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Neritic Zones Section 11.2 By: Kristie Boitnott & Ashley Haywood C11.2.4 Flashcard neritic zone the region between the continental shelf and the surface of the water most productive zone Coral Reefs • Reef- a natural structure built on a continental shelf. • Coral reefs are mainly found in warm, tropical waters. • 1/3 of all ocean fish live on or depend on coral reefs. • The ecology of a coral reef is a unique and fragile system. Flashcard C11.2.5 C11.2 reef (coral reef) the top layer of a coral reef a natural structure built on a continental shelf from the shells or skeletons of small sea animals is the only part that contains living organisms Flashcard C11.2.3 continental shelf the shallow border that surrounds the continents Coral Reefs (continued) • Because of the algaes need for sunlight coral reefs cannot grow below a certain depth. • Water Pollution is a major cause of coral reef damage. • Chemicals make water cloudy and reduce amount of light. Estuaries • Estuary-a region of water in which a freshwater source, usually the mouth of a river, meets salt water from the ocean. • Estuaries are partly enclosed but are still subject to the rise and fall of ocean tides. • Many marine organisms lay their eggs in the calm, warmer waters of estuaries. • Although estuaries are not as productive as coral reefs they are much more productive than the open ocean. Flashcard C11.2.6 estuary a region of water where a freshwater source meets salt water from the ocean often ringed by salt marshes Neritic Zone Productivity • Waters in Neritic Zones tend to be high in mineral nutrients. • Tides play a role in Neritic ecosystems. • The most important factor is that sunlight can reach the Benthic Zone of the continental shelf. Quick Quiz 11.2 QQ 1. 2. 3. 4. 5. 6. 7. 8. 9. Tends to be high in nutrients Freshwater meets salt water Mainly found in warm tropical waters Many marine organisms lay their eggs here Region between continental shelf and surface A unique and fragile system. Often ringed by salt marshes The shallow boarder Most important factor is that sunlight can reach the Benthic Zone 10. Water Pollution is a major cause of damage. A. Neritic Zone B. Continental Shelf C. Coral Reef D. Estuary Don’t Click! The End!