Results 21 to 30 of about 1,571 (170)

Development and interaction of ctenophores Beroe ovate Bruguière, 1789 and Mnemiopsis leidyi A. Agassiz, 1865 in the coastal zone of the Middle Caspian Sea

open access: yesЮг России: экология, развитие, 2022
Aim. Analysis of the distribution and status of ctenophores Вeroe ovata and Mnemiopsis leidyi, and assessment of the parameters of their interaction in the Middle Caspian Sea.Material and Methods.
S. V. Vostokov   +8 more
doaj   +1 more source

Diffusion tubes: a method for the mass culture of ctenophores and other pelagic marine invertebrates [PDF]

open access: yesPeerJ, 2020
The culture of pelagic marine invertebrates, especially the ctenophore Mnemiopsis leidyi, has been demonstrated in past studies dating back to the 1960s; however, the mass culture of delicate pelagic invertebrates has remained elusive. By using a pair of
Wyatt L. Patry   +3 more
doaj   +2 more sources

Evidence for de novo Biosynthesis of the Luminous Substrate Coelenterazine in Ctenophores

open access: yesiScience, 2020
Summary: Coelenterazine is a key substrate involved in marine bioluminescence which is used for light-production by at least nine phyla. Some luminous animals, such as the hydromedusa Aequorea, lack the ability to produce coelenterazine endogenously and ...
Manabu Bessho-Uehara   +5 more
doaj   +1 more source

Seasonal succession of gelatinous zooplankton (medusae and ctenophores) from Mar del Plata Harbor, Argentina (SW Atlantic Ocean)

open access: yesEcología Austral, 2019
Temporal variation of the population dynamics of the medusae and ctenophores (gelatinous zooplankton) is described over an annual cycle in the Mar del Plata Harbor, Argentina.
F. Alejandro Puente Tapia   +1 more
doaj   +1 more source

Flow cytometry methods for targeted isolation of ctenophore cells

open access: yesFrontiers in Marine Science, 2023
Cell suspension fluidics, such as flow cytometry (FCS) and fluorescence-activated cell sorting (FACS), facilitates the identification and precise separation of individual cells based on phenotype.
Abigail C. Dieter   +9 more
doaj   +1 more source

Quantifying the feeding behavior and trophic impact of a widespread oceanic ctenophore

open access: yesScientific Reports, 2023
Oceanic ctenophores are widespread predators on pelagic zooplankton. While data on coastal ctenophores often show strong top-down predatory impacts in their ecosystems, differing morphologies, prey capture mechanisms and behaviors of oceanic species ...
Betsy Potter   +7 more
doaj   +1 more source

Conserved novel ORFs in the mitochondrial genome of the ctenophore Beroe forskalii [PDF]

open access: yesPeerJ, 2020
To date, five ctenophore species’ mitochondrial genomes have been sequenced, and each contains open reading frames (ORFs) that if translated have no identifiable orthologs. ORFs with no identifiable orthologs are called unidentified reading frames (URFs).
Darrin T. Schultz   +5 more
doaj   +2 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

Life beneath the ice: jellyfish and ctenophores from the Ross Sea, Antarctica, with an image-based training set for machine learning [PDF]

open access: yesBiodiversity Data Journal, 2021
Southern Ocean ecosystems are currently experiencing increased environmental changes and anthropogenic pressures, urging scientists to report on their biodiversity and biogeography.
Gerlien Verhaegen   +2 more
doaj   +3 more sources

Occurrence of Isopenicillin-N-Synthase Homologs in Bioluminescent Ctenophores and Implications for Coelenterazine Biosynthesis. [PDF]

open access: yesPLoS ONE, 2015
The biosynthesis of the luciferin coelenterazine has remained a mystery for decades. While not all organisms that use coelenterazine appear to make it themselves, it is thought that ctenophores are a likely producer.
Warren R Francis   +4 more
doaj   +1 more source

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