Lecture 3

Question 1

Why is there this diversity in an area commonly called the marine equivalent of a desert?

Answer 1

The waters are oxygen-rich but oligotrophic (devoid of nutrients)

Question 2

What is the estimated amount of coral species?

Answer 2

1-3 million (only 10% described)

Question 3

What percentage of the world’s total surface is occupied by coral reefs?

Answer 3

0.17% (or about 600,000 sq mile)

Question 4

Charismatic Marine Megafauna

Answer 4

Not full-time inhabitant of the reefs, but often visit for food. They are NOT dependent on the reefs (ex: dolphins, sharks, whales)

Question 5

T/F: Geopolitical decisions are often based on environmental factors and not the monetary value of coral reefs

Answer 5

F

Question 6

What is the estimated values of coral reefs in USD?

Answer 6

$100,000 to $600,000 per sq kilometer

Question 7

In the Seychelles and Maldives, for example, what portion of some of these Pacific island nations’ revenue comes from the coral reefs?

Answer 7

1/3 to 2/3

Question 8

Characteristics of Reef Fisheries

Answer 8

1) Destructive if not done eco-friendly
2) Fish in local markets are often priced higher than common food staples (rice, beans)
3) It’s important to find balance for the use/preservation of reef fishing (ex: aquarium ref sponges can be extracted in a non-destructive way)