Results 21 to 30 of about 9,292 (216)
On the enigma of Palaenigma wrangeli (Schmidt), a conulariid with a partly non-mineralized skeleton [PDF]
PeerJ, 2021 Palaenigma wrangeli (Schmidt) is a finger-sized fossil with a tetraradiate conical skeleton; it occurs as a rare component in fossiliferous Upper Ordovician strata of the eastern Baltic Basin and is known exclusively from north Estonia.
Björn Kröger +5 more
doaj +2 more sources
Estado actual del conocimiento de la medusa bola de cañón (Stomolophus meleagris)
Epistemus, 2022 Las medusas son un grupo taxonómico de los más ancestrales dentro de la filogenia animal. Han habitado el planeta aproximadamente hace 500 millones de años sobreviviendo ante múltiples eventos de extinciones masivas, lo que las convierte en un grupo de ...
Carlos Daniel Sastré Velásquez +3 more
doaj +1 more source
Scientia Marina, 2012 The cnidocysts and the lytic, cyto- and neurotoxic potency of a large specimen of Cyanea capillata (L.) with 55 cm umbrella diameter were compared with those of a pooled C.
Heike Helmholz +5 more
doaj +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 +5 more
core +1 more source
The International Journal of Developmental Biology, 2007 Polyps of Scyphozoa have a cup-shaped body. At one end is the mouth opening surrounded by tentacles, at the other end is an attachment disc. The body wall consists of two tissue layers, the ectoderm and the endoderm, which are separated by an extracellular matrix, the mesoglea.
Stefan, Berking, Klaus, Herrmann
openaire +3 more sources
Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]
, 2008 Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn +114 more
core +2 more sources
Pelagic population dynamics of Aurelia sp in French Mediterranean lagoons [PDF]
, 2015 The pelagic dynamics of the cosmopolitan scyphozoan Aurelia sp. was investigated in three French Mediterranean lagoons, Thau, Berre and Bages-Sigean, which harbour resident populations.
Aoki +19 more
core +2 more sources
GSL-Scyphozoa-Hydrozoa-Staurozoa.pdf
, 2022 A mini-poster of the principal jellies and hydrozoans that may be expected on biodiversity surveys in Gulf of St. Lawrence (GSL). Updated from a page of a series here: Nozères (2022) Mini-posters of macroinvertebrates in captures from bottom trawl surveys of the estuary and northern Gulf of St.
openaire +2 more sources
Indoles induce metamorphosis in a broad diversity of jellyfish, but not in a crown jelly (Coronatae). [PDF]
PLoS ONE, 2017 Many animals go through one or more metamorphoses during their lives, however, the molecular underpinnings of metamorphosis across diverse species are not well understood.
Rebecca R Helm, Casey W Dunn
doaj +1 more source
Evidence of Cnidarians sensitivity to sound after exposure to low frequency underwater sources [PDF]
, 2016 Jellyfishes represent a group of species that play an important role in oceans, particularly as a food source for different taxa and as a predator of fish larvae and planktonic prey.
André, Michel +5 more
core +1 more source