Results 51 to 60 of about 2,253 (199)

Biomass‐to‐volume ratio as a central continuous functional trait for marine zooplankton

open access: yesLimnology and Oceanography, Volume 70, Issue 9, Page 2673-2687, September 2025.
Abstract Gelatinous zooplankton are an important component of many ecosystems and important for ecosystem structure and carbon cycling. However, this group is generally not considered in biogeochemical models. Here we investigate the biomass‐to‐volume ratio as an underappreciated “master trait” that allows for the incorporation of a large diversity of ...
Julie Lemoine   +3 more
wiley   +1 more source

Morphology, Swimming Performance and Propulsive Mode of Six Co-occurring Hydromedusae [PDF]

open access: yes, 2002
Jet propulsion, based on examples from the Hydrozoa, has served as a valuable model for swimming by medusae. However, cnidarian medusae span several taxonomic classes (collectively known as the Medusazoa) and represent a diverse array of morphologies and
Colin, Sean, Costello, John H.
core   +2 more sources

Questioning the rise of gelatinous zooplankton in the World's oceans [PDF]

open access: yes, 2012
During the past several decades, high numbers of gelatinous zooplankton species have been reported in many estuarine and coastal ecosystems. Coupled with media-driven public perception, a paradigm has evolved in which the global ocean ecosystems are ...
Acuña   +81 more
core   +4 more sources

Medusae, siphonophores and ctenophores of the Magellan Region

open access: yesScientia Marina, 1999
Medusae, siphonophores and ctenophores were conspicuous and relatively abundant organisms in the Magellan Straits, Beagle Channel and adjacent waters during the Victor Hensen campaign in 1994.
Francesc Pagès, Covadonga Orejas
doaj   +1 more source

The influence of the Atlantic and regional climate variability on the long-term changes in gelatinous carnivore populations in the northwestern Mediterranean [PDF]

open access: yes, 2008
We investigated potential connections between climate and the population size of gelatinous carnivores in the northwestern Mediterranean. The interannual variability of large- and meso-scale climate factors was related to gelatinous carnivore dynamics by
Buecher, E.   +2 more
core   +1 more source

Resolving abrupt frontal gradients in zooplankton community composition and marine snow fields with an autonomous Zooglider

open access: yesLimnology and Oceanography, Volume 70, Issue S1, Page S102-S120, July 2025.
Abstract An autonomous Zooglider navigated across the California Current Front into low salinity, minty waters characteristic of the California Current proper in both summers of 2019 and 2021. Diving to 400 m depth, Zooglider transited another near‐surface frontal gradient somewhat inshore. These frontal gradients were generally associated with changes
Sven Gastauer, Mark D. Ohman
wiley   +1 more source

Two new species of Hydromedusae from Queensland, Australia (Hydrozoa, Leptothecata)

open access: yesZooKeys, 2018
Two new species of small hydromedusae were found during routine monitoring in coastal waters of eastern Australia and are here described. The first, Melicertissa antrichardsoni Uribe-Palomino & Gershwin, sp.
Julian Uribe-Palomino   +2 more
doaj   +3 more sources

Seasonal Changes of Size Spectra of the Benguela Offshore Mesopelagic Ecosystem Compartment in Relation to Primary Production

open access: yesMarine Ecology, Volume 46, Issue 4, July/August 2025.
ABSTRACT Seasonal differences in marine size spectra of micronekton at the shelf‐ocean interface of the northern (NBUS) and southern Benguela upwelling system (SBUS) in Feb–Mar 2019 and Sep–Oct 2021 were analysed for mesopelagic fishes and total micronekton, the latter also including invertebrates.
Heino O. Fock   +12 more
wiley   +1 more source

Hydromedusae (Cnidaria) of the Chilean southern channels (from the Corcovado Gulf to the Pulluche-Chacabuco Channels)

open access: yesScientia Marina, 2007
Hydromedusae collected in epipelagic waters of the channels in southern Chile, between the Corcovado Gulf and the Pulluche-Chacabuco channels, were analysed. A total of 23 species were identified and recorded for the first time in this region.
Sergio Palma   +2 more
doaj   +1 more source

Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean

open access: yesEnvironmental DNA, Volume 7, Issue 2, March/April 2025.
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen   +4 more
wiley   +1 more source

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