Coral Reefs ; Biology

by Jennielyoung
Last updated 6 years ago


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Coral Reefs ; Biology

Jenniel Young Alicia WilliamsKierra Prophet7th period

Deeper Info:Even though coral reefs ecosystems are among the oldest and most diverse on Earth , unique and valuable they have become one of the most threatened coastal ecosystems. As human population continues to increase so will the threats to reefs. Producers that are found in the coral reef are zooxanthellae, sponges etc. Primary consumers are mostly small fish, molluscs, coral polyps, clams. Secondary consumers like eels, crabs, starfish and octopus. Sharks are the iconic reefs' top predator and other species including tiger sharks, black-tipped reef sharks, and white-tipped reef sharks.

Primary Consmers- Samll fish, molluscs , coral polyps, clams and sponges.Producers- Zooxanthellae, sponges, seaweed corraline algae, marine worms, marine algae, plankton, phytoplankton. Secondary Consumers- eels , carbs, starfish and octupus.Predators- tiger sharks.

CarbonCarbon affects coral reefs because if there were no planys then animals would not be able to get the carbon that they need to survive.

Food Web.

Coral Reefs.

Mangroves: they are located in salt water ,helping to protect the coastline and preventing erosion.Seagrasses: found in shallow sheltered marine or estudrine water.

An aquatic ecosystem

WaterCoral reefs need a heavy stable environment, need tropical temperate, lots of sunshine and shallow water. The water cycle has a major impact on the coral reefs.

Salinity25 to 42 per cent. At the lower ens of the salinity tolerance range, corals can be killed by "freshwater". Salinity impacts to corals are increased by floos related stresses such as sedimentation, turbidity and increased ultraviloet radiation exposure.

NitrogenThe cycle of nitrogen does not negatively affect coral reefs because corals reefs have plants, just underwater.

Human ImpactPollution.

Light and nutrientsCorals Reefs are threatened by excess nutrients carried into the ocean from terrestrial and coastal zone, high leves of dissoved inorganic nutrients , nitrogen and phosphorus, reduces coral growth and calcification rates by 50%.

Phosphorus CycleThe phosphorous cycle in the ocean is controlled by mineral sources and biogeochemical remove mechanisms. In seawater inorganic phosphorous will make ion pairs with calcium and magnesium. High amounts of phosphorous in the water columns cause phytoplankton blooms, which are not always good.

Examples of OrganismsCoral organisms, called polyps, can live on their own, but are primarily associated with the spectacularly diverse limestone communities, or reefs, they construct. So many other organisms, like small fish, algae, etc. live on coral reefs because they enjoy the food and shelter it gives.



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