FAST FACTS - Nicknamed The rainforests of the ocean due to high - - PowerPoint PPT Presentation

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Nov 16, 2023 439 likes •601 views

CORAL REEFS THE RAINFORESTS OF THE OCEAN Georgina Hayes PADI SI #411108 BSc Hons. Zoology FAST FACTS - Nicknamed The rainforests of the ocean due to high biodiversity - Cover less than 1% of the ocean but support 25% of all marine

SLIDE 1

CORAL REEFS

THE RAINFORESTS OF THE OCEAN

Georgina Hayes

PADI SI #411108 BSc Hons. Zoology

SLIDE 2

FAST FACTS

Nicknamed “The

rainforests of the ocean” due to high biodiversity

Cover less than 1% of the
cean but support 25% of

all marine life

Largest structures on earth
f biological origin
Close relatives of anemone

and jellyfish!

(Rick Stuart Smith, 2018)

SLIDE 3

TYPES OF CORAL REEF

Time (Millions of years)

(GBRMPA, 2017)

SLIDE 4

STRUCTURE OF CORAL

(AUSMEPA.org, 2019)

SLIDE 5

HARD CORAL

(practicalfishkeeping.org, 2017) (Wikimedia commons, 2007)

The architects of coral reefs
Produces hard calcium

carbonate exoskeleton

Need zooxanthellae to survive
Shape on height depends on

both species and location conditions – flat and strong vs tall and intricate

SLIDE 6

SOFT CORAL

(diveplanit.com 2019) (Oregon Coast Aquarium 2019)

Have an internal skeleton

which connects to sea bed

Internal skeleton has wood

like texture

Soft and bendable
Non-reef building corals

referred to as ahermatypes

Do not always contain

zooxanthellae

SLIDE 7

WHAT IS CORAL BLEACHING?

(Catlin Seaview survey 2016)

19% of the worlds coral reefs have already been lost 15% is seriously threatened in the next 10-20 years

(GBRMPA 2017 data)

SLIDE 8

(NOAA 2018)

SLIDE 9

(Georgina Hayes, 2018) (source unknown)

ADDITIONAL BLEACHING CAUSES

SLIDE 10

(The Green Fins)

SLIDE 11

(The Green Fins)

SLIDE 12

WANT TO FIND OUT MORE?

https://ocean.si.edu/ocean-life/invertebrates/corals-and-coral-reefs
https://www.livescience.com/40276-coral-reefs.html
https://coral.org/
https://www.coraltrianglecenter.org/

SLIDE 13

ANY QUESTIONS?

SLIDE 14

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