File:Dichocoenia stokesii (elliptical star coral) (San Salvador Island, Bahamas) 1.jpg
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[edit]DescriptionDichocoenia stokesii (elliptical star coral) (San Salvador Island, Bahamas) 1.jpg |
Elliptical star coral (Dichocoenia stokesii Milne Edwards & Haime, 1848) 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. Classification: Animalia, Cnidaria, Anthozoa, Scleractinia, Meandrinidae Locality: patch reef just west of Cut Cay, eastern Graham's Harbour, northeastern San Salvador Island, eastern Bahamas |
Date | |
Source | Dichocoenia stokesii (elliptical star 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@N05/15947538699. It was reviewed on 6 January 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 January 2015
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current | 23:59, 5 January 2015 | ![]() | 1,992 × 1,780 (1.06 MB) | FredD (talk | contribs) | {{Information |Description=Elliptical star coral (''Dichocoenia stokesii'' <small>Milne Edwards & Haime, 1848</small>) on a patch reef. Stony corals have a patchy distribution in the shallow marine waters surrounding San Salvador Island. They oc... |
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ISO speed rating | 80 |
Date and time of data generation | 10:54, 22 June 2010 |
Lens focal length | 18.6 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 20:54, 28 December 2014 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 10:54, 22 June 2010 |
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File source | Digital still camera |
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Supported Flashpix version | 1 |
Image width | 1,992 px |
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Date metadata was last modified | 15:54, 28 December 2014 |
IIM version | 2 |