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File:PortJacksonShark'sEgg20050417c.JPG

Description Egg case of Port Jackson shark. Egg case found on Vincentia beach, Jervis Bay Territory, Australia.

Egg cases when found washed up on the beach are sometimes known as a Mermaid's purse.

The screw-like helical flanges help the mother shark to secure the egg within rock crevices.
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Author User Golden Wattle on en.wikipedia
Permission
( Reusing this file)
Public domain This work has been released into the public domain by its author, AYArktos. This applies worldwide.
In some countries this may not be legally possible; if so:
AYArktos grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title OLYMPUS DIGITAL CAMERA
Camera manufacturer OLYMPUS OPTICAL CO.,LTD
Camera model C740UZ
Exposure time 1/200 sec (0.005)
F-number f/3.5
ISO speed rating 200
Date and time of data generation 11:20, 17 April 2005
Lens focal length 49.4 mm
Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used v754g-79
File change date and time 11:20, 17 April 2005
Y and C positioning Co-sited
Exposure Program Creative program (biased toward depth of field)
Exif version 2.2
Date and time of digitizing 11:20, 17 April 2005
Meaning of each component
  1. Y
  2. Cb
  3. Cr
  4. does not exist
Image compression mode 2
Exposure bias 0
Maximum land aperture 3.6 APEX (f/3.48)
Metering mode Pattern
Light source Unknown
Flash Flash did not fire, compulsory flash suppression
Supported Flashpix version 0,100
Colour space sRGB
File source Digital still camera
Scene type A directly photographed image
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Digital zoom ratio 0
Scene capture type Standard
Scene control Low gain up
Contrast Normal
Saturation Normal
Sharpness Normal

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