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  1. Galleries
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  3. Underwater Photo
  4. » Cassiopeia jellyfish

 
Cassiopeia jellyfish...

mare, mare, ancora mare!!!

View gallery (23 photos)

Cassiopeia jellyfish sent on October 01, 2019 (16:19) by Sergio Bartolomeo. 148 comments, 3597 views. [retina]

1/250 f/4.2, ISO 125, hand held. Messina, Italy.

Cambiamenti climatici, pesca intensiva, impoverimento delle specie ittiche che si nutrono di plancton: sono tanti i fattori che hanno spinto la bellissima, quanto innocua, medusa Cassiopea Mediterranea (Cotylorhiza tuberculata) a comparire nei nostri mari. Sono stati numerosi gli avvistamenti, specie nell'ultimo periodo, di questo splendido esemplare nelle nostre acque, prevalentemente tra il messinese e le isole Eolie. Questa specie, che raggiunge i 30 cm di diametro, presenta un caratteristico ombrello a forma di disco bianco, con una gobba rotonda e gialla al centro (sembra un uovo all'occhio di bue). Il margine è tipicamente frastagliato, di colore giallo o talvolta verdastro per la presenza di zooxantelle: alghe unicellulari che assorbono il diossido di carbonio liberato dall'ospite e che, in cambio, gli forniscono particolari sostanze nutrienti. Questa medusa vive a pochi centimetri di profondità, circondata da piccoli pesci che usano i suoi tentacoli per trovare il nutrimento necessario. Tipica la presenza di piccoli avannotti. Nonostante le dimensioni, impressionanti rispetto alle classiche meduse, la Cassiopea non è urticante e, vista la sua importanza ecologica (fungono da filtro per l'acqua di mare), gli esperti consigliano vivamente di non catturarle! -------Tutte le foto contenute in queste gallerie sono copyright Sergio Bartolomeo e non possono essere utilizzate in alcuna forma senza il consenso dell'autore.



View High Resolution 15.9 MP  

118 persons like it: Agata Arezzo, Albertopantellini, Albieri Sergio, Alcenero, Alejandro Colombini, Alessandro Traverso, Alessandro57, Alpha_A5100, Andnol, Andrea Cacciari, Angelo959, Anouk, Antonio Dell'Aquila, Aringhe Blu, Arvina, Assox, Bal, Barbara Gatti Cocci, Canonitalia, Carlo Girola, Carlo Marchese, Caterina Bruzzone, Chiaravet, Claudio Cortesi, Claudio Cozzani, Claudio Ricci, Coradocon, Cris74, Darcy, Dede66, Delphinus, Diego96, Diodato Campagna, Eddie6630, Elfiche, Enrico F, Eus, Fabrizio Pocci, Fabrizios53, Federico_28, Fggalassi, Fiorenzo Sagoni, Franco Buffalmano, Fulvio Gioria, Gabbia65, Gabribocc, Gabriele Cavagna, Gast1, Germano58, Gianna.B., Ginno, Giorgio Occhipinti, Gios, Giovanni e Davide, Giulietta Cazzaro, Goodcaptain, Guerragaet, Guglielmo Toscano, Ilfruttodelpeccato, Immacolata Puli, Italo Carè, Jancuia, Jeant, Jerry Vacchieri, Jo., Lamahd, Lastpeanut, Latino Rosario, LucianoSerra.d, Lucio Pegoraro, Luigi Mossali, Lully, Magda69, Mamaroby, Marco Biancalani, Marco Neri, Marco Riccardi, MariangelaT, Marilù 04, Mario_61, Mau.., Maurizio Trifilidis, Mauro Monesi, Mirc, NadiaB, Nightflier, Nikp, Palmieri Raimondo, Paogar, Paolo P, Peppe Cancellieri, Phostech, PietroBettega, Pmax, Rendy L., Renzo Fermo, Roberto Carrano, Roberto Giancristoforo, RobertoTR, Robertozan, Roberty, Rodema, Ronda, Rosario Cafiso, Sasso, Savino P., Sergio 67, Simobati, Stefania Saffioti, Supercecc56, Susy Dan, Testarossa57, Valerio Pezzi, Valeriot, Vasile Gori, Vincenzo Sciumè, Werner, Zipablo




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avatarsenior
sent on October 15, 2019 (14:57) | This comment has been automatically translated (show/hide original)

