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Ancient Submariner


Ancient Submariner
Photo Information
Copyright: Mehmet Atatur (matatur) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1054 W: 245 N: 1626] (5312)
Genre: Animals
Medium: Color
Date Taken: 2008
Categories: Molluscs
Camera: Nikon Coolpix 8800
Details: Tripod: Yes
Photo Version: Original Version
Theme(s): A study in Conchology (seashells) 1 [view contributor(s)]
Date Submitted: 2009-01-11 12:49
Viewed: 5315
Points: 88
[Note Guidelines] Photographer's Note
MERHABA DOSTLARIM!
I'm sure most of you will face no difficulty in recognizing my present posting, the shell of a Pearly or Chambered Nautilus (Nautilus pompilius), a living relict of distant geological times and the origin of all living cephalopods, currently inhabiting the pelagic waters of the widespread Indo-Pacific region. It is a nocturnal bottom predator feeding on shrimps and small fish, but also predate pelagically within open water. Its modified "foot" consists of nearly 90 suckerless prehensile tentacles arranged in two incomplete concentric rings around the beak-like mouth, also forms the muscular funnel with two unfused lobes for the characteristic "jet-propulsion" of the cephalopods. Its primitively shaped eyes have a "pinhole camera" construction, with very weak sight, in fact the animal depends on a pair of sense organs, the "rhinophores" within the mantle cavity, for chemo-detection used in finding food in completely dark surroundings.
Here, the shell (diameter: 20 cms) is reproduced in its natural position when carrying the living mollusc.
The soft Nautilus body is characterized by this external shell, quite distinct from modern cephalopods, the animal can pull itself completely into this shell, closing the opening with a leathery "hood" produced by two specialized dorsal tentacles. The calcareous shell is plano-spirally coiled in a logarithmic or equiangular spiral, smooth, matte whitish outer layer with distinct growth striae is quite different in structure from the pearly-iridescent, nacreous inner layer. Structurally the 1-1.5 mm thick shell is highly pressure resistant, will implode only at a depth exceeding 800 m. The shell is internally divided into progressively larger chambers or camerae by calcareous septa as the animal grows, which occupies the last chamber open to the outer environment. The septa are pierced in the middle letting a duct-like structure pass through, which is itself occupied by a specialized extension of the living glandular mantle epithelium, the siphuncle, when the need arises this tissue can secrete or absorb gas into or from the saline filled chambers, a mixture of nitrogen and argon, to achieve neutral buoyancy anywhere between a depth from 700 plus meters to the sea surface within the vertical water column. I.e., the animal uses the gas/liquid ratio within the chambers to alter its buoyancy, thus its depth, without expending much energy!
The shell colouration keeps the animal hidden (cryptic) in the water during the daytime, when looked at from the top the brownish striped design makes it blend with the darker water below, while its venter is almost white, making the animal almost invisible against the lighter coloured water above. A popular mode of natural camouflage among many pelagic marine animals known as "countershading".
And what does the innards of the shell look like? Well my friends, that is the topic of a future posting!
This close up was taken under natural available light with open-shade conditions against a dark BG to demonstrate the outer morphology, surface features, pattern and colouration of the Nautilus shell.

rousettus, Juyona, volkan, maurydv, fiyo, eng55, banaei_nikon, Alex99, jusninasirun, uleko, horia, haraprasan, Dis. Ac., ramthakur, boreocypriensis, eqshannon, sranjan, Heaven, Miss_Piggy, flashpoint, KOMSIS has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To ramthakur: on ancient...matatur 1 01-14 04:25
To horia: on ancient...matatur 1 01-13 11:47
To euroblinkie: on ancient...matatur 1 01-12 07:42
To alliturnam: on ancient...matatur 1 01-12 07:39
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Critiques [Translate]

harika renklerle eskilerden kalma çok güzel bir kavkı. her zamanki gibi siyah fonda harika bir sunum olmuş hocam. bütün detaylar, açı ve netlik yanında; ışık kullanımındaki ustalığınızla üç boyutlu bir görünüm oluşmuş. eline sağlık. notlarınızı okumak için tekrar ziyaret edeceğim.
iyi geceler, saygı ve selamlarımla.

