Purple Octopus - using citizen science to discover marine interactions
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Chelonia mydas

(Linnaeus, 1758)


John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 22/09/2013 Sony DSC-TX30 1/250 f/3,5 4,7mm Iso 200

Claudia Weber-Gebert new friend ??? <3

Message posted on Scubashooters.net on 23 Sep 2013
Tony Shih "Here's looking at you kid" - Green Sea Turtle (Chelonia mydas) - Sipadan, Malaysia. Nikonos RS, Nikonos 13mm + 2x extension, twin S/S YS-250Pro, Velvia 100

Daniel Wolf Great.

Message posted on UWphotographers on 08 Nov 2013
John Paul Connor Chelonia Mydas N'Gouja Mayotte 01/10/2013 Sony DSC-TX30 1/400 f/3,5 4,7mm Iso 80

Linda Pelletier Driscoll love turtles!

John Paul Connor Thank you Linda

Message posted on UWphotographers on 02 Nov 2013
John Paul Connor Chelonia Mydas N'Gouja Mayotte 28/09/2013 Sony DSC-TX30 1/400 f/3,5 4,7mm Iso 80

Juergen Kirchmann Hahaha :-)

Vito Giannecchini Bella!

John Paul Connor Grazie Vito

Message posted on UWphotographers on 03 Oct 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30 1/250 f/3,5 4,7mm Iso 80

Sara Tome una belleza¡¡¡¡

John Paul Connor Gracias Sara

Message posted on UWphotographers on 27 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30 1/200 f/3,5 4,7mm Iso 80

Message posted on UWphotographers on 26 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 22/09/2013 Sony DSC-TX30 1/400 f/4,5 4,7mm Iso 80

Claudia Weber-Gebert <3

Message posted on UWphotographers on 24 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 20/09/2013 Sony DSC-TX30 1/400 f/4,5 4,7mm Iso 80

Claudia Weber-Gebert <3

Ron Silver :-D

John Paul Connor Thanks Claudia et Ron

Message posted on UWphotographers on 22 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30 1/250 f/3,5 4,7mm Iso 80

Message posted on UWphotographers on 19 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30 1/80 f/3,5 4,7mm Iso 80

Message posted on UWphotographers on 19 Sep 2013
José Martín Piñatel Chelonia mydas (Green turtle)

Message posted on UWphotographers on 13 Sep 2013
Scubashooters Dot Net From scubashooters.net Editor's Choice Flowing with the current Upload Date: April 17 2013 Scientific Name: Sphyma lewini and Chelonia Mydas Common Name: Hammerhead Shark and green Turtle Location: Galapagos Diving Center: Caribbean Reef Lens: Canon …

Message posted on Scubashooters.net on 04 May 2013
Tony Shih "Here's looking at you kid" - Green Sea Turtle (Chelonia mydas) - Sipadan, Malaysia. Nikonos RS, Nikonos 13mm + 2x extension, twin S/S YS-250Pro, Velvia 100

Message posted on Wetpixel Underwater Photography on 08 Nov 2013
Andrey Nekrasov Green sea turtle (Chelonia mydas). Red sea

Andréa Serrano Que máximo

Everett Turner love eyes, very cool

Daniela Balint Simply beautiful !!!You can see the deep sea and the stars in its eyes ...great shot!

Giorgio Cavallaro Very nice!

Annette Graves Absolutely amazing shot! :)

Claudia Weber-Gebert <3

Lisa Kelly So clear. Very nice.

Message posted on UWphotographers on 25 May 2013
Shin Arunrugstichai Green Sea Turtle (Chelonia mydas) / Shark Bay, Koh Tao, Thailand / Canon Powershot G11

Message posted on Wetpixel Underwater Photography on 04 Feb 2013
Gerardo Aizpuru Green Sea Turtle / Chelonia mydas Photo take at -15 m near a coral reef on an algae bed in Puerto Morelos, México

Message posted on UWphotographers on 02 Oct 2012
John Paul Connor Tortue Franche Chelonia Mydas N'Gouja Mayotte 09/10/2013 Sony DSC-TX30

Stuart Pearce Very nice :)

John Paul Connor Thank you Stuart

Annie Bodar magnifique merci

John Paul Connor Merci Annie

Gaglione Tiziana Tres jolie.....vraiment!

