BIO-1151 Chapter Notes - Chapter 8: Photosynthesis, Tillage, Marine Protected Area

123 views6 pages
12 Apr 2017
Department
Course
Professor

Document Summary

Ocean management challenges: the oceans are crucial to the way in which planetary ecosystems work and to the functioning of human society, the main management challenges facing ocean ecosystems are a result of fisheries and other human activities. Fisheries: the most important fishing grounds in the world are found on and along continental shelves within fewer than 370 kilometres of the shore, global annual per capita fish consumption has risen and approx. One of the most destructive means of fishing in which heavy nets are dragged along the sea floor, scooping up everything in their path. Climate change: as a result of global warming, sea levels rose an average of 1. 5 mm per year between. In 1989, the minister reduced the total allowable catch (tac) for northern cod to. In the early 1990s, most older fish had been overharvested: the consequence was a dramatic decline in the fish stock.