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CHAMP - Coral Spawning - NOAA's Coral Health and Monitoring Program
Also, with such high numbers ... gametes synchronously, there is a greater possibility that many different genetic combinations of a single coral species may form. This genetic diversity is an advantage when environmental conditions change and corals ...
www.coral.aoml.noaa.gov

CHAMP - Coral Reef Biology - NOAA's Coral Health and Monitoring Program
Herbivory is a vital component to the ecological balance of coral reefs. Fishes and sea urchins are responsible for limiting the density and spatial organization of ... itself appears as a black line a few millimeters wide across the surface of a coral colony. Black-band disease is caused by microorganisms, which produce anoxic conditions and hydrogen sulfide ...
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Glossary of Technical Terms
COENOSTEUM: common surface of corallum between calices COLUMELLA: central structure of the calyx formed by fusion of the septa CORALLUM (plural, CORALLA): skeleton of entire coral colony CORALLITE: skeleton produced by an individual polyp COSTA (plural, COSTAE): extensions of the septa outside the calyx unto the coenosteum PAPILLAE: rounded nipple-like projections covering the ...
coralreefnetwork.com

Coral reefs of Hawai'i
Hanau kana, he Ako'ako'a, puka" [Born the coral polyp, Born of him a coral colony emerged] -- Kumulipo, The Hawaiian Hymn of Creation, compiled by Rubellite Kawena ... seastar (Acanthaster planci) or cushion seastar (Culcita novaeguineae), both of which live by eating live coral. Butterflyfishes or are very common in this area especially threadfin butterflyfish (Chaetodon auriga), four-spot ...
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Mass coral bleaching - the result of simple food starvation?
The patchy occurrence of nutrient sources (zooplankton ... an insidious end result of all-fishing? Very interesting, very disturbing, the starvation of the coral reefs represents an important piece in the overall marine decline puzzle. Since they are not ...
fisherycrisis.com

Voyage to the Aleutian Islands: Understanding Alaska’s Deep Sea Frontiers
Amlia Island. This may be the first documentation of a king crab resting on a black coral colony, which is thought to be an important habitat. Photo: NOAA. (Bottom left) A gorgonian coral ( ... , diversity, and species composition was observed at a depth of approximately 1400 m. Deep-sea coral and sponge ecosystems found in the Aleutian Islands. Photo: Alberto Lindner, NOAA Fisheries. After two weeks, ...
www.nurp.noaa.gov

Deep-Sea Coral Research
Polyps extended from deep-sea coral colony Coral Systematics Imagine collecting a net full of fish and not being able to name ... to conserve these long-lived animals. Population Age Structure, Reproduction and Recruitment How old are coral colonies? When do corals spawn? What environmental changes trigger reproduction? How many new recruits survive ...
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The Wonders of the Seas: Cnidarians
In the Medusoid, the organism is essentially upside-down, ... the underwater world: JONATHAN BIRD'S BLUE WORLD The two different forms of a Cnidarian body. A coral colony consists of hundreds or thousands of tiny polyps. Each polyp is an individual animal (basically ...
oceanicresearch.org

Coral Reefs: Rainforests of the Sea script
This coral colony has in turn become a hiding spot for a school of Blue Chromis. ... expanding coastal populations worldwide. The needs and byproducts of these communities are causing increasing stress on coral reefs One of the biggest reef killers is something called sedimentation. Increasing coastal development and ...
oceanicresearch.org More from this site

Coral Reef Protection | Habitat Protection | US EPA
There are a number of stresses or environmental changes that may cause bleaching including ... credit: Charles Lobue, EPA Region 2, New York, New York Second photo: Close-up of coral polyps with tentacles extended. Photo credit: Charles Lobue, EPA Region 2, New York, New York ...
epa.gov