1. AQUACULTURE http://www.nmfs.noaa.gov/aquaculture/
Extensive, Semi Intensive and Intensive

2. AQUACULTURE
Aquaculture: The cultivation of seafood under controlled conditions.
Extensive, Semi Intensive and Intensive

3. AQUACULTURE Which ones are extensive examples?
Extensive, Semi Intensive and Intensive
Which ones are extensive examples?

4. AQUACULTURE Which ones are extensive examples?
Extensive, Semi Intensive and Intensive
Which ones are extensive examples?

5. AQUACULTURE SEMI Which ones are intensive examples?
Extensive, Semi Intensive and Intensive
Which ones are intensive examples?

6. Dirty Jobs, Fish Farm https://www.youtube.com/watch?v=o8s1JNQxnU8
Watch the clip on the fish farm.
Where is this?
Would you classify it as intensive of extensive? Why?
What are some concerns on the fish farm, and with aquaculture in general?

7. Why Do Farmers Face Economic Difficulties?
Challenges for subsistence farmers
Population growth
International trade
Drug crops

8. Drug Trade
Columbia, Peru, Bolivia
Afghanistan
Figure 10-27

9. Source, United Nations: Poppy Field in Afghanistan

10. Heroin Highways NBC New Video
Herointown, NJ, NJ.com Article

11. Why Do Farmers Face Economic Difficulties?
Challenges for commercial farmers
Overproduction
Agricultural efficiencies have resulted in overproduction
Demand has remained relatively constant
As a consequence, incomes for farmers are low
Sustainable agriculture
Sensitive land management
Integrated crop and livestock

12. Why Do Farmers Face Economic Difficulties?
Strategies to increase food supply
Expanding agricultural land
Desertification

13. Four strategies to increase food supply
1. Expanding the land under cultivation
Remaining land can be of poorer quality
2. Increasing the productivity of existing agricultural land
Requires energy- and resource-intensive fertilizers and machinery
3. Identifying new food sources
Subject to cultural preference
4. Increasing trade

14. Increasing productivity
The Green Revolution

15. Agricultural Land and Population!
Figure 10-28

16. Since the 1980s, population has increased more rapidly than food production.

17. Food production in the region has tripled over the past half-century, but population has grown faster.

18. Food production in the region has tripled over the past half-century, but population has grown faster.

20. Identifying new food sources
Cultivating Oceans
Increase in annual Fish Catch
Over the past half century, the world fish catch has increased nearly five times over.

21. Identifying new food sources
Developing High Protein Cereals
Improving the Palatability of Foods
Exoskeleton to be removed
Frozen almost immediately
An acquired taste!

23. People in MDCs obtain protein by consuming meat, but people in LDCs generally rely on wheat, corn, and rice, which lack proteins.

24. Where Weed-killer Won’t Work

25. Grain Imports and Exports
Figure 10-32

26. http://green. blogs. nytimes
The Global Food Crisis, Mapped