Exam 9: Oceans and Fisheries

________ provided for the agreement of nations to establish exclusive economic zones.

Oceans absorb ________ of anthropocentric carbon dioxide emissions.

Generally, nutrient concentrations ________ with depth because of the decomposition of organisms falling from the surface layer.

The oceans cover more than _________ of the Earth's surface.

This sequence is an example of a positive feedback loop: ________.

The most important fishing grounds in the world are all found within 200 nautical miles of coastlines.

Warm surface water that is cooled at high latitudes and then sinks to deeper basins is part of ________ circulation.

Global research indicates that virtually no region of the ocean is untouched by humanity, and more than _______ is heavily affected.

What are some of the concerns related to salmon aquaculture in British Columbia?

The Marshall decision was about ________.

Bycatch refers to ________.

Corals live only in tropical waters.

Endocrine disrupters have been found ________.

While ________ is a common practice in nature, in fisheries it leads to serial depletion.

The proportion of Canada's marine area designated as protected is ________.

As cold-water fish stocks move progressively northward in response to warming waters at lower latitudes, the Arctic Ocean is expected to become more and more attractive to commercial fishing fleets.

Approximately 30 per cent of the world's population lives in the coastal zone (within 100 kilometers of a coast).

________ has had the most negative impact on albatross populations.

Declines in Atlantic cod have been blamed on many factors, but current evidence suggests that the collapse was predominantly caused by ________.

Fishing down the food chain always means catching invertebrates.