John Paul Connor Grazie Gaglione Kisses

Message posted on The Global Diving Community on 09 Nov 2013
John Paul Connor Chelonia Mydas N'Gouja Mayotte 01/10/2013 Sony DSC-TX30

Stuart Pearce Beauty :)

John Paul Connor Thank you Stuart

Sara Tome hermosa foto ,an ocean of kises for you

John Paul Connor Gracias Sara Kisses

Ernst Andres <3 <3 <3

Message posted on The Global Diving Community on 02 Nov 2013
Jade Giada Doe Green Tourtle with remora, Chelonia mydas with Echenesis naucrates , Marsa Abu Dabbab, Marsa Alam, Egypt, Red Sea - photo by Cristian Umili . It's a wUNDERful world !

Message posted on UWphotographers on 06 Jun 2012
John Paul Connor Tortue Franche Chelonia Mydas N'Gouja Mayotte 09/10/2013 Sony DSC-TX30

Claudia Weber-Gebert <3

Stuart Pearce Very nice shot :)

John Paul Connor Thank you Claudia et Stuart

Galina Maslova Very nice

John Paul Connor Thank you Galina

Ernst Andres <3

Sara Tome la hermosa tortuga

Message posted on The Global Diving Community on 17 Oct 2013
John Paul Connor Tortue Franche Chelonia Mydas Mayotte 09/10/2013 Sony DSC-TX30

Claudia Weber-Gebert flying away........ <3

Amberjoy Rich When I see such photos, I feel like I want to be one :)

John Paul Connor Many thanks Claudia et Amberjoy

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Ernst Andres Fly free over mountains and valleys <3

Annie Bodar je l'adore merci du bonheur merci

John Paul Connor Merci Annie Kisses

Message posted on The Global Diving Community on 16 Oct 2013
John Paul Connor Tortue Franche Chelonia Mydas N'Gouja Mayotte 08/10/2013 Sony DSC-TX30

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Ilse Merz LIKE!

John Paul Connor thanks Ilse Kisses

Ernst Andres <3 <3 I´m soooo freeeeee <3 <3

Message posted on The Global Diving Community on 15 Oct 2013
John Paul Connor Tortue Franche Chelonia Mydas N'Gouja Mayotte 08/10/2013 Sony DSC-TX30

Stuart Pearce Very nice shot :)

John Paul Connor Merci beaucoup Stuart

Annie Bodar c'est que du bonheur superbe merci

John Paul Connor Merci Annie océan de bisous

Message posted on The Global Diving Community on 14 Oct 2013
John Paul Connor Tortue franche chelonia mydas N'Gouja Mayotte 08/10/2013 Sony DSC-TX30

Vitaline Marie Rose Pourquoi "Franche"? les autres sont des hypocrites lol ?

Claudia Weber-Gebert :D

Annie Bodar je l'adore merci

John Paul Connor Merci Marie Claudia et Annie

Ernst Andres Tschakkaaaa !!! Well done my dear friend ! (Y)

John Paul Connor Merci beaucoup mon ami Ernst

Ernst Andres Avec une si belle photo toujours heureux :-)

Stuart Pearce Very nice shot :)

Claudia Weber-Gebert yes <3

Message posted on The Global Diving Community on 13 Oct 2013
John Paul Connor Tortue Verte Chelonia Mydas N'GOUJA MAYOTTE 01/10/2013 Sony DSC-TX30

Stuart Pearce Great shot :)

John Paul Connor Many thanks Stuart

Ernst Andres Wonderful :-)

Message posted on The Global Diving Community on 06 Oct 2013
John Paul Connor Tortue Verte Chelonia Mydas N'GOUJA MAYOTTE 01/10/2013 Sony DSC-TX30

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Claudia Weber-Gebert <3

Claudia Weber-Gebert les tortues ont toujour's l'aire d'être sâge...... :)

Ernst Andres Beauty <3

Message posted on The Global Diving Community on 07 Oct 2013
John Paul Connor Chelonia mydas Tortue Verte 01/10/2013 Sony DSC-TX30 N'Gouja Mayotte

Stuart Pearce Beautiful :)

John Paul Connor Merci beaucoup Stuart

Ernst Andres <3 Wonderful creature <3

John Paul Connor Many thanks Ernst

Ernst Andres You´re welcome my friend :-)

Sara Tome es hermosa y tierna por cualquier angulo mque se la mire

John Paul Connor Gracias Sara Kisses

Message posted on The Global Diving Community on 04 Oct 2013
John Paul Connor Chelonia Mydas N'Gouja Mayotte 28/09/2013 Sony DSC-TX30

Mark Springs Great photo

John Paul Connor Thank you Mark

Tom Hobock The turtle prayer we can save them,will you help???

