ESPM 1011 Study Guide - Quiz Guide: Eutrophication, Gce Ordinary Level, Sustainable Seafood Advisory Lists And Certification

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biochemist27

8 Jul 2022

School

UMN

Department

Environment Sci, Policy, Mgmt

Course

ESPM 1011

Professor

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Document Summary

Note: while various additional optional resource links are provided on the canvas site, the exam will only cover material presented during the video lecture and items you have been directed to review on. What is aquaculture? fishery: fish, habitat, other aquatic organisms, fishers, harvesting fish through catching / raising. Water surface area is 71% of earth food source. 88% increase in inland fisheries, 5% increase in marine. 451% increase in aquaculture, 50% of production is from aquaculture. Power (diesel), boat size, depth of fishing, refrigeration, echo sounders and sonar, Number of motorized vessels inland: 90% consumed in developing world. Marine: used to have very small boats, stay close to port: be able to compare fish farming vs. farming for beef. Both high density, vaccinations fish maybe fed pesticides, beef aren"t. Overfishing: fisheries are increasingly overfished: imbalance in food web, fish disappear, jobs disappear. Exclusive economic zone: 200 miles within shore where country has control of water.

Related Questions

MUST BE IN YOUR OWN WORDS PLEASE!

Afforestation (also referred to as silviculture) is the landmanagement practice of planting commercially-valuable trees forlater harvesting on land that has been previously cleared andconverted for other use for a period of time.

Take a Side

Do the benefits of silviculture outweigh the ecologicaland environmental costs?

Note: Answering this may be simplest if youtake the perspective of a particular stakeholder; be that of acitizen, a local or state environment or natural resourcesrepresentative, lumberjack, water management district engineer,conservation biologist, town commissioner, etc.

periwinklecamel901

Watch this video on dissolved oxygen and answer the following questions (on back):

https://www.youtube.com/watch?v=oVW5LAzd7Ec

Question 5

Select one answer.

10 points

Which option lists three important greenhouse gases?

O3 (ozone), CFCs, and SO2 (sulfur dioxide)

nitrogen gas (N2), oxygen gas (O2), and carbon dioxide (CO2)

carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O)

Question 6

Select one answer.

10 points

Which best Starting in the 1950s, populations of Atlantic codwere heavily fished by highly efficient commercial trawlers.Catches started to decline in the 1970s and by 1990 several of thefisheries were completely depleted. Was the cod population arenewable resource when fished at that level? how impact changeswith development of technology?

Yes; plant and animal populations are always renewableresources.

No, because growth and reproduction of the fish couldnât keep upwith the harvest.

Question 7

Select one answer.

10 points

In a warming world, seasonal events are occurring earlier inspring and later in fall. Is this a significant problem?

Yes, because species respond differently. This can lead tomismatches between the life cycles of plants and pollinators,predators and prey, etc.

No, because all species are responding in the same way. Thegrowing season is longer, so species are likely to benefit fromthis change.

Question 8

Select one answer.

10 points

Which of the following is renewable and biodegradable?

A plastic flip-flop

A metal knife

A wooden Popsicle stick

A glass window

None of the above

Question 9

Select one answer.

10 points

What is biodiversity?

The variety of ecosystem types present within a region

Variation within a populationâs or speciesâ gene pool

The variety of life at all levels, including all of the otheroptions

Question 10

Select all that apply.

10 points

Which of the following are common benefits that humans get fromfunctioning natural ecosystems and the biodiversity that is foundthere? Select all that apply.

Grasslands and wetlands produce corn, wheat, rice and othergrain crops.

Forests prevent landslides and help protect coastlines fromstorm surges and tsunamis.

Most natural ecosystem types provide recreational opportunitiesfor hiking, wildlife watching, hunting, fishing, etc.

Mosquitoes and other disease vectors inhabit natural wetlandsand forests.

Diverse species contain countless biomolecules that may be usedas drugs or for other purposes.

ESPM 1011 Study Guide - Quiz Guide: Eutrophication, Gce Ordinary Level, Sustainable Seafood Advisory Lists And Certification

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