Results 31 to 40 of about 636,721 (274)

Structural Elucidation of a Glucan from Trichaster palmiferus by Its Degraded Products and Preparation of Its Sulfated Derivative as an Anticoagulant

open access: yesMarine Drugs, 2023
Echinoderms have been attracting increasing attention for their polysaccharides, with unique chemical structure and enormous potential for preparing drugs to treat diseases.
Haiqiong Ma   +12 more
doaj   +1 more source

Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea) [PDF]

open access: yes, 2013
Hypotheses on the age and possible antiquity of the modern deep-sea fauna put forward to date almost all agree on the assumption that the deep-sea fauna is largely the result of colonisation from shallow-water environments. Here, the fossil record of the
Thuy, Ben, Ben Thuy
core   +1 more source

Discovery of novel representatives of bilaterian neuropeptide families and reconstruction of neuropeptide precursor evolution in ophiuroid echinoderms [PDF]

open access: yesOpen Biology, 2017
Neuropeptides are a diverse class of intercellular signalling molecules that mediate neuronal regulation of many physiological and behavioural processes.
Meet Zandawala   +7 more
doaj   +1 more source

Global Diversity of Brittle Stars (Echinodermata: Ophiuroidea)

open access: yesPLoS ONE, 2012
This review presents a comprehensive overview of the current status regarding the global diversity of the echinoderm class Ophiuroidea, focussing on taxonomy and distribution patterns, with brief introduction to their anatomy, biology, phylogeny, and palaeontological history. A glossary of terms is provided.
Stöhr, Sabine   +3 more
openaire   +7 more sources

Evolutionary innovations in Antarctic brittle stars linked to glacial refugia [PDF]

open access: yesEcology and Evolution, 2021
AbstractThe drivers behind evolutionary innovations such as contrasting life histories and morphological change are central questions of evolutionary biology. However, the environmental and ecological contexts linked to evolutionary innovations are generally unclear.
Sally C. Y. Lau   +4 more
openaire   +5 more sources

Strategy of micro-environmental adaptation to cold seep among different brittle stars’ colonization

open access: yesFrontiers in Ecology and Evolution, 2022
Diffusing fluid from methane seepage in cold seep field creates zones with physicochemical gradients and divergent ecosystems like the mussel beds and clam beds.
Zelin Chen   +11 more
doaj   +1 more source

New Echinoderm-Crab Epibiotic Associations from the Coastal Barents Sea

open access: yesAnimals, 2021
During diving surveys for a Russian research project that monitored introduced species, red king crabs (Paralithodes camtschaticus) were collected at a coastal site of the Barents Sea to study the structure and dynamics of this species.
Alexander G. Dvoretsky   +1 more
doaj   +1 more source

Decentralized Control Mechanism for Determination of Moving Direction in Brittle Stars With Penta-Radially Symmetric Body

open access: yesFrontiers in Neurorobotics, 2019
A brittle star, an echinoderm with penta-radially symmetric body, can make decisions about its moving direction and move adapting to various circumstances despite lacking a central nervous system and instead possessing a rather simple distributed nervous
Takeshi Kano   +4 more
doaj   +1 more source

The palaeozoic brittle-stars of Victoria

open access: yes, 1934
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Withers, Robert B   +1 more
openaire   +1 more source

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