Chapter 11 – Sustaining Aquatic Biodiversity Graphic Organizer


Chapter 11

– Sustaining Aquatic Biodiversity Graphic Organizer

Pages 250 - 273

Name: _______________________________________________ Date: _______________ Assignment # __________

Directions: You must complete one question from each bold section (that would be 7 (seven), plus any other 3

(three) questions. 10 total questions must be answered. Circle the questions you choose to answer and number your paper with the question numbers. Staple this paper to the front of your answers.

Core Case Study

1) What are Cetaceans? What is the difference between toothed whales and baleen whales? Why are whales fairly easy to kill? What happened in 1946? What happened in 1970? What two countries killed the most whales between 1986 and 2010?

Section 11-1 (What are the major threats to Aquatic Biodiversity?)

2) What are the three general patterns related to marine biodiversity? What is the greatest threat to the biodiversity of oceans? What is the harm of trawling and dredging?

3) What is the harm of invasive species? What percentage of fish in the US has gone extinct due to invasive species? What can be the cost of invasive species? What is ballast water, and what might it have brought in to the US. What are the harmful effects of the Asian Swamp eel in Florida?

4) Explain in no less than 5 bullets what is occurring in Lake Wingra in Wisconsin?

5) What type of fish is Lake Victoria famous for? How many of these type fish have gone extinct? What are two

6) causes for this extinction.?

What percentage of the world’s population will live by the oceans in 2020? What do pollutants such as nitrogen cause

– should be two answers? What types of pollutants kill aquatic life forms? What is the effect of plastic garbage in our oceans?

7) What is sustainable yield? What % of sustainable yield are the oceans being harvested? What is commercial extinction? When might invasive species take over? Look at Figure 11-7, what type of fishing caused this fishery to decline?

8) Describe each type of commercial fishing methods: trawling, purse-seine, long lining, and drift netting.

9) What is the status of the Blue Whale? Explain in detail.

Section 11-2 ( How can we Protect and Sustain Marine Biodiversity?)

10) Give two reasons why protecting marine biodiversity is difficult. What is CITES?


What turtle faces extinction? Describe this turtle’s life cycle. How do many turtles die? How are these turtles being protected?


How far does a country’s offshore fishing zone exist? What extends beyond that zone? What are MPA’s and how many are there?

Section 11-3 (How Should we Manage and Sustain Marine Fisheries?)

13) What is the difference between maximum sustained yield and optimum sustained yield? What is multispecies management?

14) How do communities help with fish harvests? What are quotas? What other methods can be used to limit harvests? How can subsidies be detrimental? What are ITRs and how are they used?

Section 11-4 ( How Should we Protect and Sustain Wetlands?)

15) What are the two main types of wetlands? How are wetlands important? How many wetlands in the US have been lost since 1900? What may happen to coastal wetlands if global warming continues? If you were to fill of deposit dredge into wetlands what must you obtain? What is the zero net loss goal? What is mitigation banking?


Summarize the Case Study “Can We Restore the Florida Everglades” in no less 10 bullets.

Section 11-5 (How can we Protect and Sustain Freshwater Lakes, Rivers, and Fisheries)

17) Summarize the Case Study (Can the Great Lakes Survive Repeated Invasions by Alien Species) in no less than

10 bullets, be sure to include causes, species types,

18) How can rivers and streams be degraded? How many dams are located on the Columbia River? Where (location in the world) is the Columbia River? What is/was the purpose of the National Wild and Scenic Rivers Act? What are the three tiers of the classification scheme for National Wild and Scenic Rivers?

Section 11-6 (What Should be our Priorities for Sustaining Aquatic Biodiversity)

19) Summarize the six priorities for Sustaining Aquatic Biodiversity