File:Callinectes sapidus (blue crab) (Mullet Key, Tampa Bay, Florida, USA).jpg
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DescriptionCallinectes sapidus (blue crab) (Mullet Key, Tampa Bay, Florida, USA).jpg |
English: Callinectes sapidus Rathbun, 1896 - anterodorsal view of a blue crab carapace in Florida, USA. (December 2012)
The crustaceans are a large group of arthropods that inhabit marine, marginal marine, freshwater, and terrestrial habitats. The crustaceans include crabs, lobsters, shrimp, crayfish, barnacles, ostracods, and other organisms. The oldest fossil crustaceans are in the Cambrian. The group experienced a significant radiation in the oceans during the Mesozoic Marine Revolution. The above photo shows a bleached carapace of a blue crab, Callinectes sapidus. Info. from Witherington & Witherington (2007): "Blue crabs are swimming crabs in the Family Portunidae. Blue crabs have pointed projections on the sides of their carapace and swimming paddles on their hind legs. They are greenish and blue. Females have orange highlights and clawtips, and are more commonly beached than males. Female blue crabs are occasionally beached after migrating from estuaries to spawn at sea. Blue crabs are swift predators that eat mollusks, fishes, and other crabs." Classification: Animalia, Arthropoda, Crustacea, Malacostraca, Decapoda, Brachyura, Portunidae Locality: Fort DeSoto Gulf Pier Beach - beach just north of southwestern corner of Mullet Key, Fort DeSoto County Park, northern edge of far-western Tampa Bay, Gulf of Mexico Coast of southern Florida, USA More info. at: en.wikipedia.org/wiki/Crustacean and en.wikipedia.org/wiki/Callinectes_sapidus Reference cited: Witherington & Witherington (2007) - Florida's Living Beaches, a Guide for the Curious Beachcomber. Sarasota, Florida. Pineapple Press, Inc. 326 pp. |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/24449018231/ |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/24449018231. 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
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:09, 15 October 2020 | 2,629 × 1,583 (2.19 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/24449018231/ 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 original state, some details such as the timestamp may not fully reflect those of the original 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 | 1/400 sec (0.0025) |
F-number | f/4.5 |
ISO speed rating | 80 |
Date and time of data generation | 17:48, 18 December 2012 |
Lens focal length | 14.303 mm |
Image title | |
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 13.0 (Macintosh) |
File change date and time | 22:48, 21 January 2016 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:48, 18 December 2012 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 8.65625 |
APEX aperture | 4.34375 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4.34375 APEX (f/4.51) |
Metering mode | Pattern |
Flash | Flash did not fire, auto 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 | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 15:48, 21 January 2016 |
Unique ID of original document | A2B845651C6BCDB46C945B0EF9C4C841 |