Unknown marine eggs

[Charles Krebs]

Finally got around to dragging the plankton net again. Nowhere near as much plankton as I get in the late spring and summer (water temp is only about 45 degree F this time of year... increasing to a "sizzling" 56 or so in summer). I did find a fair number of these eggs (at least I think that is what they are), but no idea what they are from. I thought Franz had posted something like this a while back but I could not find it.

Typically there were 3 or 5 eggs in each circular mass. In a profile (side view) each egg mass was shaped sort of like a derby hat (or UFO ) Each individual egg was just about 150 micron in diameter.

[Jacek]

Great photos, wow !

[arturoag75]

hi Charlie,
first is really incredible!
what objective did you used for it?
best
arturo

[Charles Krebs]

Arturo,

The first is the Olympus 10/0.40 S Plan Apo. (The second is the 40/0.95).

[RogelioMoreno]

Charles,

Wow, very nice!

Did you remember at what flash power you did shoot with the 40x?

Rogelio

[Jean-marc]

Hi,

Incredible detail on the first one !

Best regards

JM

[Charles Krebs]

Thanks all!

Rogelio..

Did you remember at what flash power you did shoot with the 40x?

These were actually shot with continuous light, but with the 40X I will typically be about 2 stops under full power (DIC). With the 60X and 100X I'm at full or maybe -1 stop (with DIC lighting).

[Wim van Egmond]

Nice! It could be the egg of Littorina. It's a flat disk. isn't it?

Wim

[Charles Krebs]

I do believe you have it Wim. Flat on one side with a shallow "dome" on the other... as in Fig. 7, 8. Thanks!


from:http://sabella.mba.ac.uk/882/01/The_bre ... toides.pdf

[Peter De Smidt]

Super cool photos!

[carlos.uruguay]

Absolutely perfect!