Congratulations, I imagined the difficulties but not so many actually... Really nice this kind of photography!
Thank you for the explanation!
A soon
Darcy

avatarsenior
sent on October 15, 2019 (16:30) | This comment has been translated

:-P;-)

user28555
avatar
sent on October 19, 2019 (16:06) | This comment has been automatically translated (show/hide original)

A naturalistic image "underwater" as gorgeous as a magnificent flower of the sea ;-) : very good and many compliments Sergio, I really like.
A dear greeting, Claudius :-P

avatarsenior
sent on October 19, 2019 (19:35) | This comment has been automatically translated (show/hide original)

Thank you Claudio.
I'm just happy you liked this picture.
You're right, the shapes of this jellyfish are just like those of a flower.
Thank you so much for compliments and commentary.
Hello
Sergio

avatarsenior
sent on October 21, 2019 (9:48) | This comment has been automatically translated (show/hide original)

Great caption with a great photo. Fantastic colors. Congratulations on the beautiful realization.
Salutone Fabrizio :-P ;-) :-P

avatarsenior
sent on October 21, 2019 (14:00) | This comment has been automatically translated (show/hide original)

Hello Fabrizio, I am pleased for your appreciation to this image and its caption. ;-)
Always nice.
A friendly greeting
Hello
Sergio

avatarsupporter
sent on October 21, 2019 (18:47) | This comment has been automatically translated (show/hide original)

Beautiful shot and very interesting caption
Congratulations
Hello
Walter

avatarsenior
sent on October 21, 2019 (19:03) | This comment has been automatically translated (show/hide original)

Hello Walter, thank you very much for the compliments and your beautiful comment on this underwater image.
Thank you so much and good evening
Sergio

avatarsenior
sent on October 31, 2019 (11:37) | This comment has been translated

Marvelous

avatarsenior
sent on October 31, 2019 (18:05) | This comment has been automatically translated (show/hide original)

Thank you very much Jancuia, I am very happy for your passage and appreciation to this image.
Happy Holidays.
Sergio

user62049
avatar
sent on November 01, 2019 (0:01) | This comment has been automatically translated (show/hide original)

Beautiful specimen, its colors are beautiful.
Excellent shot, congratulations
Interesting caption
A marco greeting

avatarsenior
sent on November 01, 2019 (0:40) | This comment has been automatically translated (show/hide original)

Hello Marco. I've been lucky, in fact I've seen other damaged specimens.
Photographd with clear water and was not at great depth, so the colors are his. The cherry is the little fish hidden in its coils.
Thank you so much for the compliments and your nice comment.
Hello
Sergio

avatarsenior
sent on November 04, 2019 (4:41) | This comment has been automatically translated (show/hide original)


A chromatic explosion.
congratulations and a greeting.
mt

avatarsenior
sent on November 04, 2019 (7:51) | This comment has been automatically translated (show/hide original)

Hello Maurizio, I'm just glad for your appreciation to this image.
Thank you so much for your words and compliments.
Good week :-P
Sergio

avatarsupporter
sent on November 10, 2019 (22:52) | This comment has been automatically translated (show/hide original)

Taken from the beautiful colors, particular the moment caught with the little fish peeping ... Congratulations Sergio.
Hello, Rod ;-)

avatarsenior
sent on November 11, 2019 (9:44) | This comment has been automatically translated (show/hide original)

Hi Rod
Happy you enjoyed this shot.
The little fish was a surprise in the monitor vision.
On the small camera display, I hadn't noticed.
Take multiple shots, the choice fell on this, precisely because of the visibility of the small fish.
Thank you so much for your passage and nice comment left
Good week
Sergio

avatarsupporter
sent on November 23, 2019 (18:48) | This comment has been automatically translated (show/hide original)

thousand and seven compliments...........................................................................................................................................................................................................................................................................................................................

avatarsenior
sent on November 25, 2019 (1:07) | This comment has been automatically translated (show/hide original)

Thank you so much and seven times, Raymond for your appreciation to this image, I'm glad you enjoyed it.
A dear greeting :-P
Sergio

avatarsenior
sent on January 09, 2020 (20:51) | This comment has been automatically translated (show/hide original)

A little marine spaceship, beautiful shot! My most sincere congratulations Sergio.

avatarsenior
sent on January 09, 2020 (23:34) | This comment has been automatically translated (show/hide original)

Hello Barbara, thank you very much for your very welcome compliments and for the beautiful comment to this underwater shot.
I like the comparison with "a small spaceship" :-P
A dear greeting
Sergio


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