Results 31 to 40 of about 2,253 (199)

Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean

open access: yesScientia Marina, 1998
Two new species of hydromedusae (Foersteria antoniae and Cunina simplex) are described from plankton collected in sediment traps placed in the Lacaze-Duthiers Submarine Canyon and along Banyuls-sur-Mer coast (northwestern Mediterranean).
J. M. Gili   +5 more
doaj   +1 more source

Fast-swimming hydromedusae exploit velar kinematics to form an optimal vortex wake [PDF]

open access: yes, 2006
Fast-swimming hydromedusan jellyfish possess a characteristic funnel-shaped velum at the exit of their oral cavity that interacts with the pulsed jets of water ejected during swimming motions.
Colin, Sean P.   +2 more
core   +2 more sources

Fauna of the Mediterranean Hydrozoa.

open access: yesScientia Marina, 2004
This study provides a systematic account of the hydrozoan species collected up to now in the Mediterranean Sea. All species are described, illustrated and information on morphology and distribution is given for all of them. This work is the most complete
Jean Bouillon   +5 more
doaj   +1 more source

Morphological diversity of medusan lineages constrained by animal–fluid interactions [PDF]

open access: yes, 2007
Cnidarian medusae, commonly known as jellyfish, represent the earliest known animal taxa to achieve locomotion using muscle power. Propulsion by medusae requires the force of bell contraction to generate forward thrust.
Colin, Sean P.   +2 more
core   +2 more sources

Hidromedusas mesozooplanctónicas del océano Pacífico colombiano

open access: yesBiota Colombiana, 2010
Within the marine zooplankton hydromedusae have a high taxonomic and an ecological significance, despite which little is known about these organisms for the Colombian Pacific Ocean (OPC).
Ángela María-Baldrich, Raúl H. López
doaj   +1 more source

Reynolds number limits for jet propulsion: A numerical study of simplified jellyfish [PDF]

open access: yes, 2010
The Scallop Theorem states that reciprocal methods of locomotion, such as jet propulsion or paddling, will not work in Stokes flow (Reynolds number = 0).
Herschlag, Gregory, Miller, Laura A.
core   +3 more sources

Hydromedusae: Pandeidae, Tiarannidae [PDF]

open access: yesJournal of the Marine Biological Association of the United Kingdom, 1955
The nematocysts of the three species of Leptomedusae, Aequorea forskalea, A. vitrina, and A. pensilis, and of the two siphonophores Agalma elegans and Velella velella are described.The specific characters of the three species of Aequorea are discussed and it is shown that A.
openaire   +3 more sources

Kinematic comparison of bell contraction by four species of hydromedusae

open access: yesScientia Marina, 2000
Bell form strongly affects the hydrodynamic performance of swimming hydromedusae. Although the relationship between bell shape and hydrodynamic parameters has been documented for static models of different bell shapes, the dynamic differences in ...
M. D. Ford, J. H. Costello
doaj   +1 more source

Description of Some Oceanic Hydromedusae from Japan [PDF]

open access: yes, 1997
Based on zooplankton collections made by Fisheries Three species of oceanic hydromedusae, Sminthea eurygaster, Crossota alba, and Cytaeis tetrastyla, are described and illustrated based on the specimens collected in the Pacific Ocean, off central Honshu,
Kitamura, Minoru   +2 more
core   +1 more source

Occurrence of Haliscera bigelowi Kramp, 1947 (Hydromedusae: Trachymedusae: Halicreatidae) in Northern Arabian Sea, India [PDF]

open access: yesCheck List, 2012
The aim of this study is to present the record of the hydromedusa Haliscera bigelowi Kramp, 1947 from mesopelagic environment on the Northern Arabian Sea, India.
Pazhaniyappan Ezhilarasan   +3 more
doaj   +3 more sources

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