Saw this from a ferry in the English Channel, assumed it to be a Sunfish, but the "fringes ?" confuse me.
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The view of the main body of the fish is quite broken up but the dorsal fin sticking out of the water is the clue and confirmation that this is Mola mola.
Can you explain what you mean by confusing fringes?
Thanks for the comment and question. The "fringes" that confuse me are most evident in the first image - the image has to be enlarged somewhat to see these properly. When I saw the Sunfish in the water, I was fairly sure what it was, but the images made me think it may have been "nibbled".
I had a close look at the first image. I can see the dorsal fin cutting the water at an angle as it does- it sort of wiggles and changes its angle as the fish progresses forwards. I think the fringes must be caused by distortion due to the broken up nature of the waters surface?
I don't believe this is anything more than floating debris (like another 'sunfish' at http://www.ispot.org.uk/node/242125). Picture 0475 is somewhat persuasive, but 0474 is overwhelmingly unconvincing. I have seen Mola live at sea, and it does not look like this. http://www.ispot.org.uk/node/241699 there is no doubt about.
If it werent for the floppy and turning dorsal fin extending above the water it would be difficult to say what this object is. Thanks to the dorsal fin behaving exactly as a sunfish dorsal does, it cant be anything else. It is also in the correct position in relation to the main bulk of the animal which is anterior to the fin. In the third pic the dorsal and ventral fins can both be seen above and below the rear of the fish.
As for the other sunfish, there is no question that it is Mola mola. All the anatomical features (eye, operculum, dorsal fin, pectoral fin) are there in order to identify it by, with the exception of the ventral fin which is only not apparent due to refraction and the shape of the sea surface.
I have posted a labelled version of Scott62's Cornish Sunfish observation here, I hope it helps, the angle of the fish is the problem, not a straightforward image by any means.
Lat/Lng: 49.9, -2.9
OS grid ref: SY354003