File:Manicina areolata (rose coral) (San Salvador Island, Bahamas) 2 (15472166633).jpg
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Summary
[edit]DescriptionManicina areolata (rose coral) (San Salvador Island, Bahamas) 2 (15472166633).jpg |
Manicina areolata (Linnaeus, 1758) - rose 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. The rose coral in the above photo has slender tentacles that are retracted into grooves during the day. At night, the coral extends its tentacles and feeds. Classification: Animalia, Cnidaria, Anthozoa, Scleractinia, Faviidae Locality: southeastern Graham's Harbour, northeastern San Salvador Island, eastern Bahamas |
Date | |
Source | Manicina areolata (rose coral) (San Salvador Island, Bahamas) 2 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15472166633. 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 manufacturer | OLYMPUS IMAGING CORP. |
Camera model | u1030SW,S1030SW |
Exposure time | 1/250 sec (0.004) |
F-number | f/5 |
ISO speed rating | 80 |
Date and time of data generation | 14:57, 21 March 2009 |
Lens focal length | 5 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 21:32, 23 December 2014 |
Y and C positioning | Co-sited |
Exposure Program | Creative program (biased toward depth of field) |
Exif version | 2.21 |
Date and time of digitizing | 14:57, 21 March 2009 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 3.61 APEX (f/3.49) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Supported Flashpix version | 1 |
Image width | 1,881 px |
Image height | 1,518 px |
Date metadata was last modified | 16:32, 23 December 2014 |
IIM version | 2 |