Sylvie Lalane cachée!!!!!!!!!!!!!!!!!!!!

Stuart Pearce Beauty :)

John Paul Connor Thank you Stuart

Ron Silver Nice behavioral shot. Green Sea Turtle, Chelonia mydas "bracing" itself on the bottom so it can graze on the seagrass.

Sara Tome parece que esta durmiendo

John Paul Connor Many thanks Ron

Tine Kinn Kvamme Ha ha ha. Awesome :-)

Message posted on The Global Diving Community on 03 Oct 2013
John Paul Connor Chelonia mydas Tortue Verte September 28 2013 Location: N'Gouja Mayotte

Galina Maslova Cool pic

John Paul Connor Thank you Galina

Ernst Andres Great my friend :-)

Stuart Pearce Lovely shot :)

Message posted on The Global Diving Community on 02 Oct 2013
John Paul Connor Chelonia mydas Tortue Verte N'Gouja Mayotte 28/09/2013 Sony DSC-TX30

Ernst Andres <3 <3 <3 I like it

Annie Bodar elle est magnifique que du bonheur merci

Stuart Pearce Beautiful :)

Galina Maslova Lovely pic

John Paul Connor Many thanks Annie Galina Stuart et Ernst

Dany Frejaville (y)

Message posted on The Global Diving Community on 29 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30

Stuart Pearce Nice, so graceful :)

Ernst Andres <3 <3 <3

Sara Tome ccuaaaaaanta belleza ,despierta la renura

Message posted on The Global Diving Community on 28 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30

Ernst Andres Awesome situation <3

Message posted on The Global Diving Community on 26 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Henriett Kovács Beautiful! :)

Ernst Andres Beauty <3

Message posted on The Global Diving Community on 26 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 25/09/2013 Sony DSC-TX30

Stuart Pearce Nice :)

John Paul Connor Thank you Stuart

Ernst Andres Aaaaah John my friend. <3 I FEEL WITH YOU <3 !!! (Y)

Message posted on The Global Diving Community on 27 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 22/09/2013 Sony DSC-TX30

Ernst Andres What a BEAUTY <3

John Paul Connor Merci beaucoup mon ami

Claudia Weber-Gebert <3

Message posted on The Global Diving Community on 24 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 22/09/2013 Sony DSC-TX30

Ernst Andres Beauty :-)

Diana Schwab Perfect shot, John Paul!

John Paul Connor Many thanks Diana and Ernst

El Corazón Del Océano tres chanceux mon ami :) belle photo (y)

Dany Frejaville Bonne journée mon frère de <3 bisous John... superbes tes photos c'est un bonheur de chaque jour... Une belle semaine est annoncée en Provence..

Linéa Duret Boulie l eau est vraiment bleue , magnifique

John Paul Connor Merci mon ami El Corazón Del Océano

John Paul Connor Merci Dany ma soeur de ♥ océan de bisous

John Paul Connor Merci Linéa petite soeur océan de bisous

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Message posted on The Global Diving Community on 23 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 20/09/2013 Sony DSC-TX30

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Ilse Merz un autre bel foto ;-)

Ernst Andres Day 4 day better my friend ! <3 I LIKE IT <3

Annie Bodar je l'aime trop merci

John Paul Connor Thank you Ilse Annie et Ernst

Ron Silver :-D

Message posted on The Global Diving Community on 22 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30

Message posted on The Global Diving Community on 20 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30

Annie Bodar j'adore

John Paul Connor Merci bien Annie

Message posted on The Global Diving Community on 20 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30

Stuart Pearce Nice shot :)

John Paul Connor Thank you Stuart

Message posted on The Global Diving Community on 20 Sep 2013
John Paul Connor Tortue verte Chelonia mydas N'Gouja Mayotte 17/09/2013 Sony DSC-TX30

Abbas Elmahalawy رائعه جميلة جدا

John Paul Connor Thank you Abbas

Ernst Andres Very nice <3

John Paul Connor Many thanks my friend Ernst

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Message posted on The Global Diving Community on 19 Sep 2013
John Paul Connor Tortue verte Chelonia mydas et Remora N'Gouja Mayotte 17/09/2013 Sony DSC-TX30

Ernst Andres <3

Stuart Pearce Very nice shot :)

John Paul Connor Many thanks Stuart

Galina Maslova Beautiful pic

Message posted on The Global Diving Community on 18 Sep 2013
Fabiana Farci Sea turtle - Imbricata - Red Sea Night dive - Canon G12

Ron Silver Appears to be a Green sea turtle, Chelonia mydas

Fabiana Farci Yes I confused! It's a Green turtle. :)

Message posted on UWphotographers on 14 Aug 2013
Shane Pinder Photographer and Turtle, Night Dive, Willalaurie Wreck, Nassau

Ron Silver Green Sea Turtle, Chelonia mydas

Jeff Joel nice shot!

