Results 41 to 50 of about 1,635 (199)

The Numerical Comparison of Flow Patterns and Propulsive Performances for the Hydromedusae Sarsia Tubulosa and Aequorea Victoria [PDF]

, 2009
The thrust-generating mechanism of a prolate hydromedusa Sarsia tubulosa and an oblate hydromedusa Aequorea victoria was investigated by solving the incompressible Navier–Stokes equations in the swirl-free cylindrical coordinates.
Colin, Sean, Mohseni, Kamran, Sahin, Mehmet   +2 more
core   +1 more source

Oceanographic heterogeneity facilitates gelatinous zooplankton niche space and diversity

Limnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Gelatinous zooplankton serve diverse ecological roles in shelf food webs—from grazers to predators. However, their spatial niches are poorly resolved, especially at detailed taxonomic levels, due to conventional techniques that are unable to measure distributions at fine spatial scales.
Adam T. Greer, Luciano M. Chiaverano
wiley   +1 more source

Two new pleurodiran turtles from the Portezuelo Formation (Upper Cretaceous) of northern Patagonia, Argentina [PDF]

, 2003
Fil: De la Fuente, Marcelo Saúl. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo.
De la Fuente, Marcelo Saúl
core   +1 more source

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

Limnology 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, Sakina‐Dorothée Ayata, Cornelia Jaspers, Fabien Lombard   +3 more
wiley   +1 more source

Prey Resource Utilization by Coexistent Hydromedusae from Friday Harbor, Washington, USA [PDF]

, 2002
Prey selection patterns were quantified for a sympatric group of hydromedusae from Friday Harbor, WA. Selection patterns varied between species, but were largely replicable between sample dates and resembled dietary patterns found in similar studies from
Colin, Sean, Costello, John H.
core   +1 more source

Medusae and ctenophores from the Bahia Blanca Estuary and neighboring inner shelf (Southwest Atlantic Ocean, Argentina) [PDF]

, 2017
An updated checklist of medusae and ctenophores is presented for the first time for the area comprised by the Bahía Blanca Estuary, the adjacent shelf El Rincón and Monte Hermoso beach, on the southwest coast of Buenos Aires province (Argentina).
Dutto, María Sofía, Genzano, Gabriel Nestor, Hoffmeyer, Monica Susana, Lecanda, Maria Julieta, Pratolongo, Paula Daniela, Schiariti, Agustin   +5 more
core   +1 more source

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

Limnology 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

An asymptotically normal test for the selective neutrality hypothesis

, 2008
An important parameter in the study of population evolution is $\theta=4N\nu$, where $N$ is the effective population size and $\nu$ is the rate of mutation per locus per generation. Therefore, $\theta$ represents the mean number of mutations per site per
Aluísio Pinheiro, Hildete P. Pinheiro, Pranab K. Sen, Samara Kiihl   +3 more
core   +2 more sources

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

Marine 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, Henrike Andresen, Javier Díaz Pérez, Tim Dudeck, Gabriela Figueiredo, Thierry Frédou, Dawit Y. Ghebrehiwet, Cristina González‐García, José M. Landeira, Simone Lira, Emilio Marañón, Leandro Nole Eduardo, Ralf Schwamborn   +12 more
wiley   +1 more source

Biologia de quelônios em uma lagoa no Parque Estadual da Serra do Tabuleiro [PDF]

, 2015
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.No Brasil são conhecidas 36 espécies de quelônios, que podem ser exclusivamente terrestres, marinhos ou dulcícolas. Apesar desta diversidade, estudos sobre a
Santos, Thiciane Patrycia Gonçalves dos
core