Across
- 2. A limit on the quantity of fish that can be caught.
- 7. A catch, mark, release, recapture method of estimating animal populations.
- 8. A method of sampling invertebrates on the branches of bushes and small trees.
- 10. male, A method of insect pest control that uses the release of males that have been sterilised. If they mate, no offspring will be produced.
- 11. A crop that is grown around another crop to protect the neighbouring crop.
- 13. The process where a substance fixes onto a surface.
Down
- 1. Marine mammals including whales dolphins and porpoises.
- 3. A process that takes place in the presence of oxygen.
- 4. Sunlight that reaches a particular location.
- 5. A measure of the reflectivity of a surface.
- 6. A substance that is absorbed and transported throughout an organism eg by sap in plants.
- 9. The process of artificially transferring genetic material from one organism into an individual of another species
- 12. Planting trees to increase the area of forest.