Textbook Problem

Section 9.5

Wha.t is the key concept for this section? Summarize the threats to aquatic biodiversity resulting from human activities. What is ocean acidification and why is it a major threat to aquatic biodiversity? Define fishery and summarize the threats to marine fisheries. Describe the major industrial fish harvesting methods. What percentage of the world’s commercial fisheries has been fully exploited overfished? Explain how jellyfish can upset marine ecosystems and how human activities affect jellyfish populations. Why is it difficult to protect marine biodiversity? What is a marine protected area? What is a marine reserve? What are three ways to protect marine biodiversity? What percentage of the world’s oceans is strictly protected from harmful human activities in marine reserves? Summarize the contributions of Sylvia Earle to the protection of aquatic biodiversity. Describe the role of restoration in protecting marine biodiversity. What are six ways to apply the ecosystem approach to protecting aquatic biodiversity?