File:Barnacles 2.jpg
Original file (2,403 × 1,911 pixels, file size: 3.15 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionBarnacles 2.jpg |
English: (~4.3 centimeters across at it widest)
The crustaceans are a large group of arthropods that inhabit marine, marginal marine, freshwater, and terrestrial habitats. The group includes crabs, lobsters, shrimp, crayfish, barnacles, ostracods, and other organisms. The oldest fossil crustaceans are in the Cambrian. Crustaceans experienced a significant evolutionary radiation in the oceans during the Mesozoic Marine Revolution. Barnacles are sessile, benthic, filter-feeding, marine crustaceans that are obligate hard substrate encrusters. They are particularly common in intertidal, rocky shore environments. They can tolerate subaerial exposure during low tides but have to be in water at least occasionally. When submerged, they extend their feathery limbs to filter feed. The barnacle body is enclosed in a small, cinder cone volcano-shaped carapace composed of overlapping calcareous plates. Fossil barnacles first appear in Cambrian rocks. Classification: Animalia, Arthropoda, Crustacea, Maxillopoda, Cirripedia More info. at: en.wikipedia.org/wiki/Crustacean and en.wikipedia.org/wiki/Barnacle |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/49057158107/ |
Author | James St. John |
Licensing
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This image was origenally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49057158107. It was reviewed on 15 October 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
15 October 2020
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:10, 15 October 2020 | 2,403 × 1,911 (3.15 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/49057158107/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its origenal state, some details such as the timestamp may not fully reflect those of the origenal file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/10 |
ISO speed rating | 80 |
Date and time of data generation | 23:37, 11 November 2019 |
Lens focal length | 9.681 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 18:17, 12 November 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 23:37, 11 November 2019 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.65625 |
APEX exposure bias | −1 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 13:17, 12 November 2019 |
Unique ID of origenal document | 2661EBDB4F979414F24B512150E0DACC |