosenberg, David Thistle
exaly +7 more sources
Proceedings of the Biological Society of Washington, 2011 Abstract The extant ophiuroid genus Triodia A. M. Clark, 1970 is a junior homonym of the lepidopteran genus Triodia Hubner, 1820. The replacement name Triplodia is herein proposed to accommodate Triodia abdita A. M. Clark, 1970, assigned to this monotypic genus.
Richard L. Turner
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Density-dependent migration in an Amphiura filiformis (Amphiuridae, Echinodermata) infaunal population [PDF]
Marine Ecology - Progress Series, 1997 The hypothesis that the semi-mobile brittle star Amphiura filiformis may have densitydependent migratory behaviour and that their dispersion may be dependent on food availability was examined. Sediment with intact fauna dominated by A. filiformis (-2250 ind. m-2) was brought to the laboratory in 0.22 m2 plexiglass boxes.
Rutger Rosenberg, R Rosenberg
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Some of the next articles are maybe not open access.
Swiss Journal of Palaeontology, 2018 A small, albeit diverse, assemblage of dissociated ophiuroid ossicles, mostly lateral arm plates, from the upper Maastrichtian Peedee Formation temporarily (August 1998) exposed at North Myrtle Beach (Horry County, South Carolina), is described and ...
Lea Numberger-Thuy +2 more
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Marine Biodiversity, 2013
Ophiodaphne scripta (Koehler, 1904) is an amphiurid brittle star exhibiting an unusual form of conspicuous sexual dimorphism and epibiosis. The males are much smaller and exist as epibionts on the larger female. These male–female pairs, attached mouth-to-mouth, are in turn epibionts on cake urchins such as Echinodiscus auritus Leske, 1778, attaching ...
Usha V. Parameswaran, Abdul Jaleel K. U.
exaly +2 more sources
Ophiodaphne scripta (Koehler, 1904) is an amphiurid brittle star exhibiting an unusual form of conspicuous sexual dimorphism and epibiosis. The males are much smaller and exist as epibionts on the larger female. These male–female pairs, attached mouth-to-mouth, are in turn epibionts on cake urchins such as Echinodiscus auritus Leske, 1778, attaching ...
Usha V. Parameswaran, Abdul Jaleel K. U.
exaly +2 more sources
Zoological Journal of the Linnean Society
Abstract Microphiopholis Turner, 1985 has been characterized by the presence of a ventrodorsal perforation in the arm vertebra and disc covered by small scales. However, its validity has been questioned based on these characters. This study evaluates whether the perforation in the arm vertebra and the size of the scales are exclusive ...
Livia Z Cano +3 more
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Abstract Microphiopholis Turner, 1985 has been characterized by the presence of a ventrodorsal perforation in the arm vertebra and disc covered by small scales. However, its validity has been questioned based on these characters. This study evaluates whether the perforation in the arm vertebra and the size of the scales are exclusive ...
Livia Z Cano +3 more
openaire +1 more source
Journal of the Marine Biological Association of the United Kingdom
Abstract The first report of Ophiophragmus luetkeni occurred in the British Virgin Islands; however, it was also recorded in Brazil, the United States Virgin Islands, and Trinidad and Tobago, yet its occurrence in Colombia was previously lacking.
Jayfreth Sierra-Gómez +3 more
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Abstract The first report of Ophiophragmus luetkeni occurred in the British Virgin Islands; however, it was also recorded in Brazil, the United States Virgin Islands, and Trinidad and Tobago, yet its occurrence in Colombia was previously lacking.
Jayfreth Sierra-Gómez +3 more
openaire +1 more source
Invertebrate Biology, 2006
Abstract. The highly modified development of the brittle star Amphiodia occidentalis is described from post‐fertilization to the juvenile stage. Fertilized eggs are negatively buoyant, ∼190 μm in diameter, surrounded by a thick hyaline layer and a tough fertilization envelope.
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Abstract. The highly modified development of the brittle star Amphiodia occidentalis is described from post‐fertilization to the juvenile stage. Fertilized eggs are negatively buoyant, ∼190 μm in diameter, surrounded by a thick hyaline layer and a tough fertilization envelope.
openaire +1 more source