Results 61 to 70 of about 2,429 (200)

Beroe abyssicola Patterns of Predation: A Behavioral Analysis

, 2021
Ctenophores play an important role in many marine ecosystems worldwide and affect multiple trophic levels. They consume large amounts of plankton while, in turn, are also consumed by fish.
Beemer, Jacob
core  

Extensive mitochondrial gene rearrangements in Ctenophora: insights from benthic Platyctenida

BMC Evolutionary Biology, 2018
Background Complete mitochondrial (mt) genomes have been sequenced for thousands of animals and represent a molecule of choice for many evolutionary studies. Nevertheless, some animal groups have remained under-sampled.
Hanan Arafat, Ada Alamaru, Carmela Gissi, Dorothée Huchon   +3 more
doaj   +1 more source

Aggregations of a Sessile Ctenophore, Coeloplana sp., on Indo-West Pacific Gorgonians

Diversity, 2023
We document the benthic ctenophores Coeloplana sp. and Vallicula multiformis from Oman, extending their geographic range. A new Coeloplana species was found forming aggregations on gorgonians of two octocoral host genera, Melithaea and Euplexaura ...
Kaveh Samimi-Namin, Michel R. Claereboudt, Bert W. Hoeksema, Catherine S. McFadden, Nicholas Bezio, Gustav Paulay   +5 more
doaj   +1 more source

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

Photochemistry and Photobiology, EarlyView.
The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton, Ian D. Deas, J. Kennon Smith, Samuel B. Robinson, Adam M. Reitzel, Julian P. S. Smith III   +5 more
wiley   +1 more source

Gelatinous macrozooplankton diversity and distribution dataset for the North Sea and Skagerrak/Kattegat during January-February 2021

Data in Brief, 2022
This data article includes a qualitative and quantitative description of the gelatinous macrozooplankton community of the North Sea during January-February 2021.
Louise G. Køhler, Bastian Huwer, José Martín Pujolar, Malin Werner, Karolina Wikström, Anders Wernbo, Maria Ovegård, Cornelia Jaspers   +7 more
doaj   +1 more source

The impacts of biological invasions

Biological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

Genomic insights into Wnt signaling in an early diverging metazoan, the ctenophore Mnemiopsis leidyi

EvoDevo, 2010
Background Intercellular signaling pathways are a fundamental component of the integrating cellular behavior required for the evolution of multicellularity.
Pang Kevin, Ryan Joseph F, Mullikin James C, Baxevanis Andreas D, Martindale Mark Q   +4 more
doaj   +1 more source

ParaHox Genes Revisited: From Gut Patterning to Integrated Axial and Neural Organization in Rotifera

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 4, Page 357-369, June 2026.
In rotifers, ParaHox genes show a dispersed genomic organization, with Xlox absent across gnathiferans. Exclusive neuronal expression of Gsx and Cdx reveals that ancestral ParaHox genes coordinated neural and epithelial development beyond gut patterning, suggesting an integrated role in early bilaterian body plan organization.
Andreas C. Fröbius, David B. Mark Welch, Holger Herlyn   +2 more
wiley   +1 more source

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, Selene L. Fernandez-Valverde, Ryan J. Taft, Bernard M. Degnan   +3 more
doaj   +1 more source

Acoustic evidence for topographic blocking on a steep submarine canyon wall

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Diel vertical migration (DVM) is the largest mass‐movement of animals on Earth, with profound ecological and biogeochemical consequences. DVM has mostly been studied in the open ocean; however, at steep slopes, pelagic animals including vertical migrators must contend with the seafloor, emphasizing the importance of understanding DVM in these ...
Astrid B. Leitner, Chad M. Waluk, Kim R. Reisenbichler, Rob E. Sherlock, Bruce H. Robison, Kelly J. Benoit‐Bird   +5 more
wiley   +1 more source