APES Ch. 11 Reading Guide

Last updated over 3 years ago

26 questions

Last updated over 3 years ago

26 questions

Sustaining Aquatic Biodiversity and Ecosystem Services
11-1: What are the major threats to aquatic biodiversity and ecosystem services?

What are three general patterns related to marine biodiversity?

Draggable item		Corresponding Item
Purse-Seine fishing		Individuals catch fish one or two at a time; one of the oldest methods of fishing with the lowest rate of by-catch.
Pole-fishing		large circular nets used to catch surface-dwelling fish; often trap and kill dolphins as by-catch.
Long-lining		lines of baited hooks many miles long are pulled behind fishing boats; many types of organisms, including sea turtles, dolphins and sea birds are killed by this method
Trawling		large nets hung as deep as 50 feet below the surface and may be up to 40 miles long; trap an amount of bycatch as much as 1/3 of total weight of annual fish, then thrown overboard dead or dying
Drift-net fishing		some in the water, some along the bottom, these large scooping nets are dragged behind the fishing vessels and have destroyed vast areas of ocean-bottom habitat.

11-2: How Can We Protect and Sustain Marine Biodiversity?

11-3: How Should We Manage and Sustain Marine Fisheries?

Draggable item		Corresponding Item
Consumer Information		Use nets that allow escape of unintended species
Bycatch		Restrict locations of fish farms, improve pollution control
Protection		Set low catch limits, improve monitoring/enforcement
Aquaculture		Label sustainably harvested fish; publicize overfished species
Fishery Regulations		Reduce/Eliminated fishing subsidies
Economic Approaches		Establish no-fishing areas/protected marine areas
Nonnative Invasions		Kill or filter organisms from ship ballast; clean aquatic recreation gear

11-4: How Should We Protect and Sustain Wetlands?

11-5: How Should We Protect and Sustain Freshwater Lakes, Rivers, and Fisheries?

11-6: What Should Be Our Priorities for Sustaining Aquatic Biodiversity?

Critical Thinking Questions