Coral reefs are naturally colorful ecosystems found in clear, tropical oceans like Australia. They support thousands of species but are threatened by pollution, overharvesting, disease, and rising ocean temperatures and acidity caused by climate change. Coral reefs are home to algae, fish, mollusks, and other organisms in a complex food web where producers, primary consumers, secondary consumers, and decomposers all interact.

1. Coral Reefs
BY: Lytzy Barron

2. Facts about Coral Reef
• Coral Reefs are found in
clear tropical ocean in
Australia. The average
temperature is 86
degrees Fahrenheit.
Coral Reefs are naturally
colorful because of the
algae. During spawning
season people like to
dive into the reef.

3. Factors of Coral Reef
• Abiotic Factors- Nonliving
factors that influences
ecosystems such as
temperature, light and
available nutrients.
• Biotic Factors- Plants and
bacteria are two other
major biotic. Bacteria
breaks down dead
organic and converted
into energy that can be
used by other living thing
in the ecosystem.

4. Food web and Food Chain
• Producer- Make it own food,
algae, sea plants and plankton.
• Primary Consumer- an animal that
feeds on plants, small fish,
molluscs, coral polyps, clams and
sponges
• Secondary consumers- a carnivore
that feeds only upon herbivores,
eels, crabs, starfish and octopus.
• Decomposer- an organism, esp. a
soil bacterium, fungus, or
invertebrate, fan worms and flat
fish
• Tertiary Consumers- a carnivore at
the topmost level in a food chain
that feeds on other carnivores

5. Cycles

6. Environmental Issues
• Coral reefs cover an area of over 280,000 km2 and support
thousands of species in what many describe as the
“rainforests of the seas. Coral reefs protect Shore from the
heave wave and storms. It also benefits human for example
food and medicine. Overharvest, disease, predation,
pollution and physical damage from boats. But the greatest
threat of all to coral reefs is carbon dioxide emissions from
burning fossil fuels. The more CO2 we spew into the air, the
greater the consequences of bleaching will be for coral
reefs. Corals face another ominous threat from the oceans
becoming more acidic as they absorb CO2 from the
atmosphere, and this means that corals will have difficulty
growing and building their protective skeletons as ocean
waters become more corrosive.

7. Sources
• https://docs.google.com/a/lexschools.org/doc
ument/d/1IaQHjYmqPFAgXYS94veVT4qL1QO_
N6XroOlbLA77KjY/edit