Stuart Pearce Marine life under the microscope...
Sepiola atlantica, the chromatophores that allow cephalopods to change colour are actually multicellular organs, not colour changing cells, which is a common misconception. They have their own muscles that can stretch the organ into a disc up too 50 times its original size.
Millport Marine Biology Fieldstation, Scotland 2006.
Stuart Pearce Marine life under the microscope...
Sepiola atlantica from an earlier marine biology fieldtrip, juveniles are regularly found in rockpools around UK coasts.
Millport Marine Biology Fieldstation, Scotland.
Stuart Pearce Sometimes as marine biologists we are required to remove marine creatures from their natural environment when researching certain aspects of their physiology. This is always carried out under strict guidelines, and all specimens are quickly released unharmed back to where they came. My microscope shots of Sepiola atlantica were taken at Millport Marine Biology Fieldstation in Scotland, and were taken to teach students about how chromatophores allow colour change in cephalopods. Thank you to Giorgio Cavallaro Uwp, who in recent discussions said he would be happy for me to post a few of these shots on the group.
Giorgio Cavallaro Uwp Hi Stuart, thank you so much for sharing this photo, taken from your studies in marine biology, you have the shots very interesting to understand and study some marine organisms so small that you hardly get to see. Thank you for the contribution you give to science.
David Campbell Working on a home page for them at http://marinebio.org/species.asp?id=1401
Annette Graves I have about 60 shots from this microscope session David, if you want to use any, no problem just let me know. :)
Annette Graves Seem to be called Bobtail Squid in most places, but here in the UK they are called Little Cuttlefish, the debate continues, thats why I have started leaving the common name off LOL :)
David Campbell Great, I'm always looking for great media for all our species home pages (cephs are especially difficult to find photos of). Feel free to email me at david@marinebio.org if you'd like to discuss it further. Common names are as variable as snow flakes it seems, I try to use the "most" common English one based on leading authorities but then again I often see common fishes with hundreds of common names in as many languages. Scientific names are much easier (until you you start looking at synonyms that is...). Keep up the great work!
Annette Graves OK, will do, got my mother in hospital for next couple of weeks, but as soon as time allows I will drop you an email, thanks :)
Stuart Pearce Marine life under the microscope....
The suckers of Sepiola atlantica in greyscale, I think it shows more detail than in colour.
Millport Marine Biology Station, Scotland 2004.
Stuart Pearce Marine life under the microscope....
Have about 20 shots of Sepiola atlantica in this pose, here is another one re-edited and brought up to date.
Millport Marine Biology Station, Scotland 2006.
John Paul Connor interesting
Stuart Pearce Thanks John :)
Hamdi Kassem night dive ?
Stuart Pearce Microscope shot Hamdi :)
Zeynep EroÄŸlu Amazing like always :))))
Stuart Pearce Thanks Zeynep :)
Marie-therese Bertin super joli!!!
Stuart Pearce Thanks Marie-therese :)
Claudia Weber-Gebert cutie <3
Stuart Pearce Thanks Claudia :)
Rym Ski Wawwwwwwww very very very beatiful interesting
Stuart Pearce Marine life under the microscope...
First time showing of this shot of Sepiola atlantica.
Millport Marine Biology Station, Scotland 2006.
Malida Alcazar Excellent!!
Stuart Pearce Thanks Malida :)
Gina Bittencourt Super !!!!
ALperen Barut Super ?? Supernatural :)
Gina Bittencourt Tbm achei em outro sentido rrsrsrsrsr :)
Stuart Pearce Thanks Gina :)
Stuart Pearce Thanks ALperen, this is how they look under a microscope, with the backlighting and very limited depth of field :)
ALperen Barut but very nice job :) wonderfull ..
Claudia Weber-Gebert <3 cutie
Stuart Pearce Thanks Claudia :)
Charlene Krecz <3
Stuart Pearce Thanks Charlene :)
Charlene Krecz You are welcome, Stuart. A tiny speck of exquisite life!
Stuart Pearce Marine life under the microscope...
Same pose different angle, Sepiola atlantica re-edited and brought up to date.
Millport Marine Biology Station, Scotland 2006.
Stuart Pearce Marine life under the microscope...
The amazing chromatophore display of Sepiola atlantica.
Millport Marine Biology Station, Scotland 2006.
Stuart Pearce Nikon 4300, £100 years ago on Ebay :)
John Paul Connor Belle
Marie-therese Bertin splendide ,bravo John !!!
