coral reef
gregladen | April 20, 2016Corals are ocean-dwelling invertebrates in the same phylum as jellyfish. Corals are tiny and create an exoskeleton that is fixed to something hard, like the remains of previously existing corals. So these organisms build up a geological stratum, a reef, beneath the surface of the sea, often close enough that parts of the reef are exposed at the lowest water level. The coral reef system is the substrate for one of the Earth's major ecological zones.
Corals are symbiotic with a single celled dinoflagellate, a kind of algae that combines available nutrients such as ammonia and the…
gregladen | October 8, 2015This just out from NOAA:
As record ocean temperatures cause widespread coral bleaching across Hawaii, NOAA scientists confirm the same stressful conditions are expanding to the Caribbean and may last into the new year, prompting the declaration of the third global coral bleaching event ever on record.
Waters are warming in the Caribbean, threatening coral in Puerto Rico and the U.S. Virgin Islands, NOAA scientists said. Coral bleaching began in the Florida Keys and South Florida in August, but now scientists expect bleaching conditions there to diminish.
“The coral bleaching and disease,…
grrlscientist | March 3, 2008tags: coral reef, shark, subway art, AMNH, NYC, NYCLife
Coral Reef with shark
as portrayed in tiles on the stairway of the NYC subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008. [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
grrlscientist | January 26, 2008tags: coral reef, marine life, endangered species, Image of the Day
Seventeen countries have marked 2008 as the International Year of the Reef, a worldwide campaign to raise awareness about the importance of coral reefs and to motivate action to protect them.
Image: S. Zumbrunn, Conservation International. [larger size].