File:Diploria labyrinthiformis (grooved brain coral) (San Salvador Island, Bahamas) 1 (16107511066).jpg
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DescriptionDiploria labyrinthiformis (grooved brain coral) (San Salvador Island, Bahamas) 1 (16107511066).jpg |
Diploria labyrinthiformis (Linnaeus, 1758) - grooved brain coral on a patch reef. Stony corals have a patchy distribution in the shallow marine waters surrounding San Salvador Island. They occur as isolated individual colonies, in patch reefs, fringing reefs, and barrier reefs. Stony corals are scleractinian anthozoan cnidarians (there are also non-scleractinian stony corals in the fossil record, such as tabulates and rugosans). They consist of individuals or colonies of gelatinous polyps that secrete hard skeletons of aragonite (CaCO3). Most scleractinian corals live in warm, tropical to subtropical, photic zone environments (the shallow portions of the world’s oceans where sunlight penetrates). Microbes (Symbiodinium - Protista, Dinoflagellata/Pyrrhophyta) called zooxanthellae live in their tissues and need to be in sunlight to make their own food (photosynthesis), which is shared with the host coral animal. Scleractinian corals have stinging cells (nematocysts) in their tentacles that paralyze prey. Diploria brain corals are easily identified by the presence of convoluted, labyrinthiform corallites. In Diploria labyrinthiformis, the convoluted ridges that make up the surface have a prominent median groove. The more commonly encountered species Diploria strigosa (see elsewhere in this photo album) lacks a median groove. Classification: Animalia, Cnidaria, Anthozoa, Scleractinia, Faviidae Locality: Snapshot Reef, Fernandez Bay, offshore western San Salvador Island, eastern Bahamas |
Date | |
Source | Diploria labyrinthiformis (grooved brain coral) (San Salvador Island, Bahamas) 1 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16107511066. It was reviewed on 3 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
3 May 2015
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Camera model | DC800 |
Exposure time | 1/240 sec (0.0041666666666667) |
F-number | f/5.5 |
ISO speed rating | 64 |
Date and time of data generation | 10:20, 5 January 2008 |
Lens focal length | 18.4 mm |
Camera manufacturer | SeaLife |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 17:25, 28 June 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 10:20, 5 January 2008 |
Meaning of each component |
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APEX shutter speed | 7.91 |
APEX aperture | 4.92 |
APEX exposure bias | 0 |
Maximum land aperture | 3.1 APEX (f/2.93) |
Metering mode | Center weighted average |
Light source | Flash |
Flash | Flash fired, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Saturation | Normal |
Sharpness | Normal |
Supported Flashpix version | 1 |
Image width | 2,716 px |
Image height | 2,100 px |
Date metadata was last modified | 13:25, 28 June 2009 |
IIM version | 2 |