Lmst

#NewSpecies!
New deep sea coral from #okinawaisland just surfaced:

Hemicorallium ryukyuense

Treatment: https://treatment.plazi.org/id/713F8790-FFB0-FFD6-95DD-FD87812BF7BA
Publication: https://doi.org/10.12782/specdiv.30.193
#SpeciesDiversity #HemicoralliumRyukyuense

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #cnidaria #corals #deepsea

Mediterranean Beadlet Anemone (Actinia mediterranea)

#Anemone #SeaAnemone #Actiniaria #CCBYSA #MarineLife #Sealife #ArtWithOpenSource #Darktable #Cnidaria #Animals #Animal #AnimalPhotography #Nature #NaturePhotography #Photo #Photography

A photo of a beadlet anemone, part of which is out of the water.

Snakelocks Anemone (Anemonia viridis)

#Anemone #SeaAnemone #Actiniaria #CCBYSA #MarineLife #Sealife #ArtWithOpenSource #Darktable #Cnidaria #Animals #Animal #AnimalPhotography #Nature #NaturePhotography #Photo #Photography

A photo of a snakelocks anemone under shallow water.

Who wants my jellyfish? I'm not sellyfish - Ogden Nash #BlueSkyMonday #JuneSea #sand My entry in the "smallest number of likes" competition. #photography #mobilephotography #iphone #cnidaria #jellyfish #beachcombing #dogwalking #EastCoastKin

A small, beautiful blue jellyfish washed up on the beach.

Mauve Stinger (Pelagia noctiluca)

#Jellyfish #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #SeaLife #MarineLife #Animal #Animals #AnimalPhotography #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photo #Photography

A photo of a mauve stinger washed up on the sand.

`By generating localized Chordin sources in the Chordin morphant background, we showed that mobile Chordin is necessary and sufficient to establish a peak of BMP signaling opposite to Chordin source. These results provide evidence for BMP shuttling in a bilaterally symmetric cnidarian and suggest that BMP shuttling may have been functional in the potentially bilaterally symmetric cnidarian-bilaterian ancestor.`

https://www.science.org/doi/10.1126/sciadv.adu6347

#evolution #zoology #cnidaria #bilateria

WARNING look away if you don't like stinging things... Physalia, or the bluebottle, a fairly common sight on beaches after a strong wind has blown them ashore. They're not a single organism, but a #community of cooperating zoöids. #JuneSea #photography #macro #cnidaria #beach #EastCoastKin

A beached bluebottle, blown ashore by the wind. The gas-filled bladder is obvious, and also the hanging tentacle with stinging nematocysts. Although unpleasant to encounter if you're stung, it's quite pretty otherwise.

#Vélelle
Velella velella

20 avril 2017 - Île de Port-Cros, Hyères, France

#Cnidaria > #Hydrozoa > #Anthoathecata > #Porpitidae

Velella velella est une espèce de cnidaire pélagique. Elle est souvent appelée « vélelle à voile » ou « by-the-wind sailor » en anglais.

Il s'agit d'une colonie de Polypes, généralement de moins de 10 cm de long, qui se présente sous la forme d’un flotteur chitineux ovale en forme d’anneau et composé de chambres remplies d’air qui lui permettent de flotter à la surface de l’océan. Surmontée d’une voile triangulaire translucide haute de 3 cm maximum, la colonie se déplace principalement grâce au vent, sa voile étant orientée en biais pour capter le vent et propulser l’organisme, sans capacité de mouvement autonome.
La colonie est composée de polypes spécialisés : nourriciers, reproducteurs, défensifs.

Cette espèce est présente dans tous les océans du globe, notamment dans les zones tropicales et subtropicales, y compris en Méditerranée. Elle peut également remonter le long des côtes, notamment en Europe.
On la trouve fréquemment échouée en masse sur les plages, notamment après des tempêtes, au printemps et en début d’été.
La colonie se nourrit de plancton et de petits organismes marins, capturés à l’aide de tentacules urticants.

