1. Forests and Fisheries Science 11.3

2. Standard  S 6.6b Students know different natural energy and material resources, including air, soil, rocks, fresh water and forests and know how to classify them as renewable or nonrenewable

3. Language of the Discipline  Renewable resource  Clear cutting  Selective cutting  Sustainable yield  Fishery  aquaculture

4. Renewable resource  Always available or is naturally replaced in a relatively short time  Non-renewable- it cannot be replaced or is not always available

5. Forest Resources  Valuable resources  Frusits  Seeds  Maple syrup  Rubber  Nuts  Lumber  Wood pulp for making paper

7. All required to be cut down  Coniferous (pine and spruce)  Construction and for making paper  Hardwoods  Ash, Cherry, Maple  Furniture because of strength and beauty  Trees help prevent flooding and control soil erosion  Roots absorb rainwater and hold soil in place

9. Managing Forests  300 million hectares of forests  New trees can be planted to replace trees that are cut down, forests can be renewable resources  People are trying to maintain forests and to conserve them.

10. Logging Methods  Clear cutting- cutting down trees in an area at once  Quicker, cheaper, safer for loggers, ecosystem changes and soil is exposed  Selective cutting- cutting down only some trees in a forest and leaving a mix of tree sizes and species behind.  Move heavy equipment and logs around remaining trees, less damaging

12. Sustainable Forestry  Sustainable yield is an amount of a renewable resource such as trees that an be harvested equally without reducing the future supply  Planting a tree to replace one that was cut down  Trees must be planted enough to keep a constant supply  Harvest different sections at a time

13. Fisheries  An area of ocean with many valuable ocean organisms  Managing fisheries  Fishing limits  Hanging fishing methods  Developing aquaculture techniques  Finding new resources

15. Fishing Limits  Laws  Ban fishing certain species  Limit the number or size of a fish  Require that fish be within a certain range of sizes  Young fish survive long enough to reproduce

16. Fishing Methods/ Aquaculture  Nets to allow small young fish to escape  Outlawed methods  Poisoning with cyanide  Stunning them with dynamite  Aquaculture  Raising fish and other water dwelling organisms for food  Salmon, catfish, shrimp in artificial ponds or bays

17. New Resources  9,000 different fish species are harvested for food  Fish for new species  Scientist and chefs are trying to introduce people to keep water species such as monkfish and tile fish and tilapia.

18. Checking for Understanding  What is aquaculture  What is sustainable yield?  What is renewable resource?  What is a nonrenewable resource?

19. Guided Practice/Independent Practice