  • Great 
  • nglen Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2883 W: 30 N: 9683] (36145)
  • [2009-01-11 12:56]

Hi Mehmet. This is a beauty with amazing markings. You have taken this one with fine detail and rich colours. once again stands out from the dark BG so well. TFS.
Nick..

  • Great 
  • efsus Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 415 W: 11 N: 843] (3947)
  • [2009-01-11 13:17]

Merhaba Mehmet Hocam!
Bbu ne güzel renkler ve detaylar! Gerçekten çok üst düzey bir çekimle etkileyici karelerinizden birini daha paylaşmışsınız. Fotoğrafta en zor renklerden olan beyaz rengin kırmızıyla kombinasyonu çok başarılı sunmuşsunuz. Üç boyut hissi herzamanki gibi... Emeğinize sağlık hocam.
Hoşçakal.

Hüseyin

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2454 W: 10 N: 8044] (25460)
  • [2009-01-11 15:13]

Hi Mehmet,

The image is wonderful and the notes are most informative. Your always excellent colors and details. It's fascinating to see not only the shell, but the mollusk as well. The black background is perfect.

Jane

this one is really beautiful, have a nice week and greetings Ori

  • Great 
  • Juyona Gold Star Critiquer/Silver Workshop Editor [C: 2232 W: 10 N: 2971] (16891)
  • [2009-01-11 23:28]

Hola amigo,
magnífica foto,
bella compo y atractivo pov...
colores y presentación agradable,
saludos

Merhaba Mehmet hocam,
yine nefis bir çalışma sunmuşsunuz
bizlere..renkleriyle ve fonuyla harika görünüyor..
ellerinize sağlık..

Merhaba Mehmet,
mi stupisci ogni volta con le tue splendide immagini di conchiglie, che curi sotto tutti gli aspetti, da quello compositivo a quello espositivo, con un'eccellente definizione di ogni dettaglio e con un contrasto delle tonalità dei colori sempre affascinante e misterioso.
TFS.
Maurizio

beautiful composition , perfect light and details , great colours,
TFS,
septimiu

Merhabalar hocam
Detaylar muhteşem. çok gizemli bir görünümü var. Paleontoloji okurken buna sefalopod dediğimizi hatırlar gibiyim...
Ellerinize sağlık

  • Great 
  • fiyo Gold Star Critiquer/Gold Note Writer [C: 1053 W: 5 N: 3475] (15161)
  • [2009-01-12 1:58]

Merhaba Mehmet bey, renkleri ve çok estetik formuyla izlenmesi son derece zevkli bir fotoğraf olmuş, ellerinize sağlık. Selamlar.

  • Great 
  • eng55 Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1256 W: 42 N: 1976] (5892)
  • [2009-01-12 2:50]

Merhaba Mehmet Bey,
BU daha önce hiç görmediğim bir tür.Renkler,desen mükemmel.Sizde bu mükemmelliği çok güzel vurgulamış ve yansıtmışsınız.Işık,pozlama,detaylar mükemmel olmuş.
Selamlar,ellerinize sağlık!

Hi Mehmet,

The image is wonderful and the notes are most informative.
this one is really beautiful

TFS
**MAB**

  • Great 
  • foozi Gold Star Critiquer/Gold Note Writer [C: 2791 W: 0 N: 6696] (25839)
  • [2009-01-12 3:12]

Merhaba Mehme,
indeed it such an honour to have you looking into my post. Reading your biodata, your such an excellent academician.
Such a lovely shot and great composition which looks so lively. I have it also like this, it was found on the beach in Pulau Langkawi, facing the Straits of Malacca.
Very nice pattern and colours.

regards,
Foozi

Merhaba Mehmet Bey,ışık ve çekim açısı yine mükemmel.Desenleri harika görünüyor.Postalayacağınız her bir kareyi,büyük bir merak ve sabırsızlıkla bekliyorum.Karelerinizi izlemek çok güzel,ellerinize sağlık,saygılar:)

