My Watercolor Blog

July 19, 2017

Corals research for painting

Filed under: Uncategorized — Elizabeth @ 2:54 am

Below are all cited quotes (all as viewed this evening on the web) I collected for research for the 1st painting in series 2: Compassionate Awareness of Global warming and animal extinction 

Corals are in fact animals. The branch or mound that we often call “a coral” is actually made up of thousands of tiny animals called polyps. A coral polyp is an invertebrate that can be no bigger than a pinhead to up to a foot in diameter. http://floridakeys.noaa.gov/corals/coralanimals.html

Coral reefs are the most diverse of all marine ecosystems. They teem with life, with perhaps one quarter of all ocean species depending on reefs for food and shelter. This is a remarkable statistic when you consider that reefs cover just a tiny fraction (less than one percent) of the earth’s surface and less than two percent of the ocean bottom. Because they are so diverse, coral reefs are often called the rainforests of the sea…Corals have multiple reproductive strategies – they can be male or female or both, and can reproduce either asexually or sexually…individual coral polyps within a reef are typically very small—usually less than half an inch (or ~1.5 cm) in diameter…
the algae found in their tissues need light for photosynthesis and they prefer water temperatures between 70-85°F (22-29°C)…High water temperatures cause corals to lose the microscopic algae [ zooxanthellae ] that produce the food corals need—a condition known as coral bleaching.
http://ocean.si.edu/corals-and-coral-reefs
Orange-spotted filefish (Oxymonacanthus longirostris). The filefish dwells in coral reef habitats, on which it is totally dependent, and which themselves are declining in part due to climate change. In addition, the orange-spotted filefish is highly sensitive to warm water: The animal went extinct in Japan during an episode of warmer ocean temperatures in 1988.
http://news.nationalgeographic.com/news/2014/03/140331-global-warming-climate-change-ipcc-animals-science-environment/
Orange spotted filefish absorb and use chemicals in the Acropora coral they eat to take on its smell, which cloaks them from natural predators like cod. In addition to this trait, not observed among other vertebrates, they also use visual camouflage.[5] Wikipedia:
Oxymonacanthus longirostris (Harlequin Filefish)
Status: Vulnerable A3c ver 3.1
Pop. trend: decreasing
(The IUCN Red List of Threatened Species. Version 2017-1. <www.iucnredlist.org>. Downloaded on 19 July 2017.)
Actions:
A first step towards sponges conservation in the Mediterranean
03 July 2017
More than 300 experts attended the 10th World Sponge Conference held in the National University of Ireland, Galway from June 25th-30th to discuss the main areas in which sponge biology is developing at present, as well as traditional research categories.
http://www.iucnredlist.org/news/a-first-step-towards-sponges-conservation-in-the-mediterranean
Not overfishing and not polluting; go vegan and stop eating fish (and their toxins) for your health and to stop supporting an industry of killing.
“Fish play important roles on coral reefs, particularly the fish that eat seaweeds and keep them from smothering corals, which grow more slowly than the seaweeds. Fish also eat the predators of corals, such as crown of thorns starfish.”http://ocean.si.edu/corals-and-coral-reefs
Educating and documenting is an action that is happening.
Notes from the documentary Chasing Coral: in about 25 years the oceans would be too warm for corals to live. 29% (in one year, 2016) of the Great Barrier reef was bleached (some of that may still come back to life, as I understand it); this reef spans an area that would go all along the entire east coast of the US.
And I read somewhere these started growing 20,000 years ago (Smithsonian, http://ocean.si.edu/corals-and-coral-reefs)
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