Results 61 to 70 of about 1,256 (206)

Revision of some ophiuroid records (Echinodermata: Ophiuroidea) from Argentina [PDF]

open access: yes, 2015
The taxonomy of some ophiuroids reported from off Argentina, western Antarctica and the SW Atlantic Ocean is reviewed. The species Amphilepis sanmatiensis, known only from the small holotype, is a synonym of Amphioplus lucyae.
Brogger, M., O'Hara, T.
core   +2 more sources

Evaluating the secondary bioactive metabolites in Geodia corticostylifera

open access: yesBrazilian Journal of Biology, 2022
Ophiactis savignyi could be discovered all over the world in tropical marine environments. People could have aided in the spread of O. savignyi, particularly in the western and eastern populations of Panama's Isthmus. The brittle star Ophiactis savignyi,
W. K. Abdelbasset   +8 more
doaj   +1 more source

Limited connectivity of zooplankton communities across the Labrador Front: role of physical oceanography, insights from individual motility

open access: yesOikos, Volume 2026, Issue 8, August 2026.
Near the western margin of the highly productive Labrador Sea, the Labrador Current creates a large and steep oceanographic front between the Arctic‐origin shelf waters and the Atlantic offshore waters (i.e. the Labrador Front), presumably segregating or accumulating plankton communities.
Laure Vilgrain   +7 more
wiley   +1 more source

Echinoderm Fauna of Chuuk, The Federated States of Micronesia

open access: yesAnimal Systematics, Evolution and Diversity, 2014
Micronesia is an island nation located north of Papua New Guinea in the Pacific Ocean. A survey was conducted on Chuuk, which is one of the four main islands of Micronesia, from 11-25 Nov 2012.
Lee, Taekjun, Shin, Sook
doaj   +1 more source

Evidence of Cheliped Autotomy and Regeneration in the Lower Miocene Crab Achelous monspeliensis From Portugal

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Crab autotomy with evidence of regeneration is described for the first time in the fossil record. Autotomy is a defensive behavior that affects more males than females of Achelous monspeliensis and may be related to mating season. ABSTRACT Autotomy—the voluntary shedding of a limb as a defensive response to predation, intraspecific aggression, or ...
Carlos Neto de Carvalho, Pedro Marrecas
wiley   +1 more source

First record of Ophioderma ensiferum (Echinodermata: Ophiuroidea) from the southeastern continental shelf of the Gulf of Mexico and from an anchialine cave

open access: yesRevista Mexicana de Biodiversidad, 2013
Two specimens of Ophioderma ensiferum Hendler and Miller, 1984 were collected at 2 different localitiesin the Yucatán Peninsula, Mexico. The first one collected at Alacranes Reef, Yucatán, a transition zone between theGulf of Mexico and the Caribbean ...
Yoalli Quetzalli Hernández Díaz   +3 more
doaj   +1 more source

Taxonomic Distribution and Molecular Evolution of Mytilectins

open access: yesMarine Drugs, 2023
R-type lectins are a widespread group of sugar-binding proteins found in nearly all domains of life, characterized by the presence of a carbohydrate-binding domain that adopts a β-trefoil fold.
Marco Gerdol   +6 more
doaj   +1 more source

Population genetics and evolutionary history of the intertidal brittle star Ophiothrix (Ophiothrix) exigua in the northern China Sea

open access: yesEcology and Evolution
Ophiothrix (Ophiothrix) exigua is a common brittle star in the northwestern Pacific. As a dominant species, O. exigua inhabiting the intertidal rocky ecosystem are affected by multiple environmental stressors, but molecular insights into their genetic ...
Qian Zhang   +9 more
doaj   +1 more source

Exploring Mesophotic Coral Reef Boundaries Using Environmental DNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA (eDNA) metabarcoding reveals boundaries along depth gradients in shallow and mesophotic coral reefs. Analysis of metazoan amplicon sequence variants (ASVs) uncovers changes in community structure from shallow to deep reefs, highlighting a localized eDNA footprint and its potential for monitoring mesophotic and deep‐sea habitats ...
Aran Sofer, Omri Bronstein
wiley   +1 more source

A Note on certain Ophiuroids in the Indian Museum

open access: yesRecords of the Zoological Survey of India, 1913
No Abstract.
openaire   +2 more sources

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