  • Great 
  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4072 W: 133 N: 7096] (23735)
  • [2009-01-12 6:30]

Hi Mehmet.
What a nice specimen. This shell is simply wonderful. Shapes, colour pattern, texture are amazing and picture of it is top quality. Lighting and reflection on the shall surface are stunning. Bravo. Well done.
Alexei.

hello Mehmet
great sharpness and VERY good colours

i have a picture"s next time for you shells of costa rica
greeting lou

Merhaba Mehmet, splendid shell with fantastic colors, fine details and excellent sharpness, very well done, ciao Silvio

Salam Mehmet.

Thanks for sharing this unique pov of the beautiful submariner. Amazing beauty of the pattern and the shape of the shell is so rounded and polished.


Best regards and have a wonderful week ahead.
Jusni

  • Great 
  • gannu Gold Star Critiquer/Gold Note Writer [C: 988 W: 4 N: 3277] (14761)
  • [2009-01-12 20:27]

Mehmet, What a colorful shot and very very focussed. This closeup is brilliant and with superb color vibration and tones. Ganesh

  • Great 
  • uleko Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3396 W: 172 N: 3310] (10940)
  • [2009-01-13 4:12]

Hello Mehmet,
Superb close-up of this beautiful shell. Wonderful details of its pattern and colours.
Very interesting note too.
TFS and regards, Ulla

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2009-01-13 8:39]

Merhaba Mehmet,
A missed this fine portrait of a Nautilus. The POV is classic and the sharpness, colours and lighting superb to allow us to see this 'present-day fossil' in the best way.
Thanks for sharing this delight and once again for your excellent note to go with it.
Best wishes,
Ivan

  • Great 
  • horia Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2158 W: 224 N: 4749] (16656)
  • [2009-01-13 9:01]
  • [+]

Hi Mehmet

Indeed, no problem recognizing this one :)
Being different from all the other and usually bigger than most i've studied in school, i even remember making a sketch in my notebook about the internal structure of the shell :)
Coincidentally or not, the teacher we had for this subject (invertebrate zoology) is now my PhD coordinator :) (but my subject for now are reptiles). Still, we got and get along very well.
A very nice presentation and very elaborate note.
I like the colors and clearly visible pattern of the shell here and the very sharp details everywhere.
...No wonder captain Nemo named his submarine after this :)

Bravo and TFS
Horia

Hi Mehmet,
A nice capture of this beautiful shell. Very well composed with sharp details. Thanks a lot for sharing.

  • Great 
  • izler Gold Star Critiquer [C: 1387 W: 3 N: 9] (44)
  • [2009-01-13 11:53]

merhaba hocam
tür de yakın çekimi de nefis
koyu fon, renkler ve netlik de başarılı
eline sağlık
selamlar
izler

  • Great 
  • Ishi Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 298 W: 21 N: 1943] (13387)
  • [2009-01-13 12:43]

Merhaba Mehmet!

Great rendition of the Nautilus shell in your typical superb style. Well done!

This brings memoies of many years ago, when we studied the mechanism of the nacre ( the "innards" as you called it in your excellent note) formation of the Nautilus and other mollusks. We used elrctron diffraction to show the templating of the mineral on acidic proteins.

Thank you and best wishes,

ishi

Hi Mehmet,

this are a beautiful detailed shell.
I like the colours and design of this shell.Ofcourse perfect pov, dof and bg.

Gert

ps. I have fungi photo's in my archive.

