Chapter 7 Section 2 Environmental Science Ms. Mandel.

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Marine Ecosystems Chapter 7 Section 2 Environmental Science Ms. Mandel

Transcript of Chapter 7 Section 2 Environmental Science Ms. Mandel.

Marine EcosystemsChapter 7 Section 2

Environmental Science Ms. Mandel

Learning TargetsI can define a marine ecosystem.I can differentiate between the different types of marine

ecosystems.Coastal wetlandsEstuariesSalt marshesMangrove swampsRocky and sandy shoresCoral reefsOceansArcticAntarctic

Coastal WetlandsCoastal land areas that are

covered by salt water for all or part of the time

Provides habitat and nesting areas

Absorbs excess rainProtects areas from

floodingFilters out pollutants and

sedimentsRecreational areas

BoatingFishingHunting

water.epa.gov

EstuariesArea in which fresh

water from a river mixes with salt water from the ocean

Considered to be a nutrient trap due to the mixing of the waters

Very productive ecosystem

Land masses protect them from the force of the ocean waves

Estuary Video

EstuariesSupport many

marine organismsPlenty of nutrients

PhytoplanktonBirdsClamsCrabsPlantsFish

ThreatsSewageIndustrial wasteAgricultural runoffHuman population

growth

Coral ReefsOne of the most

diverse ecosystems on earth

Fragile ecosystemWater cannot be too

hot, too cold, polluted, muddy or high in nutrients

What happens if this occurs?

Algae dies and coral bleaching happens

coralbleachingthefacts.blogspot.com

Coral Reefs in DangerWhy are coral reefs

in danger?Human activitiesGlobal warmingOil spillsPollutionOverfishing

Why is it important to not stress out or destroy a coral reef?

They grow back slowly and may not be able to repair itself

OceansOne of the least

productive of all ecosystems

Why?Not enough light and

nutrients for the phytoplankton

Depths of the ocean are perpetually darkMost food at the

ocean floor consists of dead organisms that fall from the surface

ThreatsPollution from

activities on landOverfishing

www.exploringnature.org

Learning Target CheckpointsWhat is a marine ecosystem?How do you differentiate between the different

marine ecosystems?Coastal wetlandsEstuariesSalt marshesMangrove swampsRocky and sandy shoresCoral reefsOceansArcticAntarctic