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Intertidal zonation


Intertidal zonation
Photo Information
Copyright: Amelia Heath (Amelia) Silver Star Critiquer/Gold Note Writer [C: 26 W: 0 N: 93] (310)
Genre: Plants
Medium: Color
Date Taken: 2009-07-17
Categories: Ocean
Exposure: f/8, 1/320 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2010-07-02 4:03
Viewed: 3631
Points: 12
[Note Guidelines] Photographer's Note
The intertidal zone, also known as the foreshore and seashore and sometimes referred to as the littoral zone, is the area that is exposed to the air at low tide and underwater at high tide, the area between tide marks. This area can include many different types of habitats, including steep rocky cliffs, sandy beaches, or wetlands, e.g. vast mudflats. The area can be a narrow strip, with a narrow tidal range, or can include many meters of shoreline where shallow beach slope interacts with high tidal excursion.

At Tungenes, the most northerly part of Randaberg Kommune, there is a very narrow tidal range, although the Splash Zone extends for many more metres because of frequent stormy weather.

The rocky foreshore slopes very gently down to the sea, then there is a drop where the water becomes suddenly much deeper. The crevasses in the rocks are very interesting and support a wide variety of marine life, and organisms in this zone generally are not well adapted to periods of dryness and temperature extremes. There are exceptions of course.

The 2 yellow 'blobs' on this photo are probably young hold-fasts of either Laminaria spp or those of Thongweed, Himanthalia elongata. I think they are most probably the latter.

Also shown is a red seaweed, Corallina officinalis, which forms calcium carbonate deposits within its cells which serve to strengthen the thallus. These white deposits cause the seaweed to appear pink in colour with white patches where the calcium carbonate is particularly concentrated, such as at the growing tips. The other main species here is probably Balanus spp.

The 'artistic' distortion is due to wave movements over the surface of the rocky shore.

Dis. Ac., uleko, maurydv has marked this note useful
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To Belgerdy: UnderwaterAmelia 1 07-04 23:35
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Critiques [Translate]

  • Great 
  • horias Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 837 W: 58 N: 2084] (11033)
  • [2010-07-02 4:04]

Hi Amelia
What a interesting shot! Great details and colors.
Your note is very instructive for us.
Congratulation!
Horia

intersting shot with as nice composition indeed,
all is under water?

cheers
J

Hello Amelia,

we are not in the semi final but uin the final.
Thanks.
This shot are very good and your are from now on beginner off.
Good pov, detail and sharpness and you are learn to fast, you are to good for beginner now.
Fine colours.

Gert

Fantastic colours and light in a intrigant alternative compo.

Roberto

  • Great 
  • uleko Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3396 W: 172 N: 3310] (10940)
  • [2010-07-13 8:13]

Hello Amelia,
I love this kind of marine environment where there is so much to see! A very fine and artistic composition showing fascinating and intermingled shapes and colours. A most interesting note too!
TFS and best regards, Ulla

Hallo Amelia,
a superb macro shot of this intertidal zone, very good sharpness and marvellous colours, a very pleasing composition of this spectacular sea habitat.
TFS
Best regards
Maurizio

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