John Paul Connor Merci Marie-therese c'est une très belle photo de Stuart
Stuart Pearce Marine life under the microscope...
Internal organs of the Little Cuttlefish/Bobtail Squid (Sepiola atlantica)
Millport Marine Biology Station, Scotland 2006.
Katia Di Gioia Wonderful
Stuart Pearce Thank you Katia :)
Athos Mastropierro nice shot!
Stuart Pearce Thanks Athos :)
Gina Bittencourt Fantastic !
Stuart Pearce Thanks Gina :)
Marie-therese Bertin sublimissime !!!
John Paul Connor Belle
Imade Widana Great shot Stuart
Ernst Andres (Y) TOP (Y)
Stuart Pearce Thanks Marie-therese, John, Imade & Ernst :)
Stuart Pearce Marine life under the microscope....
One of the original 2004 Sepiola atlantica shots gets a makeover (seeing so many things to correct with new screen LOL).
Millport Marine Biology Station, Scotland.
Ron Silver Nice shot of the chromatophores
John Paul Connor Nice Shot
Stuart Pearce Thanks Ron :)
Stuart Pearce Thanks John :)
Stuart Pearce Wondered why it was grainy, 3 megapixel camera LOL :D
Stuart Pearce Marine life under the microscope...
Sepiola atlantica chromatophores.
The color patterns of cephalopods are largely controlled by chromatophore organs. A chromatophore organ is composed of a single chromatophore cell and numerous muscle, nerve, glial and sheath cells. Pigment granules lie within the chromatophore cell in an intracellular sac, the cytoelastic sacculus, that has elastic walls. Four to twenty four radially arranged muscle cells, with their associated nerve and glial cells, attach to the cell membrane where the latter is anchored to the cytoelastic sacculus around its equator. The contraction of the muscle cells stretches the lenticular sacculus into a thin, flat disc with serrated edges. The diameter of the sacculus expands up to about 7 times its retracted state which is equivalent to an increase in area of about 50 times.
Millport Marine Biology Fieldstation, Scotland 2006.
Stuart Pearce You once asked me Ron, if I had any chromatophore shots, I kept looking, this was about the limit with the stereo microscope :)
Ron Silver Fascinating. Given enough time, I might have figured it out. My initial reaction would have been look at all of the Acoel (Waminoa sp.) flatworms.......Thanx.
Ashley Missen Sorry Guys I am Feeling in a Squiddy mood so you might see a few posted soon
Olympus XZ1 PT50 housing Sola 600(Top) Sola 800 (Side) ys110a 2x Dyron Macro Lenses
F8 ISO100 1/50
Penny Martin I think it is sepiola atlantica ?? seen in Orkney this morning.
Penny Martin Or is it just a "sepia" hatchling ??? can anyone advise please?
Cynthia D. Trowbridge not a clue...we do not have cuttlefish on our coast... I do admire it though :-)
David Wilson I don't think this is a Sepia officinalis hatchling as the ones I have seen resemble miniature adults, I caught a little one like this in a shrimp net in the Salcombe estuary many years ago. At the time I thought it was Sepiola atlantica.
Andy Horton http://www.glaucus.org.uk/Sepiola.html
Andy Horton Sepietta http://www.marlin.ac.uk/speciesinformation.php?speciesID=4335
Darryl Mayer It is Sepiola atlantica aka Little Cuttlefish/Bobtail cuttlefish
Penny Martin or is it Sepietta oweniana?? How would one tell the differerence ? it definitely was showing blue bioluminescence .. see my other photos
Penny Martin I think it is sepiola atlantica ?? seen in Orkney this morning.
Penny Martin Or is it just a "sepia" hatchling ??? can anyone advise please?
Cynthia D. Trowbridge not a clue...we do not have cuttlefish on our coast... I do admire it though :-)
David Wilson I don't think this is a Sepia officinalis hatchling as the ones I have seen resemble miniature adults, I caught a little one like this in a shrimp net in the Salcombe estuary many years ago. At the time I thought it was Sepiola atlantica.
Andy Horton http://www.glaucus.org.uk/Sepiola.html
Andy Horton Sepietta http://www.marlin.ac.uk/speciesinformation.php?speciesID=4335
Darryl Mayer It is Sepiola atlantica aka Little Cuttlefish/Bobtail cuttlefish
Penny Martin or is it Sepietta oweniana?? How would one tell the differerence ? it definitely was showing blue bioluminescence .. see my other photos