Mark Lessard Shane, My favorite night dive spot :) huge trumpet fish, and look for the neck crabs on the stern port side.

Shane Pinder That's right Mark - a lot of trumpetfish and there is now a good size green moray in residence but I didn't manage to get a shot of it on that dive.

Message posted on Wetpixel Underwater Photography on 13 Jul 2013
Hamdi Kassem

Joaquin Muñoz nice

Ron Silver Green Sea Turtle, Chelonia mydas

Hamdi Kassem thank you ..joaquin ...and ron ...

Zeynep Eroğlu So sweety :)) from where? Please write it down :)

Hamdi Kassem nuweiba....egypt ..

Zeynep Eroğlu Thanks Hamdi Kassem :)

Stuart Pearce Very nice shot :)

Mark Springs good photo

Galina Maslova Nice pic

Ernst Andres I like it :-)

Hamdi Kassem thanks all ..

Message posted on The Global Diving Community on 17 Nov 2013
John Paul Connor Chelonia Mydas N'Gouja Mayotte 28/09/2013 Sony DSC-TX30

Mark Springs Great photo

John Paul Connor Thank you Mark

Tom Hobock The turtle prayer we can save them,will you help???

Sylvie Lalane cachée!!!!!!!!!!!!!!!!!!!!

Stuart Pearce Beauty :)

John Paul Connor Thank you Stuart

Ron Silver Nice behavioral shot. Green Sea Turtle, Chelonia mydas "bracing" itself on the bottom so it can graze on the seagrass.

Sara Tome parece que esta durmiendo

John Paul Connor Many thanks Ron

Tine Kinn Kvamme Ha ha ha. Awesome :-)

Message posted on The Global Diving Community on 03 Oct 2013
Mark Springs TURTLE Ribbon Reefs FNQ

Stuart Pearce Very nice shot :)

Ernst Andres YESSSS

Ron Silver Green Sea Turtle, Chelonia mydas

Message posted on The Global Diving Community on 22 Sep 2013
Mark Springs Turtle Great Barrier Reef Port Douglas

Stuart Pearce Beauty :)

Stephen Williams Nice one Mark

John Paul Connor Belle

Ron Silver Classic Green Sea Turtle, Chelonia mydas

Odie Paras Great shot..

Message posted on The Global Diving Community on 11 Sep 2013
Stefan Follows The Wanderer - Oft I alone must Utter my sadness... Green Turltle - Chelonia mydas Andaman Sea, Thailand G10-125-f4-iso100

Stefan Follows Thanks for the likes :)

許曉芸 So beautiful

Message posted on Scubashooters.net on 17 Oct 2013
Leplongeur Réunion Tortue verte -Chelonia mydas (GER) Suppenschildkröte Reunion Iland - 8 Meter

Message posted on Scubashooters.net on 01 Oct 2013
Stefan Follows The Wanderer - Oft I alone must Utter my sadness... Green Turltle - Chelonia mydas Andaman Sea, Thailand G10-125-f4-iso100

Giorgio Cavallaro http://www.uwphotographers.net/2012/05/uwp-stefan-follows.html

Message posted on UWphotographers on 17 Oct 2013
Arial Bauman Green turtle (Chelonia mydas) spotted off of Molasses Reef in Key Largo, Florida. Taken with a GoPro Hero II with red filter.

Ron Silver :-D

Annie Bodar cette photo que du bonheur c'est superbe merci

Message posted on Wetpixel Underwater Photography on 19 Nov 2013
Stefan Follows The Wanderer - Oft I alone must Utter my sadness... Green Turltle - Chelonia mydas Andaman Sea, Thailand G10-125-f4-iso100

Tom Hobock Stefan so very cool shot

Patrik Good Great picture. Strong artefacts around the contour of the turtle though.

