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Oceans - The Undersea World Bethany Mrs. Neyland - pd.4 5/4/01 Ocean Facts Oceans are interconnected bodies of salt water. They cover 70.8% of the Earth’s surface or 139,782,000 sq. miles.(97% of all water) Floor spreads at a rate of 2 in. per year.

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bethany mrs neyland pd 4 5 4 01

Oceans - The Undersea World

Bethany

Mrs. Neyland - pd.4

5/4/01

ocean facts
Ocean Facts
  • Oceans are interconnected bodies of salt water.
  • They cover 70.8% of the Earth’s surface or 139,782,000 sq. miles.(97% of all water)
  • Floor spreads at a rate of 2 in. per year.
  • The shapes of the continents and oceans are changing.
  • In an ecosystem (like the ocean) there are 4 abiotic (non-living) factors:W,So,Su, and A.
animals moon jellyfish biotic
Animals - Moon Jellyfish ( Biotic)
  • 3’’ high & 16’’ wide
  • Umbrella shaped and translucent
  • Have stringy tentacles
  • Feeding tube-short and expands
  • M&F- Specific Colors
  • Characteristics are Adaptations for life
moon jellyfish habitat
Moon Jellyfish - Habitat
  • The Moon Jellyfish floats near the surface just off the shore.
  • The habitats range from the Atlantic to Florida and Mexico plus Alaska to Southern California.
animals lined seahorse
Animals - Lined Seahorse

-5’’ and has a vertical compressed body w/ camouflage. Is a Biotic organism. Color is light brown, gray, etc. (speckled w/ white or gold dots) Dorsal Fin is like a fan. Very poor swimmers (H20) Its color, body, etc. are its adaptations.

lined seahorse habitat
Lined Seahorse - Habitat

The Lined Seahorse is usually around vegetation like eelgrasses and sargassum. The habitats range from Nova Scotia to Argentina plus Bermuda and the Gulf of Mexico.

more on the hammerhead
More on the Hammerhead

NJ-----------S. Brazil

13’ and 9’’

slide10

S

Sand

500’

C

P

O

A

L

L

Low Tide

Rock

golf of mexico climate
The climate can change from tropical to subtropical.

Hurricane season is from June 1 to Nov. 1

GoM = Gulf of Mexico

Ocean and weather conditions are good for forming hurricanes in this area.

Hurricanes spawned in the Atlantic can move through the gulf also.

Golf of Mexico - Climate
gom other facts
GoM - Other Facts
  • Major habitat for birds that winter along the coasts and islands
  • A lot of fish are along the continental shelf
  • Shrimps, shellfish, flounder, red snappers, mullet, oysters, and crabs are good food for humans.
gom human activity
GoM - Human Activity
  • The population generates sewage and wastes that go into fresh and salt waters.
  • Drilling brings oil spills that kill organisms.
  • Erosion has caused the sinking of wetlands.
gom human effects
GoM - Human Effects
  • Algae and oxygen depletion causes destruction to fish.
  • Pollution and filling have destroyed almost half of the gulfs man groves and coral reefs.
gom temperatures tidal range
GoM -Temperatures/Tidal Range
  • In Feb. it can be 64 degrees F in the N. and 76 degrees F in the S. or the Yucatan coast.
  • In the summer it can get to 90 degrees F but it usually stays the same.
  • The tidal range is small (Less than 2 ft.).
zones sealife
Zones - Sealife
  • Water column of the ocean is an ecosystem called the pelagic zone. Life forms in it are near the surface (a lot of light).
  • The neritic zone is the part that is above the continental shelves.
  • Finally, the littoral zone is along the shoreline (exposed to the air in certain times of the day - low tides).
zones by light
Zones - By Light
  • Surface waters = sunlight zone
  • Next level is the twilight zone - (supports at least 850 species of fish)
  • Deepest region is the dark zone - (no light)
slide20

Even with all our knowledge about the ocean, we still have a lot to learn in the future.

O

S

C

N

A

There are a lot of facts, including zones, food web, temperature, effects, animals, and more.

E

The ocean can be a very interesting ecosystem.

resources cited
Resources Cited
  • “eNature Online Field Guides.” www.enature.com. 23 April 2001
  • “Gulf of Mexico.” Britannica.com. 23 April 2001
  • Weigel, Marlene. Encyclopedia of Biomes. (Vol.2). Farmington Hills: The Gale Group, 2000.