Results 41 to 50 of about 5,400 (239)

Evidence of Cnidarians sensitivity to sound after exposure to low frequency underwater sources [PDF]

open access: yes, 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

New record for the distribution of the colonial hydroid Cordylophora caspia (Pallas, 1771) (Cnidaria: Hydrozoa) in Argentina [PDF]

open access: yes, 2015
Cordylophora caspia is a colonial, athecate hydroid inhabiting both in freshwater and brackish habitats. Its global distribution is in part due to its ability to tolerate a wide range of salinity.
Acuña, Fabian Horacio   +2 more
core   +3 more sources

Crude venom from nematocysts of Pelagia noctiluca (Cnidaria: Scyphozoa) elicits a sodium conductance in the plasma membrane of mammalian cells

open access: yesScientific Reports, 2017
Cnidarians may negatively impact human activities and public health but concomitantly their venom represents a rich source of bioactive substances. Pelagia noctiluca is the most venomous and abundant jellyfish of the Mediterranean Sea and possesses a ...
R. Morabito   +8 more
semanticscholar   +1 more source

Venom system variation and the division of labor in the colonial hydrozoan Hydractinia symbiolongicarpus

open access: yesToxicon: X, 2022
Cnidarians (jellyfish, hydroids, sea anemones, and corals) possess a unique method for venom production, maintenance, and deployment through a decentralized system composed of different types of venom-filled stinging structures called nematocysts.
Anna M.L. Klompen   +2 more
doaj   +1 more source

Sequestration of nematocysts by divergent cnidarian predators: mechanism, function, and evolution

open access: yes, 2017
Animals have evolved diverse mechanisms to protect themselves from predators. Although such defenses are typically generated endogenously, some species have evolved the ability to acquire defenses by sequestering defensive chemicals or structures from ...
Jessica A. Goodheart, Alexandra E. Bely
semanticscholar   +1 more source

Acontia, a Specialised Defensive Structure, Has Low Venom Complexity in Calliactis polypus

open access: yesToxins, 2023
Phylum Cnidaria represents a unique group among venomous taxa, with its delivery system organised as individual organelles, known as nematocysts, heterogeneously distributed across morphological structures rather than packaged as a specialised organ ...
Hayden L. Smith   +4 more
doaj   +1 more source

Haemolytic activity and characterization of nematocyst venom from Pelagia noctiluca (Cnidaria: Scyphozoa) [PDF]

open access: yes, 2013
We investigated the haemolytic capacity of the crude venom extracted from isolated nematocysts of Pelagia noctiluca (Cnidaria: Scyphozoa), and evidenced the proteic fractions responsible for this activity.
BENENATI, Gigliola   +9 more
core   +1 more source

Risky foraging by Ring-billed Gulls (Larus delawarensis)

open access: yesJournal of Field Ornithology, 2022
Organisms escape consumers using a variety of behaviors and structural or physiological defenses (e.g., toxins and irritants). Portuguese men o’ war (Physalia physalis) rely on nematocysts to immobilize or kill their prey, chiefly fish, but the ...
Ryan Call, Dave Shutler
doaj  

A comparative study of populations of Ectopleura crocea and Ectopleura ralphi (Hydrozoa, Tubulariidae) from the Southwestern Atlantic Ocean [PDF]

open access: yes, 2014
Ectopleura crocea (L. Agassiz, 1862) and Ectopleura ralphi (Bale, 1884) are two of the nominal tubulariid species re-corded for the Southwestern Atlantic Ocean (SWAO), presumably with wide but disjunct geographical ranges and similar morphologies.
Ale, Ezequiel   +2 more
core   +1 more source

The Mauve Stinger Pelagia noctiluca (Forsskål, 1775). Distribution, Ecology, Toxicity and Epidemiology of Stings.

open access: yesMarine Drugs, 2008
The toxicity of Cnidaria is a subject of concern due to its influence on humans. In particular, jellyfish blooms can highly affect human economical activities, such as bathing, fishery, tourism, etc., as well as the public health.
Luigi Pane   +2 more
doaj   +1 more source

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