Leo Tien Great

Stuart Pearce Beautiful shot :)

Stefan Follows cheers all :))

Ernst Andres <3 I love it <3

Patrik Good ...or more directly: why does the picture come with these artefacts? Stephan Follows? Anything to explain?

Stefan Follows Patrik are you trying to imply anything beyond the fact that between my watermark software and facebook jpegs tend to be lossy? If you have a better technique for compression please share.

Ian Diver Have I gone blind? What artefacts are you referring to? I'm only viewing this on a phone but it looks good to me.

Ian Diver Are you taking about the little specs that could be plankton or a little bit of a dirty sensor otherwise it's as good as any photo on Facebook

Patrik Good Sorry, can't help you. And no, I tried to imply exactly what I said, that there are massive artefacts around the contour of the turtle and that I am interested in an explanation. When you overheard what you and the administrator obviously think is a serious accusation (instead of a nowadays extremely legitimate question) I made it more clear. If you are a serious photographer you should support transparency. I am personally sick of publishing photographers (and competition winning ones too) that feel offended and defensive when confronted with an issue like that and who think it is everyone else's job to prove something they didn't even say. Cheers.

Ian Diver Artefacts is a very vague term and your comment does sound a little like you are accusing Stefan of photoshopping the turtle. What sort of transparency do you want? This is a photo of a turtle with a few shafts of light in the background. On this occasion you did say something accusatory or at least it reads that way to me.

Helen Peatfield Fantastic shot! Love it.

Stefan Follows Patrik lets just stick to transparency then, as you put it. I made some small adjustments in Lightroom. Nothing to fancy just the usual Blacks, Whites, Contrast etc. Then of course I made the image B&W and then made a few further adjustments as before to try and bring out the beams of light. And done. Facebook is infamous for it's poor image handling as my original JPEG is reasonably clean. The original RAW is free of artifacts of course. God bless it's cottons. I feel that I must say this group is a very friendly place. It's not a showcase for photography but rather a place for people that have a passion for the aquatic realm to communicate that passion in there own way. There are many highly competitive pages on FB for underwater photographers to showcase their work. I have posted this image on a few of those also. Maybe you would like to take your concerns to one of those and allow some of the worlds best and sharpest to have a say on what seems to be a reel concern for you. There would be a more appropriate forum than here.

Ian Diver I wish I could like that comment twice Stefan :)

Helen Peatfield See, nothing 'fishy' about this turtle.... I'll get my coat....

Patrik Good Thank you, Stefan. You did a great job then. It is an absolute disgrace that a beautiful picture is disfigured by facebook in a way it does it for me. I am stunned that I seem to be the only one seeing those borders, a blurr that looks like a thermocline around the whole contour of the turtle. And I double-checked with a few other photos and could not see that effect at all. If you had seen what I see you would probably have understood my voiced concern and would have probably clarified/investigated right away without taking offence. I checked your photo because I was interested in a photographic detail but didn't comment on it out of respect for the purpose of this group. I saw that you posted it in other groups too. I offer my apologies and am happy to leave this friendly place after I have undergone all the bashing. Have fun and keep taking pictures. @ Ian Diver: very surprising comments and differing observation but from the looks of it the mistake seems to be on my side. It may be that the accusatory tone came from being ignored while pointing out what on my screen is an obvious eye sore of a beautiful turtle with a few sun rays.

Ian Diver I might have been reading into your comments to much but your concern surprised me. I have never felt the need to investigate people's images. That's probably where we differ

Message posted on The Global Diving Community on 17 Oct 2013
Alexia Dunand The most grateful creatures I've ever seen...

Alexia Dunand I meant graceful..:-)

Ron Silver This photo is a Green Sea Turtle, Chelonia mydas.

Alexia Dunand Thanks

Message posted on Wetpixel Underwater Photography on 15 Oct 2013
Javier Herrero Maldivean turttle.

Ron Silver Green sea turtle, Chelonia mydas

Javier Herrero (Y)

Jeff Joel love the greenies...

Javier Herrero Me too Jeff Joel

Message posted on Wetpixel Underwater Photography on 25 Jul 2013
Taxonomy
Animalia (Kingdom)
  Chordata (Phylum)
    Vertebrata (Subphylum)
      Gnathostomata (Superclass)
        Tetrapoda (Superclass)
          Reptilia (Class)
            Testudines (Order)
              Cryptodira (Suborder)
                Cheloniidae (Family)
                  Chelonia (Genus)
                    Chelonia mydas (Species)
Associated Species