Results 31 to 40 of about 2,287 (214)

Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]

, 2008
Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn, Ahlborn, Alexander, Anderson, Arai, Arkett, Behrends, Biewener, Boero, Bolsterli, Bone, Bonner, Bouillon, Boulenger, Brusca, Chapman, Clifford, Colin, Colin, Colin, Colin, Colin, Collins, Collins, Costello, Costello, Costello, Costello, D'Ambra, Daan, Dabiri, Dabiri, Dabiri, Daniel, Daniel, Daniel, DeMont, DeMont, DeMont, Fancett, Feigenbaum, Ford, Ford, Gerritsen, Gladfelter, Gladfelter, Gladfelter, Greene, Hansson, Hansson, Hansson, Hyman, Jankowski, Kramp, Larson, Larson, Larson, Larson, Larson, Larson, Lindahl, Mackie, Mackie, Madin, Marques, Matsakis, Mayer, Mayr, McGhee, Megill, Mianzan, Mills, Mills, Moller, Moller, O'Dor, Olesen, Omori, Pauly, Polis, Prairie, Prothero, Pugh, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Raskoff, Raup, Roper, Satterlie, Satterlie, Schneider, Schuchert, Seipel, Shorten, Sotje, Sullivan, Titelman, Totton, Tregouboff, Uye, Valentine, Valentine, Van Iten, Vogel, Widmer, Youngbluth   +114 more
core   +2 more sources

The Hunger Games: Stable Isotopes Indicate Winter Inter-Guild Competition for Resources by Marine Meso-Predators in the Sub-Arctic North Pacific. [PDF]

Ecol Evol
There is high niche overlap and potential for competition between Pacific salmon and non‐salmonid meso‐predators in the open ocean during winter. Food web structure and the level of niche overlap varied spatially and depending on the species. The biomass of the competitor species may exceed that of Pacific salmon, with potential implications for ...
Troina GC, Pakhomov EA, Weitkamp L, Somov A, Hunt BPV.   +4 more
europepmc   +2 more sources

Passive Energy Recapture in Jellyfish Contributes to Propulsive Advantage over other Metazoans [PDF]

, 2013
Gelatinous zooplankton populations are well known for their ability to take over perturbed ecosystems. The ability of these animals to outcompete and functionally replace fish that exhibit an effective visual predatory mode is counterintuitive because ...
Colin, Sean, Costello, John H., Dabiri, John O., Gemmell, Brad J., Priya, Shashank, Stewart, Colin J., Tafti, Danesh   +6 more
core   +3 more sources

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

Scientia 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, J. Bouillon, F. Pages, A. Palanques, P. Puig, S. Heussner   +5 more
doaj   +1 more source

On the nematocysts of hydromedusae [PDF]

Journal of the Marine Biological Association of the United Kingdom, 1938
The nematocysts of twenty species of Hydromedusae occurring at Plymouth are described. Of these, twelve were Anthomedusae and seven were Leptomedusae, and one was the Siphonophore, Muggiaea atlantica. The medusae fit very well into the generally accepted classification as regards the types of nematocysts they possess.
openaire   +1 more source

Fauna of the Mediterranean Hydrozoa.

Scientia 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, María Dolores Medel, Francesc Pagès, Josep María Gili, Ferdinando Boero, Cinzia Gravili   +5 more
doaj   +1 more source

Hidromedusas mesozooplanctónicas del océano Pacífico colombiano

Biota 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

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

, 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., Costello, John H., Dabiri, John O.   +2 more
core   +2 more sources

Kinematic comparison of bell contraction by four species of hydromedusae

Scientia 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

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

, 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