A boater or diver affect coral reef is how is the gas that is wasted on the boat can get dumped into

1
How might a boater or a diver affect a coral reef

• A boater or diver affect coral reef is how is
  the gas that is wasted on the boat can get dumped
  into the water.
• By mistake divers can mess it up by taking pieces
  of the reef.

2
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How can we protect coral reefs

• We can protect coral reefs by protecting fresh
  water some, And also limit power plants because
  that also brings damage to the coral reef, avoid
  oil tanker spills in the ocean.

3
How can we protect coral reefs

• Do not dispose of trash or other toxic waste near
  coral reefs
• Ships should be anchored in sandy areas or tied
  to buoys instead of near coral reefs

4
Name at least five species that depend on coral
reefs, describing how each relies on the reefs
for survival.
Sea Urchins- feeds on sea grasses, algae, and
decaying organic matter Shrimp-controlling algae
and removing debris Jellyfish- passive drifters
that feed on small fish and zooplankton Sea
Turtles- eat sea grasses and algae Crabs- feeding
primarily on algae and taking any other food
including molluscs, worms, other crustaceans,
fungi, bacteria and detritus, depending on their
availability and the crab species.
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5
How Do Corals Reproduce?

• Asexual-new clonal polyps bud off from parent
  polyps to expand or begin new colonies
• Sexual-release massive numbers of eggs and sperm
  into the water to distribute their offspring over
  a broad geographic area the eggs and sperm join
  to form free-floating, or planktonic, larvae
  called planulae

6
Describe the physical characteristics of a coral
polyp

• The body looks like a tiny tube closed on one
  end.
• Inside the tube is the stomach.
• The closed end of the tube is called the base.
• The base is attached to a hard surface and the
  open end is the mouth with little tentacles that
  circle the mouth like a crown.
• Coral polyp colors can include red, orange,
  yellow, green, blue, purple, and white.

7
Why are coral reefs called the rain forest of
the sea?Raji Johal, B8

• Due to their astounding richness of life
• Due to their structural complexity corals are one
  of the most productive ecosystems on Earth

• Provides important services to mankind including
  fisheries, coastal protection, medicines,
  recreation, and tourism.

8
Describe the symbiotic relationship between coral
polyps and zooxanthellae (microscopic
algae). The relationship allows coral to
grow where there is enough sunlight and carbon
dioxide. This is also a useful way to monitor
environmental quality.
9
How Might a boater or a diver affect a coral reef?
A boater or a diver could most likely affect the
coral reef by touching the animals which may
cause disease or death to fragile animals bodies.
10
What is blast or dynamite fishing?

• Practice of using dynamite or other explosives to
  kill fish for fishing
• Destructive to the ecosystem, because it creates
  shockwaves that destroy coral reefs close to a
  coastline
• Dangerous for the fishermen
• The practice is found Southeast Asia, the South
  China Sea, the Aegean Sea and coastal Africa

11
Describe three human threats to coral reefs.

• Shockwaves caused by blast or dynamite fishing
  kill fish and are harmful to the coral reef
  environment.
• Human expansion causes freshwater runoff which
  carries pollutants and land waste which is
  harmful to the reefs.

• Live reef fish trade is a problem because life
  fish are taken away from their environment which
  impacts the reef ecosystem.

12
Where are coral reefs found?

• Coral reefs are found in clear, tropical oceans.
• Coral reefs form in waters from the surface to
  about 150 feet deep .
• They make up 1 of the ocean floor, but house 25
  of the life in the ocean floor because they need
  sunlight to survive.

13
How does a coral polyp grow?

• They require a high light level combined with a
  medium water movement
• For continued good health, they also require
  iodine and other trace elements from the water.
• They will reproduce in the reef by budding
  (splitting off a portion of their base or mouth),
  if adequate water quality parameters are
  maintained.

14
Why does over fishing affect the coral reef
communities

• Some coral can die because you are removing part
  of the food web.
• Some of them will overpopulate because their
  predators are being removed by fishing.

15
Q Why do so many animals live in and among reefs?
A Protection, Temperature, Food, Water Clarity,
16
Q Approximately how many species of plants and
animals (or percentage of the worlds species)
live among the coral reef?
A 25 percent of all marine life is found among
the coral reef.
17
How do people on land affect coral reefs?
HARM TO REEFS

• Divers who touch/take coral. Human touch to coral
  gives it bacterial infection which can kill the
  coral.
• Sedimentation soil run-off covers coral reefs,
  blocking sunlight needed (ex. Farming, mining,
  logging)
• Anchoring boats by/in reefs.
• Over fishing.
• Water pollution
• Global Warming increase in temp. coral looses
  algae needed and turn white and die. bleaching

AID TO REEFS..

• Conservation programs.
• Controlling pollution, and being informed will
  help the reefs.

18
Natural threats to coral reefs?

• One of the greatest threats to coral reefs is
  human expansion and development. Another one is
  the ferruginous runoff. Natural events also harm
  them.
• ByErik Martinez Luis cespedez

19
Describe the symbiotic relationship between coral
polyps and zooxanthellae (microscopic algae).

• The symbiotic relationship coral polyps and
  zooxanthellae is that coral polyps depend on
  zooxanthellae for life. It is said that
  zooxanthellae are probably responsible for the
  phenomenal success of corals as reef-building
  organisms in tropical waters. When subjected to
  high stress coral may lose their zooxanthellae.

20
Blast fishing

• A method of fishing which involves the use of
  dynamite or homemade explosives to quickly catch
  large numbers of fish.
• Used on coral reefs in Asia, Africa, the South
  Pacific, and the Caribbean, the effects are
  devastating to reef life.

21
Colony

• a group of coral polyps that takes the specific
  shapes of that species of coral

22
Algae

• Chiefly aquatic, eukaryotic one-celled or
  multicellular plants without true stems, roots
  and leaves, that are typically autotrophic,
  photosynthetic, and contain chlorophyll