Monterey Bay National Marine Sanctuary Data Exercise

The Monterey Bay National Marine Sanctuary embraces more than one-quarter (approximately 350 miles) of the California coast. It spans approximately 5,300 square miles of coastal waters extending from Cambria (just north of Morro Bay) to Rocky Point (just north of San Francisco's Golden Gate Bridge), where it joins boundaries with the Gulf of the Farallones National Marine Sanctuary. Within its boundaries is a rich array of habitats, from rugged rocky shores, sandy seafloors and lush kelp forests to one of the deepest underwater canyons on the West Coast.

The richness of the ocean's harvest in Monterey Bay brought explorers to this area from many nations. The Spanish arrived in the late 1700's, establishing a pastoral lifestyle and an extensive network of missions, which relied heavily on livestock. Monterey was established as the region's capital under Spanish rule, and as a port through which cargoes were certified. The Spanish exported valuable otter pelts gathered by Russian and Indian hunters to Asia, Europe, and the Americas. New England whalers often hunted along the central coast in the late 1700's and early 1800's, feeding a voracious East Coast market for oil, baleen and meat.

A wealth of shipwrecks in the Monterey Bay National Marine Sanctuary are a result of the significant maritime exploration and trade which has occurred here, coupled with a coastline dotted with shallow, rocky headlands and largely exposed to fog, prevailing winds and storms. More than 140 shipwrecks have been documented in this region, and there are undoubtedly more that are not recorded. The shallow, rocky areas of Point Lobos, Cypress Point, Point Pinos and Santa Cruz have the highest known frequency of recorded shipwrecks for this sanctuary.

Data Exercise

Part 1: Be a Shipwreck Detective

Go to the Sanctuary Charts page, and print out the chart for the Monterey Bay National Marine Sanctuary. (This requires Adobe Acrobat Reader. Click here to download this for free).

Go to the Monterey Bay National Marine Sanctuary Shipwreck Database, and plot the shipwrecks listed in the data table by placing a small x and the shipwreck's name at the spot on the map where the latitude and longitude intersect.

1. Are there certain areas within your sanctuary that seem more prone to shipwrecks than others? Can you think of any reasons why this may be the case?
2. Are there certain times of year when there seemed to be more shipwrecks reported? Can you think of any reasons why this might be the case?
3. How many shipwrecks were reported in your sanctuary before 1942? How many were reported after 1942? Can you think of any reason for this difference?

Tips & Tools Other Bridge pages with related information:

The Bridge is supported by the National Sea Grant Office, the National Oceanographic Partnership Program, and the National Marine Educators Association. , Webkeeper © Sea Grant Marine Advisory Services Virginia Institute of Marine Science College of William and Mary Gloucester Point, VA 23062