STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate...

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STATE OF THE CORAL REEFS IN TOBAGO By Rachael Amoroso Junior Research Fellow INSTITUTE OF MARINE AFFAIRS

Transcript of STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate...

Page 1: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

STATE OF THE CORAL REEFS IN TOBAGO

By Rachael Amoroso

Junior Research Fellow

INSTITUTE OF MARINE AFFAIRS

Page 2: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

WHAT ARE CORAL REEFS

Corals

Corals are

animals

Polyps contain

zooxanthellae

Hard

corals

Soft corals

Slow

growing

Page 3: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

IMPORTANCE OF CORAL REEFS

• Essential source of food to coastal

communities

• Source of income through

• Direct tourism –diving tours, hotels,

restaurants, transportation, retail

etc

• Indirect tourism – services

provided to those involved in direct

tourism

• Buffer shorelines from erosion

• Source of potential medicines

Page 4: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

THREATS TO CORAL REEFS

Man-made threats

• Climate change

• Sea temperature rise

• Ocean acidification (lowered pH)

• Sea level rise

• Pollution

• Sedimentation

• Runaway tourism

• Overfishing

• Invasive species

• Lionfish

Natural threats

• Weather events

• Coral disease

• Human activities exacerbating

natural occurring disease

Flickr.com

Photolib.NOAA.gov

Flickr.com

Page 5: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

STATUS OF THE REEFS

Healthy

reef with

high coral

cover,

Culloden

Tobago

Low coral cover,

Outer reef

Buccoo

0

5

10

15

20

25

30

35

40

45

OR WR CUE CUW

Mea

n %

co

ver

Hard coral cover at 4 reefs in Tobago

2010 2011 2012 2013 2014 2015 2016 2017

Page 6: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

Sponge eroding coral

POTENTIAL CHANGES TO REEFS

Page 7: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

CORAL DISEASESBlack-band disease

Aspergillosis in soft corals

Yellow-band disease

Dark spot disease

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CORAL DISEASES

Pifs.NOAA.gov

Underwater transects

MSC colony infected with yellow-band

disease

Healthy mountainous star coral

Page 9: STATE OF THE CORAL REEFS IN TOBAGO - IMA€¦ · THREATS TO CORAL REEFS Man-made threats •Climate change •Sea temperature rise •Ocean acidification (lowered pH) •Sea level

•THANK YOU•

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INFORMATION CENTRE Tel: 634-4291 ext. 2406 or 2408

E-Mail: [email protected] or [email protected] ima.gov.tt

@IMACHAG


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