Results 11 to 20 of about 158 (107)

Voragonema tatsunoko (Trachymedusae: Rhopalonematidae), a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)

open access: yesZootaxa, 2010
Large numbers of a distinctive trachymedusa were observed at 1967 m depth just above the bottom in Suruga Bay, Japan, during a dive by the crewed submersible Shinkai 2000 in April 2002.
D. Lindsay, F. Pagés
semanticscholar   +3 more sources

The Ultrastructure of the Radial Neuromuscular System of the Jellyfish Liriope tetraphylla (Hydrozoa, Trachymedusae): Implications in Crumpling Behavior. [PDF]

open access: yesThe Biological Bulletin, 1991
The ultrastructure of the radial neuromuscular system of the trachymedusa Liriope tetraphylla was examined to determine the morphological substrate underlying crumpling behavior--the folding of the margin into the subumbrellar cavity by radial muscle ...
E. Scemes, J. McNamara
semanticscholar   +3 more sources

Environmental DNA surveys detect distinct metazoan communities across abyssal plains and seamounts in the western Clarion Clipperton Zone. [PDF]

open access: yesMol Ecol, 2020
Abstract The deep seafloor serves as a reservoir of biodiversity in the global ocean, with >80% of invertebrates at abyssal depths still undescribed. These diverse and remote deep‐sea communities are critically under‐sampled and increasingly threatened by anthropogenic impacts, including future polymetallic nodule mining.
Laroche O   +3 more
europepmc   +2 more sources

Diet of the gelatinous zooplankton in Hardangerfjord (Norway) and potential predatory impact by Aglantha digitale (Trachymedusae) [PDF]

open access: yesMarine Ecology Progress Series, 1996
9 pages, 3 figures, 4 tables The abundance, spatial distribution and diet of the gelatinous zooplankton collected at 5 stations along the Hardangerfjord (Norway) in spring 1992 were investigated. Medusae and siphonophores dominated in abundance and were concentrated in the upper 50 in where a strong halocline (28.2 to 34.5 psu) was present. Obelia spp.
Francesc Pagès   +2 more
semanticscholar   +3 more sources

Hidden gems: Scattered knowledge hampered freshwater jellyfish research over the past one-and-a-half centuries. [PDF]

open access: yesEcol Evol
Approximately 150 years of research on freshwater jellyfish globally have resulted in a considerable amount of information. However, this is not comprehensively available to most researchers worldwide. Scattered information allows only for a fragmented view of the research field, which mediated by climate change received increasing importance.
Lüskow F   +10 more
europepmc   +2 more sources

High Abundance of the Epibenthic Trachymedusa Ptychogastria polaris Allman, 1878 (Hydrozoa, Trachylina) in Subpolar Fjords along the West Antarctic Peninsula. [PDF]

open access: yesPLoS One, 2017
Medusae can be conspicuous and abundant members of seafloor communities in deep-sea benthic boundary layers. The epibenthic trachymedusa, Ptychogastria polaris Allman, 1878 (Hydrozoa: Trachylina: Ptychogastriidae) occurs in the cold, high latitude systems of both the northern and southern hemispheres, with a circumpolar distribution in Arctic and sub ...
Grange LJ   +4 more
europepmc   +7 more sources

Vampyrocrossota childressi, a new genus and species of black medusa from the bathypelagic zone off California (Cnidaria: Trachymedusae: Rhopalonematidae)

open access: yesOceanographic Literature Review, 1993
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
E. Thuesen
semanticscholar   +2 more sources

Observations of the Deep-Sea Trachymedusa Benthocodon pedunculata [PDF]

open access: yesInvertebrate Biology, 1997
Recent observations, from a remotely operated vehicle (ROV) working in the Monterey Submarine Canyon in the northeast Pacific and from the Johnson Sea Link II in the northwest Atlantic, revealed the presence of the trachymedusa Benthocodon pedunculata near the bottom in both oceans.
George I. Matsumoto   +2 more
openaire   +3 more sources

Atlas of the neuromuscular system in the Trachymedusa Aglantha digitale : Insights from the advanced hydrozoan [PDF]

open access: yesJournal of Comparative Neurology, 2019
Abstract Cnidaria is the sister taxon to bilaterian animals, and therefore, represents a key reference lineage to understand early origins and evolution of the neural systems. The hydromedusa Aglantha digitale is arguably the best electrophysiologically studied jellyfish ...
Tigran P. Norekian, Leonid L. Moroz
openaire   +4 more sources

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