noun: study of life in the ocean. Reefs occur in less than 1 percent of the ocean, yet are home to nearly one-quarter of all ocean species.These ancient structures make a perfect home for millions of species of fish, crabs, clams, starfish, squid, sponges, lobsters, seahorses, sea turtles, and more. Apex predators on coral reefs Submitted by editor on 8 April 2014.. Apex predators are large carnivores that occupy the top trophic level of food webs. These outbreaks may be a result of overfishing of the crown-of-thorns starfish’s primary predator, the giant triton or they may be a natural phenomenon. For the marine life, coral reef will help to recycle the nutrient, carbon and nitrogen fixing, source of nitrogen and another nutrient for the marine food chain, … These starfish are known to be more successful at preying on large swaths of coral reefs when the corals are already stressed. noun: substance an organism needs for energy, growth, and life. They may be a favorite for aquariums, but lionfish are a top predator along coral reefs. By far one of the most colorful and diverse groups of animals in the sea is that of the coral reef fishes. This is what scientists call a symbiotic relationship. Mar. Coral Reef Fishes. Globally, apex predators are assailed by disturbances such as persecution by humans. 6, 2019 — The health of coral reefs can be impacted as much by the diversity of fish that graze on them as by the amount of fish that do so, according to a new study. Lionfish are aggressive predators and threaten local … intermediate predator. Weather-related damage to reefs occurs frequently. Coral reefs face numerous threats. ocean. Large and powerful waves from hurricanes and cyclones can break apart or flatten large coral heads, scattering their fragments (Barnes & Hughes, 1999; Jones & Endean, 1976). noun: in a food chain or food web, an organism that eats (preys on) herbivores or other first-order consumers, but is preyed upon by top predators. A single storm seldom kills off an entire colony, but slow … Hundreds of species can exist in a small area of a healthy reef, many of them hidden or well … Coral reef fish are fish which live amongst or in close relation to coral reefs.Coral reefs form complex ecosystems with tremendous biodiversity.Among the myriad inhabitants, the fish stand out as colourful and interesting to watch. During times of coral bleaching or stresses … nutrient. Their extensive range of bright colors and bold patterns is virtually unmatched in the entire undersea kingdom. 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