Results 51 to 60 of about 1,937 (200)

When invasions go unnoticed: Public perception of the freshwater jellyfish Craspedacusta sowerbii in Europe

open access: yesPeople and Nature, Volume 8, Issue 6, Page 1957-1973, June 2026.
Abstract Biological invasions are a major driver of biodiversity loss, yet inconspicuous or “cryptic” species often escape detection and public awareness, limiting management responses. We investigated the freshwater jellyfish Craspedacusta sowerbii, likely native to China and now present on six continents, through a 22‐month multilingual online survey
Guillaume Marchessaux   +17 more
wiley   +1 more source

Environmental patterns and biomass distribution of gelatinous macrozooplankton. Three study cases in the South-western Atlantic Ocean

open access: yesScientia Marina, 2000
Periodic swarms or blooms of gelatinous macrozooplankton have a negative effect on many human activities such as tourism, fisheries, and industry, but for several reasons (sampling procedures, underestimation of their real abundance, etc.), they have ...
H. W. Mianzan, R. A. Guerrero
doaj   +1 more source

Small jellyfish, large consequences: The overlooked predatory role of hydromedusae in subtropical estuarine ecosystems

open access: yesLimnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Hydromedusae are often overlooked in pelagic trophic ecology compared to large scyphozoans. We investigated the diet, prey selectivity, ingestion rates, digestion times, and predation impacts of the native Liriope tetraphylla and non‐indigenous species Cnidostoma fallax and Moerisia inkermanica in a subtropical estuary of the southwestern ...
Guilherme M. von Montfort   +4 more
wiley   +1 more source

The first occurrence of the ctenophore Mnemiopsis leidyi in the North Sea [PDF]

open access: yes, 2007
After the discovery of large densities of Mnemiopsis leidyi in the Baltic Sea near Kiel by Javidpour et al. (First record of Mnemiopsis leidyi A. Agassiz 1865 in the Baltic Sea, 2006) in October 2006, we investigated the gelatinous zooplankton in the ...
Malzahn, Arne   +6 more
core   +1 more source

Benthoplanidae, a new family of benthic ctenophores (Platyctenida), based on morphological and genetic data

open access: yesJournal of Systematics and Evolution, Volume 64, Issue 2, Page 387-400, March 2026.
The benthic ctenophore Benthoplana meteoris (adults left and bottom, planktonic juveniles to the top right), type species for the genus, which in turn is type for the newly erected family: Benthoplanidae (Ctenophora, Platyctenida). Abstract We present a phylogenetic analysis of benthic ctenophores of the order Platyctenida, sampling all but one genus ...
Nicholas Bezio   +2 more
wiley   +1 more source

Par protein localization during the early development of Mnemiopsis leidyi suggests different modes of epithelial organization in the metazoa

open access: yeseLife, 2020
In bilaterians and cnidarians, epithelial cell-polarity is regulated by the interactions between Par proteins, Wnt/PCP signaling pathway, and cell-cell adhesion. Par proteins are highly conserved across Metazoa, including ctenophores.
Miguel Salinas-Saavedra   +1 more
doaj   +1 more source

Oceanographic heterogeneity facilitates gelatinous zooplankton niche space and diversity

open access: yesLimnology 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

Recolonization of germ-free Mnemiopsis leidyi considering different microbial diversity

open access: yes, 2022
The comb jelly Mnemiopsis leidyi counts as one of the most invasive marine species in the world due to its rapid adaptation to new habitats. Since different populations of Mnemiopsis all contain a specific core microbiome, it is assumed that their ...
Schmidt, Samantha
core  

Assessing the success of a horizon scanning approach in predicting invasive non‐native species arrival

open access: yesJournal of Applied Ecology, Volume 63, Issue 1, January 2026.
We conclude that horizon scanning provides a rapid, affordable and successful mechanism to predict the arrival of high‐risk INNS. We highlight the importance of citizen science, including biological recording, and of local expertise for detecting and documenting arrival of INNS.
Jodey M. Peyton   +42 more
wiley   +1 more source

Nuclear receptors from the ctenophore Mnemiopsis leidyi lack a zinc-finger DNA-binding domain: lineage-specific loss or ancestral condition in the emergence of the nuclear receptor superfamily?

open access: yesEvoDevo, 2011
Background Nuclear receptors (NRs) are an ancient superfamily of metazoan transcription factors that play critical roles in regulation of reproduction, development, and energetic homeostasis.
Reitzel Adam M   +6 more
doaj   +1 more source

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