the bathymetry project

The Bathymetry ProjectFeaturing the Olive

Ridley Turtle and the Harbor Seal

Bathymetry of Japan

Bathymetry Hawaiian Islands

Bathymetry Map of The West Coast

Stellwagen Bay Depth Chart

distance

Cordell Bank National Marine Sanctuary 30

km-150m

Stellwagon Bank National Marine Sanctuary 20

km-25m

Flower Garden Bank National Marine Sanctuary 15km -50m

Width (km) Depth (m)

The normal migration route for the Harbor Seal is they stay within the Continental Shelf, which is 500 km away from the slope of North America. The Harbor Seals swim within 50 meters to 100 meters feet below sea level. The reason they stay within the 100 meter distance

• Harbor Seal migration and distribution in the Northern Hemisphere from eastern North Pacific to southern California to Pribilofs.

• The pink shows seal migration/distribution during the summer.

• The purple shows the migration year round.

The seals mainly live in the North Atlantic and Artic oceans.

• The depths that the animal passes through when it is migrating stays about the same of which the depth it normally lives in.

• The depth in which it normally lives in is about 50-100 feet below sea level.

The Olive Ridley sea turtle lives in the Atlantic, Pacific and Indian Oceans. It prefers the shallow areas for feeding and sunbathing. Ocean pollution of plastic bags and other trash create a significant hazard for all the sea turtles. Coastal development, especially in the areas of nesting beaches which throw off too much light at night. This disrupts the internal timing mechanisms of the hatchlings that tell them it is dark enough to return to the sea.

The olive ridley turtle stays more towards land when it is laying its eggs but when its done it heads back into the deep water to feed and hide from predators.

THANK YOU

Slide Show By: Chandler Isaksen,

Blair Shultz, Erin Constantine, Anthony Fiorica, Kaitlyn Raub and Maddison Finan