Atmosphera

Sergio Discepolo Underwater Photographer, Filmaker, Reporter Freelance

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Nudibranco (Hypselodoris apolegma) Stretto di Lembeh Indonesia

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Buone Feste

Christmas Tree Worm (Spirobranchus giganteus) Stretto di Lembeh 2018

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Nudibranco (Goniobranchus kuniei) Stretto di Lembeh 2018

Nikon coolpix AW 130 f/8.2 1/80 sec. ISO 125 internal flash

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The Wikipedia photo contest around nature and science

Durante i mesi di novembre e dicembre 2017 si svolgerà il primo concorso mondiale di fotografia scientifica organizzato dagli utenti delle piattaforme Wikimedia, Wiki Science Competition http://www.wikisciencecompetition.org/.

La fase di caricamento delle immagini si svolgerà in Italia dal 15 novembre fino al 15 dicembre 2017, mentre per alcuni paesi è già iniziata dal primo di novembre. https://commons.wikimedia.org/wiki/Commons:Wiki_Science_Competition_2017_in_Italy

Wiki Science Competition punta a divenire il più grande concorso nel suo genere forse già dalla prima edizione. Già la precedente edizione nel 2015, limitata alla sola Europa (link), ha visto una buona partecipazione sfiorando le 10.000 immagini caricate. All’epoca solo otto paesi dell’area est-europea presentarono una giuria nazionale, mentre gli altri parteciparono direttamente al concorso continentale. Quest’anno si aggiungono con giurie nazionali invece anche Italia, Spagna, Stati Uniti, Brasile, Cile, Australia e Arabia Saudita.

L'Italia quest'anno parteciperà a Wiki Science Competition 2017 (WSC) per la prima volta come paese con una propria giuria nazionale, grazie al supporto organizzativo di VIS - Virtual Immersion in Science, la piattaforma multidisciplinare di outreach e divulgazione scientifica della Scuola Normale Superiore di Pisa.

Avendo io in passato collaborato alla compilazione delle pagine wiki sul volo dopo l'immersione e sul forame ovale pervio (PFO), sono stato informato di questo contest direttamente da  Alessandro Marchetti, uno degli organizzatori del concorso, che ha contribuito alla selezione di buona parte delle giurie nazionali e internazionali.

I giurati italiani includono i fotografi Alberto Magliozzi e Alberto Terrile, la divulgatrice Annalisa Plaitano e vari accademici anche attivi sulle piattaforme wikimedia, fra cui la biologa marina Mascha Stroobant.

 https://commons.wikimedia.org/wiki/Commons:Wiki_Science_Competition_2017_in_Italy#Giuria_italiana

 Le giurie nazionali inizieranno la valutazione appena chiuso il caricamento, quindi alcune già dai primi giorni di dicembre, con la previsione di nominare i vincitori nazionali verso gennaio 2018.

In bocca al lupo!"

Una medusa dei mari artici, CC BY-4.0 Erwan AMICE Wikimedia Commons 2017

https://commons.wikimedia.org/wiki/File:Ice_planet_and_antarctic_jellyfish.jpg

L'ornitologo Tarvo Wlaker al lavoro nel mar Baltico, presso l'isola di Kihnu   CC BY-SA 3.0 Mati Kosa Wikimedia Commons 2013

https://commons.wikimedia.org/wiki/File:Lojanguaegsel_merelinnustiku_loendusel.jpg

Tunicati

Cerianthus filiformis

Hippocampus hystrixs 

Heterocentrotus mammillato 

Pesce cocchiere (Heniocus  intermedius)

Xenia Umbellata

Pesci grugnitori (Plectorhynchus gaterinus)

Pterois antennata

Chamaeleo furcifer

Lemure fulvo

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The Wikipedia photo contest around nature and science

http://www.wikisciencecompetition.org/

https://commons.wikimedia.org/wiki/Commons:Wiki_Science_Competition_2017_in_Italy

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Cavallucci ed altre meraviglie hd

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Spugne e coralli 

Nosy Be Madagascar

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Flabellina affinis Nosy Be

Nikon coolpix AW130: f/8.2 1/60 sec. iso 125

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(via https://www.youtube.com/watch?v=rqWrbOJXJPM)

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Cheese!!!

http://sergiodiscepolo.altervista.org/

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Trigone maculato (Taeniura lymma) Nosy Be Madagascar

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Pesce pagliaccio (Amphiprion  bicinctus)

Nosy Be, Madagascar

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Octopus cyanea, also known as the big blue octopus, day octopus and Cyane's octopus, is an octopus in the family Octopodidae. It occurs in both the Pacific and Indian Oceans, from Hawaii to the eastern coast of Africa.