Hi Mehmet,
As usual, this is a high quality post with very useful notes. I learn many things about those special species by reading them. Details and colors are wonderful and the dark background makes it stand out in all its splendor. Congratulations!
Claudine

Your shell images are worth waiting for, Mehmet.
I am stunned at the unique beauty of this one.
Creations of nature such as this one prove beyond doubt that in the final analysis, nature is unsurpassable even in terms of art.
Those orange-red streaks on the top half of the shell are the brush strokes of the Ultimate Artist.
You, in your own way, play a sterling role in connecting us with this special aspect of nature's creativity through your immaculate imaging and through your erudition in this field.
Thank you very much and warm regards.
Ram

  • Great 
  • Mana Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1772 W: 36 N: 5597] (18598)
  • [2009-01-14 0:08]

Hi Mehmet,
Wonderful shot this beautiful looking shell with such lovely colours, patterns and details. Superb use of flash lighting and the black BG makes the image so special, as always.
TFS.
Sumon

Hello Mehmet,
Thanks for sharing this ancient submariner.
I read about the 'pinhole camera' construction. Very strange.
You provided a lot of in-depth info. An extraordinary world.
Annick

  • Great 
  • joey Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1739 W: 224 N: 6872] (24909)
  • [2009-01-17 12:53]

Stunning shot of this gorgeous shell!
Amazing colours and patterns.
Very good sharpness.
Great DOF.

Very well done,
Joe

Allah allah... ben bunu daha önce gördümdü. Nasıl oldu yorumlamayı unutmuşum. Güzel bir tanıtmalık olmuş Hoca. Eline sağlık.
Bayram

Olá Mehmet

Assim como os pássaros, as flores e as borboletas, as conchas também são um presente da natureza para os nossos olhos.:)
Com suas formas e desenhos variados chamam a atenção como nessa linda foto...as cores também exercem fascínio, neste caso a cor laranja bem forte se encarrega de dar uma beleza bem original.
Mehmet, olhei todas as suas fotos e amei, são lindas demais.
Parabéns pelo teu trabalho, muito interessante e educativo.

Grande abraço,
Vera.

Your images continue to amaze me...and if it were not for your occasional visit....I would almost forget...not a bad thing because I am sure your images are of the highest quality and most important in the filed which you love so much..and of course it shows...always has and always will I suspect and God willing!
Bob

Merhaba Mehmet Bey...
Ne kadar güzel bir konu bu. Her biri birbirinden güzel ve izlemesi keyifli. Gerçek bir arşiv niteliğinde. Çekim ustalığının bundaki katkısını yadsımak olanaksız. Kutlarım.
Sevgi ve saygılarımla...

Merhaba Mehmet,
Excellent details of this unique Chambered Nautilus. I have seen them frequently in Andaman & Nicobar archipelago. I like it's anatomical completeness as seen against black BG. TFS.
Regards-Subhash

As usual Sir, more learning for me here...The shot, of course, is superb...
Cheers!
Goldy

Hi Mehmet!

Hmm, I'm one of those who face this difficulty... I don't know the names of the shells you present us and I don't recognize any of them, but I'm glad to learn many things about them through your magnificent pictures and your instructive notes.

Kind regards

Markus

  • Great 
  • Janice Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3277 W: 148 N: 6163] (18832)
  • [2009-02-04 17:24]

Yes, I have seen Nautilus before at a museum in New Caladonia and I know a little about them. It's an ancient shell-fish.
Beautifully captured Mehmet
Thank you
Janice

Hallo Mehmet.
Like always your artistic photography is once again shown in this piece of artwork. This is a beautiful specimen with wonderful markings and patterns. Your presentation is done with style and preciseness, like I have learned to know you. You have taken this one with fine detail and rich colours. The orange and ivory is a great combination and it stands out well against the dark background. Thanks for sharing.
Best regards
Anna

hello Mehmet!
interesting shell of these cephalopod molluscs ,considered extinct during the millennium that have evolved to the present day.
Today I saw an interesting documentary on the
Nautilus Pompilius on National geographic.

compliments for incredible portfolio of shells!
best regards sERGIO

  • Great 
  • KOMSIS Gold Star Critiquer/Gold Note Writer [C: 820 W: 0 N: 2419] (10674)
  • [2009-05-13 2:57]

Mehmet bey selamlar,
Başarılı bir makro fotograf...
Kontrast ve renkler ile deyaları nefis güzellikte.
Emeğinize sağlık.
Seyfi

Beautiful image of the nautilus! This has got to be one of my favorites of yours. I love the zebra spiral pattern. Well captured Mehmet.

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