Results 71 to 80 of about 1,935 (201)
The reaction system of luminescence in Mnemiopsis.
Experimental Biology and Medicine, 1923 In dark adapted Mnemiopsis luminescence occurs upon stimulation such as gentle agitation of the vessel containing the animal. If agitation is continued the light keeps up for a few seconds and then ceases. After a few minutes' rest the reaction may be obtained again. If rested animals are exposed to light of sufficient intensity and duration they cease
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The locus of the action of veratrin in Mnemiopsis.
Experimental Biology and Medicine, 1923 Specimens of Mnemiopsis immersed in a solution of veratrin (1 : 1345) in sea water show immediate inhibition of beats of the swimming plates, these stopping in the upright position. If, now, single plates or groups of plates be isolated from a specimen, in two minutes these begin beating and continue to do so for half an hour or longer in the solution ...
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Digestion time and feeding intensity of the larval ctenophore Mnemiopsis leidyi A. Agassiz (Ctenophora, Lobata) [PDF]
, 2008 Effect of nutrition conditions (food species and concentration, prey and predator sizes, prey number in stomach) on digestion time and ingestion rate in lobate ctenophore Mnemiopsis leidyi larvae have been studied Digestion time of the larvae in length ...
Павловская, Т. В. +4 more
core
Transitions of Mnemiopsis leidyi (Ctenophora: Lobata) from a native to an exotic species: a review [PDF]
, 2012 The genus Mnemiopsis is comprised of a single species, Mnemiopsis leidyi A. Agassiz, 1865, that has recently made the transition from a distribution limited to the Atlantic coasts of North and South America to an invasive range that includes the Black ...
Purcell, J. E +4 more
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Diverse RNA interference strategies in early-branching metazoans
BMC Evolutionary Biology, 2018 Background Micro RNAs (miRNAs) and piwi interacting RNAs (piRNAs), along with the more ancient eukaryotic endogenous small interfering RNAs (endo-siRNAs) constitute the principal components of the RNA interference (RNAi) repertoire of most animals.
Andrew D. Calcino +3 more
doaj +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 +3 more
wiley +1 more source
Multigenerational laboratory culture of pelagic ctenophores and CRISPR-Cas9 genome editing in the lobate Mnemiopsis leidyi [PDF]
, 2022 Despite long-standing experimental interest in ctenophores due to their unique biology, ecological influence and evolutionary status, previous work has largely been constrained by the periodic seasonal availability of wild-caught animals and difficulty ...
Bubel, M +4 more
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MNEMIOPSIS LEIDYI IMPACT ON SOME TROPHICAL CHAINS OF THE CASPIAN SEA
Юг России: экология, развитие, 2015 Results of monitoring investigations over the past 10 years are presented concerning the distribution of a new species-invader in the Caspian Sea, Mnemiopsis leidyi.
A. M. KAMAKIN +2 more
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Connectivity and Population Structure in a Marginal Sea—A Review
Diversity and Distributions, Volume 31, Issue 7, July 2025.ABSTRACT Aim The current biodiversity crisis calls for conservation measures that limit or reduce the negative human impact on key habitats and vulnerable wild populations. To effectively protect biodiversity at all levels, including intra‐specific diversity, conservation measures should, ideally, be aligned with the connectivity and genetic structure ...
Simon Henriksson +8 more
wiley +1 more source
The Hox-TALE has been wagging for a long time [PDF]
, 2014 Hox and TALE proteins interact in a sea anemone, just as they do in flies and mice, indicating that the Hox-TALE system originated very early in animal evolution.Peer ...
David EK Ferrier +1 more
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