O. cyanea grows to 16 cm in mantle length with arms to at least 80 cm. 

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Taenianotus triacanthus is a species of marine fish which is the sole member of the genusTaenianotus. It is commonly known as the leaf scorpionfish or paperfish.

Taenianotus triacanthus is widespread from east African coast and the Red Sea to the tropical Indo-Pacific, up to the Galapagos Islands, the Ryukyu Islands, Hawaii and the coast of New South Wales. This species can be found in tropical waters on coral reefs, from shallow water to a depth of 130 meters.

The leaf scorpionfish is about 10 cm (4 in) long. The color of this fish varies from green, red, pink, brown, ocher and yellowish to a ghostly white. The fish is almost as flat as a leaf and resembles a leaf in many other ways. The head and mouth are large. Through their eyes there is a dark line. The large dorsal fin starts just behind the eyes and has 12 spines and 8 to 11 soft rays. The venom of the leaf fish is considerably weaker than that of the lionfish and stonefish. The skin often has blotches that enhance a camouflage effect. This fish has appendages around the mouth, and sometimes real algae and hydroids grow on its skin.

This fish molts every 10 to 14 days, and can change colors after the molt.

Notes from Wikipedia.

For more details: http://sergiodiscepolo.altervista.org/scorfano-foglia-taenianotus-triacanthus-leaf-scorpionfish/

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Commerson's frogfish or the giant frogfish, Antennarius commerson, is a marine fish belonging to the family Antennariidae.

Commerson's frogfish grows up to 38 cm (15 in). Like other members of its family, it has a globular, extensible body. The soft skin is covered with small dermal spinules. Its skin is partially covered with a few small, wartlike protuberances, some variably shaped, scab-like blotches, and a few, small eye spots (ocelli) reminiscent of the holes in sponges. Its large mouth is prognathous, allowing it to consume prey as large as itself. Their coloration is extremely variable, as they tend to match their environments. Frogfish can change their coloration in a few weeks. However, the dominant coloration goes from grey to black, passing through a whole range of related hues, such as cream, pink, yellow, red, and brown, and also usually with circular eye spots or blotches that are darker than the background. 

Antennarius commerson lives in the tropical and subtropical waters from the Indian Ocean to the eastern coasts of the Pacific Ocean. It is found in lagoons and sheltered rocky and coral reefs. They are usually associated with big sponges, on underwater ropes, on jetty pillars, or any structures down to 70 m (230 ft) deep, with an average occurrence at 20 m (66 ft) deep.

for more info: http://sergiodiscepolo.altervista.org/pesce-rana-gigante-antennarius-commersonii-giant-frogfish/

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Aquatilis Expedition

#Aquatilis is on a quest to find the weirdest creatures that lurk in the deep. Have a look.

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The Pterois radiata belongs to the family Scorpaenidae. 

The specimens of this species are also called scorpionfis because of the option to emit potentially lethal poisons by special poison glands in the base of the harsh rays of the dorsal fin.

They lives in the reef and coral reefs in the Indo-Pacific and Red Sea, and can reach the size of more than 20 cm. 

It feeds mainly on small fish and crustaceans even of large size, such as shrimp, caught lurking in the marine flora or under the corals that come from the bottom. 

Like all other species of the genus Pterois, P. radiata also has poisonous spines on the dorsal fin and pectoral. 

The first aid treatment after an accidental puncture is the immersion of the affected part in warm water (about 50 ° C), because it reduces pain by inactivating the toxin, which is heat-labile, but then you have to undergo a medical examination to prevent any complications.