Importance of Coral Reefs in Coastal Areas
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Questions and Answers

What is the approximate annual fish and fishery products yield from one hectare of a healthy mangrove ecosystem?

  • 5.5 tons
  • 1.08 tons (correct)
  • 0.5 tons
  • 2.5 tons
  • Which of the following is NOT listed as a benefit of beaches in the text?

  • Source of nesting sites for turtles (correct)
  • Source of materials for construction
  • Source of prey for birds and fishes
  • Source of food for man (clams)
  • What ecological benefit is associated with beaches as per the text?

  • Meeting places for turtles
  • Source for materials (sand) for construction
  • Source of prey (clam, worms, etc.) for birds and fishes (correct)
  • Source of food for man (clams)
  • How much litterfall can one hectare of mangrove trees produce annually?

    <p>3.6 tons</p> Signup and view all the answers

    Which ecosystem provides a source of food for detritus feeders and prey for birds and fishes according to the text?

    <p>Sandy beach ecosystem</p> Signup and view all the answers

    What type of protection is NOT associated with mangrove ecosystems?

    <p>Protection from drought</p> Signup and view all the answers

    What is NOT mentioned as a benefit of mangrove trees in the text?

    <p>Alcohol production</p> Signup and view all the answers

    What is a direct economic benefit associated with sandy beaches, as mentioned in the text?

    <p>The source of sand for construction material</p> Signup and view all the answers

    One hectare of mangrove trees produces up to 4.6 tons of litterfall annually.

    <p>False</p> Signup and view all the answers

    Beaches do not serve as meeting places for turtles according to the text.

    <p>False</p> Signup and view all the answers

    Mangrove ecosystems do not provide habitat for polychaete worms and crustaceans.

    <p>False</p> Signup and view all the answers

    Healthy mangrove ecosystems produce less than 1 ton of fish and fishery products annually per hectare.

    <p>False</p> Signup and view all the answers

    Mangrove trees do not provide any commercial value according to the text.

    <p>False</p> Signup and view all the answers

    Shore protection is not listed as a benefit of mangrove ecosystems in the text.

    <p>False</p> Signup and view all the answers

    One hectare of a healthy mangrove ecosystem produces more than 1 ton of fish and fishery products annually.

    <p>True</p> Signup and view all the answers

    Honey production is not mentioned as a benefit associated with mangrove ecosystems in the text.

    <p>False</p> Signup and view all the answers

    Education is not listed as one of the benefits of sandy beaches in the text.

    <p>False</p> Signup and view all the answers

    Recreation/tourism is not an economic benefit mentioned in relation to sandy beaches in the text.

    <p>False</p> Signup and view all the answers

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