Cassiopeia jellyfish, page 7

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Galleries
Underwater Photo

15.9 MEGAPIXEL

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mare, mare, ancora mare!!! View gallery (23 photos)

Cassiopeia jellyfish sent on October 01, 2019 (16:19) by Sergio Bartolomeo. 148 comments, 2632 views.

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, Robertopitt, RobertoTR, Robertozan, 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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Enrico F

sent on January 29, 2020 (18:22) | This comment has been automatically translated (show/hide original)

Great underwater shot!
Congratulations for the photo and the caption really very instructive and interesting!
Henry

Sergio Bartolomeo

sent on January 29, 2020 (18:39) | This comment has been automatically translated (show/hide original)

Hello Enrico, I was very pleased to read your beautiful comment to this image, very pleased also for the appreciation to the caption
Thank you very much for your beautiful words.
A big greeting
Sergio

Gianna.B.

sent on March 08, 2020 (19:15) | This comment has been automatically translated (show/hide original)

Stunning portrait of this beautiful and colorful jellyfish,
very interesting caption,
super congratulations Sergio.
Gianna :-)

Sergio Bartolomeo

sent on March 08, 2020 (23:20) | This comment has been automatically translated (show/hide original)

Hello Gianna
Son happy for your appreciation to this image and its caption.
Thank you very much for your compliments and for your kind comment
A warm greeting
Herst

Andrea Cacciari

sent on April 07, 2020 (14:54) | This comment has been automatically translated (show/hide original)

Beautiful colors
Bellissima photo

Hello
compliments

Sergio Bartolomeo

sent on April 07, 2020 (20:00) | This comment has been automatically translated (show/hide original)

Hello Andrea, gratifying your comment to this shot that I am glad you enjoyed
Thanks very much both for the compliments and for the beautiful words
A warm greeting and still happy birthday
Sergio

LucianoSerra.d

sent on May 20, 2020 (0:02) | This comment has been automatically translated (show/hide original)

I have seen all this Your Gallery and found the photographs contained very pleasant and well made... Congratulations... 8-)

Sergio Bartolomeo

sent on May 20, 2020 (0:09) | This comment has been automatically translated (show/hide original)

Thank you Luciano, I love the sea, I like to tell it in my shots.
Son very glad you enjoyed this sunrise on the Strait of Messina
A greeting
Sergio

Assox

sent on May 25, 2020 (18:11) | This comment has been automatically translated (show/hide original)

Beautiful colors, photos and captions.
A hug Peter

Sergio Bartolomeo

sent on May 27, 2020 (21:13) | This comment has been automatically translated (show/hide original)

Thank you Peter.
Thank you, glad you enjoyed this jellyfish: beautiful and harmless, even if it doesn't look like it.
A cherished greeting
Herst

Guerragaet

sent on July 02, 2020 (22:10) | This comment has been automatically translated (show/hide original)

Very beautiful in its colors :-o Congratulations!
Hello
Gaet.

Sergio Bartolomeo

sent on July 02, 2020 (23:00) | This comment has been automatically translated (show/hide original)

Hello Gaet.
I'm delighted for your appreciation of this marine shot.
Procede slow and allowed herself to be photographed as a good model.
Then, at home, on the PC monitor: the hidden fish's sorpesa.
I thank you very much for your words
A warm greeting
Herst

Alejandro Colombini

sent on July 28, 2020 (19:07) | This comment has been automatically translated (show/hide original)

Beautiful and colorful catch, very beautiful also the caption.

Sergio Bartolomeo

sent on July 28, 2020 (19:13) | This comment has been automatically translated (show/hide original)

Thank you Alejandro for paying attention to this shot that this season returns to current events.
I also remember your appreciation of the caption
A warm greeting
Herst

Diodato Campagna

sent on February 14, 2021 (23:44) | This comment has been automatically translated (show/hide original)

Amazing shot!
Compliments

Sergio Bartolomeo

sent on February 15, 2021 (0:06) | This comment has been automatically translated (show/hide original)

Thank you Diodato for your beautiful words and compliments
Son pleased for your appreciation of this shot
A dear greeting
Sergio

Stefania Saffioti

sent on April 24, 2021 (13:03) | This comment has been automatically translated (show/hide original)

A really beautiful picture, congratulations!
Cyo, good weekend
Stefania :-)

Sergio Bartolomeo

sent on April 24, 2021 (15:42) | This comment has been automatically translated (show/hide original)

Thank you Stefania for congratulations and nice comment on this image, thank you very much
A dear greeting
Sergio

Sasso

sent on April 24, 2021 (21:56) | This comment has been automatically translated (show/hide original)

Beautiful this jellyfish !!!
Great colors and beautiful composition !
Ciao Sasso ;-)

Sergio Bartolomeo

sent on April 26, 2021 (19:27) | This comment has been automatically translated (show/hide original)

Hi Sasso, I am particularly pleased with your opinion on this underwater photo, I am pleased you enjoyed it
I thank you very much
A great greeting
Sergio

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