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Coral Reefs and Human Activity Keerthi Potluri and Tina Stancheva Human Nature, Technology and the Environment April 15, 2003
Coral Reefs- Background ecosystem- high biodiversity types of coral reefs
Worldwide Distribution endemic to the Tropics
Structure of Coral Reefs hard skeleton- deposited CO 2 coral polyps zooxanthellae- microscopic algae
Habitat Requirements warm temperature- 20-28 O C sunlight for photosynthesis clear water high salinity, low CO 2 hard substrate
Importance preserve biodiversity potential scientific/medicinal use prevent erosion food source tourism
Anthropogenic Threats fishing human expansion sewage- nutrient-rich H 2 O invasive species pollution
Oil Spills direct damage bioaccumulation interruption of growth long recovery process
Natural Disturbances tropical storms hurricanes global warming- weather patterns levels of CO 2 ocean circulation
Bleaching loss of zooxanthellae small chance of recovery
What can we do to preserve coral reefs? more research control fishing restrict human development- mining, deforestation stop coastal water pollution establish marine reserves
Controversial Issues tourism- good and bad regulations on coral reef use natural recovery local vs. global damage
Average temperature changes Earths temperature increased by 1.5ºF during the 20 th century-Projections for warming suggest a global increase of 2.5ºF.
The Effects of Climate Change on Biological Diversity
Causes of Unbalanced Ecosystems
THE CHEMISTRY OF CORAL BLEACHING. WHAT IS A CORAL? CORALS ARE MARINE INVERTEBRATES (ANIMALS) THEY CAN TAKE MANY SHAPES! THEY USUALLY LIVE IN COLONIES.
Destruction of the Coral Reefs
Coral Reefs and their Marine Families Reef IQ.
Introduction to Coral Reefs Coral reefs are amazing, natural wonders that live in the warm waters of the tropics, providing habitat for thousands of marine.
Coral Reefs Warm, shallow, tropical ocean waters Warm, shallow, tropical ocean waters “Rainforest of the Sea” “Rainforest of the Sea” High production High.
Coral reef by Lyxchel Cummings. 109 countries have Coral reefs. The Great Barrier Reef is the largest Coral formation in the planet, it is located in.
Coral Reefs By: Alica Majercinova Geography 12.
-Gautam Sanka. What is a Coral? Coral is an animal in the phylum Cnidaria and class Anthozoa Coral exists in the ocean as polyps which are a form of life.
Coral Reefs. What is Coral? GIANT STRUCTURES built by tiny creatures GIANT STRUCTURES built by tiny creatures Some reef systems are so huge that they.
Coral Reefs. Facts about Coral Reefs Largest living thing on Earth Covers less than 1% of the Earth’s Surface Needs sunlight to grow.
Impacts of Climate Change on Coral reefs in the Caribbean Mrs. Marcia Creary.
HW # 107- Complete Coral Reef essay prompt (due Friday) Chapter 11 Exam Friday Warm up List 3 reasons why coral reefs are in danger. Week 32, Day Two.
The Coral Reef Ecosystem Coral Polyps & Zooxanthellae Zooxanthellae are dinoflagellates that live symbiotically within the corals. Zooxanthellae are.
Marine Ecology Coral reefs.
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