1. Marine Resources
Commercial Fishing in Alaska.

2. Marine Resources Through History
Trade/ Shipping
Desalinization
Whaling
Fur Trade

3. Renewable Resources
Replaced by organisms, the sun or other natural processes
Wave Energy
Water
Desalinization
refers to the removal of salts and minerals
Fisheries

4. Non-Renewable Resources
Not replaced by natural processes (within a human lifetime)
Fossil Fuels
Minerals
A salt farm.

5. Biological Resources-are important to society for the various services they provide, as well as problems they may create.
Involve Biological Processes
Kelp-supplements-iodine
Fish-Food
Marine Mammals
Dolphins-The Cove
Seals-oil, food
Sea lions-aggressive

6. Fisheries
Typical evolution of ocean fisheries

7. Physical Resources Do not involve biological processes Oil
Natural Gas (Methane)
Minerals
Energy

8. Whaling Meat, Blubber Revolutionized in 1868 with harpoon cannon
1960’s – spotter airplanes, sonar
1946 – International Whaling Commission (IWC)

9. Whaling (con’t.) 1986 – Moratorium
Banned because many species were in danger of becoming extinct
Whaling still occurs in some places
Japan
Norway
Canada, Alaska, Greenland, Russia

10. Tuna Fishing 1972 - U.S. Marine Mammal Protection Act
1988 – U.S. Congress
banned all tuna imports from nations that do not follow USMMPA-United States Marine Mammal Protection Act
Dolphin - Safe Tuna
Consumers boycotted tuna from companies that did not practice dolphin-safe fishing.

11. Human Impact
PSA

12. 12.06 How is Algae used commercially?
Food
(Biological Resource)
Algin
Thickening
Agar

13. 12.07 Mariculture Marine aquaculture/Biotechnology
Algae, finfish, shellfish
Racks, pens and cages
Pros
Supplements wild-caught seafood
Produces food, cosmetics, pharmaceuticals
Provides jobs
Cons
Crowded Conditions
Concentrated Wastes
Antibiotics
Fish Escapes of genetically
modified species/invasives

14. A coastal fish farm.

16. An offshore tuna farm.

17. 12.08 Commercial Fishing
Fish Markets
Grocery Stores
Restaurants

18. 12.08 Declining Trends in Various Fisheries
Orange Roughy
Atlantic Cod
Swordfish
Atlantic Blue Fin Tuna
Sharks
Grouper
Atlantic Cod (Gadus morhua)

19. 12.09 Maximum Sustainable Yield= Endless Supply?
The amount of a resource that can be harvested so that the population can survive for the future
OVERFISHING Catching more fish than the maximum sustainable yield

20. 12.10 Factory Ships Large ships that process and package fish at sea
Prevent trips inshore for fishing boats
More time at sea = more fish caught

22. The End…