2.02 Coral Reefs

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The pH scale measures the amount of positive or negative ions are present. Acids have a higher concentration of positive ions. Bases have a higher concentration of negative ions.

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A pH of 0-6 is considered

A pH of 8-14 is considered which means it is slightly

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Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.
Lower pH levels dissolve carbonate.
How will ocean acidification will impact coral reefs?

More CO2 helps corals grow faster and makes reefs stronger

Corals build weaker skeletons, so reefs grow less and may break down

Ocean acidification only affects oysters, not corals

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Reflect on your understanding of the learning objectives:

	Analyze the relationship between corals and algae and the impact coral bleaching has on biodiversity
	Predict how increased acidity in the oceans affects corals and shellfish

Reflect on your mastery of the success criteria:

	Explain how corals and algae help each other and identify the effects of corals losing their algae
	Explain the effect of lower pH on coral skeletons and shellfish

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2.02 Coral Reefs

2.02 Coral Reefs

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.
Based on the map, where are coral reefs usually found? Select all that apply.

The video describes coral reefs as "important havens of biodiversity."
Based on the video, which is the best definition for biodiversity?

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.
Lower pH levels dissolve carbonate.
How will ocean acidification will impact coral reefs?

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.
Based on the map, where are coral reefs usually found? Select all that apply.

The video describes coral reefs as "important havens of biodiversity."
Based on the video, which is the best definition for biodiversity?

What causes the algae's chloroplasts to not work properly?

What color do coral turn when they "spit out" their symbiont algae?

What happens to corals that lose their symbiont algae?

Without zooxanthellae, corals appear white. This is known as coral bleaching.
Without living coral, many species lose their homes or die.
What is the main consequence of coral bleaching on a coral reef?

How has the increasing acidity of the ocean impacted baby oysters?

What factor is extremely important for baby shellfish to develop properly?

How has ocean acidification affected the Puget Sound oyster farmers?

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.
Lower pH levels dissolve carbonate.
How will ocean acidification will impact coral reefs?

What cell stucture allows the symbiont algae (zooxanthellae) to perform photosynthesis?

What causes the algae's chloroplasts to not work properly?

What color do coral turn when they "spit out" their symbiont algae?

What happens to corals that lose their symbiont algae?

How has the increasing acidity of the ocean impacted baby oysters?

What factor is extremely important for baby shellfish to develop properly?

How has ocean acidification affected the Puget Sound oyster farmers?

2.02 Coral Reefs

2.02 Coral Reefs

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.Based on the map, where are coral reefs usually found? Select all that apply.

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.Lower pH levels dissolve carbonate.How will ocean acidification will impact coral reefs?

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.Based on the map, where are coral reefs usually found? Select all that apply.

Without zooxanthellae, corals appear white. This is known as coral bleaching.Without living coral, many species lose their homes or die.What is the main consequence of coral bleaching on a coral reef?

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.Lower pH levels dissolve carbonate.How will ocean acidification will impact coral reefs?

What cell stucture allows the symbiont algae (zooxanthellae) to perform photosynthesis?

What causes the algae's chloroplasts to not work properly?

What color do coral turn when they "spit out" their symbiont algae?

What happens to corals that lose their symbiont algae?

How has the increasing acidity of the ocean impacted baby oysters?

What factor is extremely important for baby shellfish to develop properly?

How has ocean acidification affected the Puget Sound oyster farmers?

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.
Based on the map, where are coral reefs usually found? Select all that apply.

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.
Lower pH levels dissolve carbonate.
How will ocean acidification will impact coral reefs?

Although coral reefs cover less than 1% of Earth’s surface, they are among the most diverse and influential ecosystems on the planet. Reefs provide resources for many species, including significant benefits for humans.
Based on the map, where are coral reefs usually found? Select all that apply.

Without zooxanthellae, corals appear white. This is known as coral bleaching.
Without living coral, many species lose their homes or die.
What is the main consequence of coral bleaching on a coral reef?

Marine organisms like coral and shellfish use carbonate to form their shells and skeletons.
Lower pH levels dissolve carbonate.
How will ocean acidification will impact coral reefs?