Dangerosité : Généralement considérée comme sans danger pour l’homme, ses tentacules ne sont pas assez longs pour blesser, bien que certaines personnes sensibles puissent réagir à ses piqûres.

Autres noms :
« barquette de la Saint-Jean » (Biarritz)
« méduse-voilette »
« velero » (espagnol)
« Jack-sail-by-the-wind » (anglais)

#wildlife #nature #naturephotography #biodiversity #ecosystem #écosystème
#smartphonephotography #hydrozoa #polype

A mushroom coral - Fungiidae
#gili #giliislands #lombok #diving #scuba #trawangan #giliair #ocean #sealife #marinelife #reef #mushroomcoral #Fungiidae #mushroom #Cnidaria

By-the-wind Sailors (Velella velella)

#ByTheWindSailors #VelellaVelella #Hydrozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #SeaLife #MarineLife #Animals #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of thousands of dead by-the-wind sailors piled up in the water at the shore of a bay.

A photo of thousands of dead by-the-wind sailors.

A photo of thousands of dead by-the-wind sailors with a loose outline of footprint in them.

(04 Apr) Thousands of strange, blobby creatures are washing up on California beaches

What are the blue blobs washing up on California beaches? What to know about these strange sea creatures.

https://s.faithcollapsing.com/h52zc
Archive: ais: https://archive.md/wip/7mSUy ia: https://s.faithcollapsing.com/9w527

#animals #cnidaria

A Violet Snail (Janthina sp.) preying on a By-the-wind Sailor (Velella velella)

#VioletSnail #Janthina #ByTheWindSailor #VelellaVelella #Hydrozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #ByTheWindSailors #SeaLife #MarineLife #Snail #Snails #Gastropod #Gastropods #Gastropoda #Mollusca #Mollusc #Molluscs #Animal #Animals #AnimalPhotography #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of a small pale purple snail on top of a by-the-wind-sailor on sand.

By-the-wind Sailor (Velella velella)

#ByTheWindSailor #VelellaVelella #Hydrozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #ByTheWindSailors #SeaLife #MarineLife #Animal #Animals #AnimalPhotography #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of a by-the-wind sailor on sand.

Mauve Stinger (Pelagia noctiluca)

#MauveStinger #Pelagia #Jellyfish #Scyphozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #PelagiaNoctiluca #Jelly #Jellies #Animal #Animals #SeaLife #MarineLife #AnimalPhotography #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of a mauve stinger amongst gut weed.

By-the-wind Sailors (Velella velella)

#ByTheWindSailors #VelellaVelella #Hydrozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #Animals #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of a small by-the-wind-sailor floating on the surface of a tide pool.

By-the-wind Sailors (Velella velella)

#ByTheWindSailors #VelellaVelella #Hydrozoa #ArtWithOpenSource #Darktable #CCBYSA #Cnidaria #Animals #Wildlife #WildlifePhotography #Nature #NaturePhotography #Photography

A photo of By-the-wind Sailors of various sizes on sand.

Jellyfish …

#Jellyfish #MarineBiology #Liquid #MarineInvertebrates #Underwater #Cnidaria #Bioluminescence #Aquarium #Science #Fish

#Cnidaria are a very old group of animals in terms of #evolutionary #biology. The last common stem species, which they share with all further derived animals, the Bilateria, was the first to have really differentiated tissue. Solitary species and especially Coral colonies create #speciesrich ecosystems and are sensitive to #globalwarming. Therefore, efforts to achieve greater #climateneutrality are important.
© #StefanFWirth 2025

Une fiche générique pour les #méduses Aurélia spp., si difficiles à discriminer à l’œil nu, vient de paraître.

MÜLLER Yves, MARAN Vincent, BONNET Delphine, SITTLER Alain-Pierre in : #DORIS, 30/12/2024 :
Aurelia spp. Lamarck, 1816, https://doris.ffessm.fr/ref/specie/129

#biodiversite #Cnidaria #Scyphozoa #cosmopolite #biodiversity #Discomedusae #ephyrule #planula #strobilation #BioSubaquatique