I CAN: I CAN: DESCRIBE DESCRIBE THE THE CHARACTERISTICS CHARACTERISTICS OF OF

THE TWO TYPES OF THE TWO TYPES OF AQUATIC AQUATIC ECOSYSTEMS: ECOSYSTEMS:

FRESHWATER FRESHWATER & & MARINE.MARINE.

Freshwater Ecosystems

DECOMPOSE THE STANDARD:STANDARD: STANDARD: DESCRIBE DESCRIBE THE THE CHARACTERISTICS CHARACTERISTICS OF THE TWO OF THE TWO TYPES OF TYPES OF AQUATIC AQUATIC ECOSYSTEMS: ECOSYSTEMS: FRESHWATER FRESHWATER & & MARINEMARINE

I CAN: I CAN: _________________ _________________ THE THE __________________ __________________ OF THE TWO OF THE TWO TYPES OF TYPES OF _________________ _________________ ECOSYSTEMS: ECOSYSTEMS: _________________ _________________ & & ______________________________

A Lake Ecosystem

DEFINITIONFreshwater is water that contains very little salt

Freshwater EcosystemsEXAMPLESInclude: ponds, lakes, streams, rivers, and wetlandsNON-EXAMPLES:•OCEAN•ESTUARY

Characteristics of Aquatic EcosystemsFactors such as temperature,

sunlight, oxygen, determine where organisms live

Three groups of aquatic organisms include: Plankton - mostly SMALL organisms that float in water.

Nekton - are all organisms that swim

Benthos - are bottom-dwelling organisms.

Life in a LakeLittoral zone -shallow zone where light reaches the bottom most organisms live here.

Benthic zone - region near the bottom where decomposers live.

Wetland FactsAreas of land that are covered with fresh water

The two main types:1. Marshes - contain non-woody plants 2. Swamps - contain woody plants.

WETLANDS and OUR ENVIRONMENT

They act like filters that absorb and remove pollution

They control flooding by absorbing extra water

Habitat for many different organisms

Curriculum READING – CHAPTER 7FINISH READING AND ANSWERING QUESTIONS…

DUE BY END OF CLASS..

Marine Ecosystems

EstuariesDescription/Location is an area where fresh water from rivers mixes with salt water from the ocean.

Plants: plankton…weeds…Animals : fish, dolphins, oysters ,clams,

birds…etc.Services:

Provides area for fishingProtection from hurricanes..large storms

Salt MarshesDescription: a type of wetland that is

continually flooded Location: found in both temperate and

subartic regionsPlants: grasses, sedges, and other plants

that have adapted to continual, periodic flooding

Animals: Supports a community of clams, fish, aquatic birds, crabs, and shrimp.

Services: absorb pollutants to help protect inland areas.

Mangrove SwampsDescription: are tropical or subtropical marine

swamps that contain many mangrove trees.Location: Some are on the Southwest coast of

FloridaPlants: Salt loving Mangrove Trees and shrubsAnimals: Worms, crocodiles, wading birds,

pelicans, fish , shrimp, oysters…etcServices:

Help protect the coastline from erosion and reduce the damage from storms. They also provide a home for about 2,000 animal species.

Coral ReefsDescription: Limestone ridges with various plant and animal life

Location: Found in shallow clear warm ocean water.

Plants: Algae and sea grassesAnimals: jellyfish, crustaceans, sea snakes, sea stars, sea turtles, various fish

ServicesMost diverse ecosystems on Earth.Provide HABITATS for thousands of plants and animals

OceansDescription: The LARGEST biome of the

world..Covers 70 % of our beautiful planetLocation: Atlantic, Pacific, Indian, ArticPlants: Several types of water plants like

phytoplankton .Animals: Zooplankton (sea’s smallest

herbivores), jellyfish, sharks, various fish…whales. Etc..

Services:Contains plants that produce more 50% of the OXYGEN we breathe!

FishingBeaches

Coastal Wetlands areas that are covered by salt water for all or part of the time.

Provide habitat and nesting areas for many fish and wildlife.

BARRIER ISLANDS

Often run parallel to shores of beaches

Help protect the main lands from storms and ocean waves

Threats to Marine EcosystemsRunoff from fertilized fields and industrial

waste and sewage being discharged into rivers are major sources of ocean pollution.

Overfishing and certain fishing methods are also destroying some fish populations. Marine mammals can get caught and drown in the nets.

Some ships dump fishing lines or nets into the ocean where they can strangle and kill fish and seals.

SummarizeLabel the Pictures…that shows the different

Marine ecosystemsA.. IS __________________________________B… IS___________________________________C… IS___________________________________D… IS___________________________________E… IS___________________________________F… IS ___________________________________

MARINE ECOSYSTEM WEBQUEST

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