• In the majority of fish farms, there is only one species of fish kept in a tank or a pen. A False B True • Fish farms in seas have no negative implications on the surrounding water or ecosystems. A False B True
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- Questions 1 What was the impact of overfishing on the community of fishers? What was the impact of fishers invading the ocean used by other communities? 2 How does this activity relate to real fisheries and ocean issues? 3 What does the following quote mean? "In the end, our society will be defined not only by what we create, but by what we refuse to destroy." - John Sawhill, former President of the Nature Conservancy 4 How does this quote relate to fisheries? 5 What factors have not been included in this activity that impact real fisheries? 6 What happens to a resource when demands are high, so new technologies are introduced to increase efficiency, but the resource is finite? Explain. 7 How can a sustainable fishery be developed? What limitations should exist? How should it be regulated? 8 What are other commonly held resources, besides fisheries? What are issues that surround them? How can they best be managed?xtensions Help Calibri 1 100 1 0 1 J 11 Page 2: Remediating Water Questions U U + B M 1 Page 3: Eutrophication : Questions Cº U IUA 9 3 fs 1. Describe one change in farming practices that can reduce the effects of eutrophication. › » @ QE ✓ Œ = ✓ E • EYE L 1 2. Dead zones are areas in the world's oceans and lakes that are void of life due to low oxygen levels. Explain why dead zones are often located along heavily inhabited coastlines. 3. During heavy rainstorms, sewer systems in some older cities can be overwhelmed with water. This can result in raw sewage being discharged into nearby waterways. What impact might this discharge have on the waterway? 19 4. Explain why the amount of dissolved oxygen in a lake is often considered an indicator of the "health" of the lake. 5. One strategy to reverse the effects of eutrophication in a pond is to install an aeration system. This technology bubbles air into the pond and, in doing so, continually stirs up the surface water so that algal blooms…Need help 1. Based on Graphicsa) Where is the position of the marine biota zone, make a zone inhabited by stenohaline and euryhaline groups. Explain!b) Why is the number of estuary water species the least compared to the other two biota groups? 2. Where is the productivity of plankton in the neritic and oceanic layers high? what is the reason for this?
- Unit 1: Fo x O Dashboard O What are EI Nino x O Copy of Exhibitio O Work on Exhibitic x QhcKKILgKyul.euV791u2MGONIk07CITIR21al/edit#slide-id.ged38e15Sa39 0 204 D Present- Tools Add-ons Help Last edit was 3 days ago D Background Layout- Theme Transition Trophic Cascades Part 2 - Interactive part 1 What does a solid line indicate? What does a broken line indicate? Add arrows, [+] and (-) to the diagram below. Otter Kelp Urchin ker notescter X Edio | Course Student X List 1 characteristic thX RepostExchange | Rec 089956/lessons/1533882/variants/1533882/take/5/ A * Practice MATCHING LIST Сycles Match each vocabulary term to its definition. recycling of matter between liv- a. water cycle ing things and the environment b. reservoir part of a cycle that holds a sub- stance for a short period of time C. nitrogen fixation water held below Earth's surface d. carbon cycle portion of a cycle that holds a substance for a long period of time biogeochemical cycle е. change from solid directly to gas f. exchange pool recycling of water through living sublimation g. and nonliving things h. sedimentation recycling of carbon through living and nonliving things ke/5/To explain: The important environmental factors that affect the aquatic ecosystems.
- 5) What are the main challenges that put pressure on the environm ent?PART A: Fishing for the Future Review the Tragedy of the Commons: https://youtu.be/CxC161GvMPc Additional resources for this laboratory exercise: Seafood Watch: http://www.seafoodwatch.org/ Center for Marine Conservation Ocean Action Network: www.cmc-ocean.org Marine Fish Conservation Network: www.conservefish.org World Wildlife Fund Conservation Action Network: www.takeaction.worldwildlife.org UN FAO Fisheries and Aquaculture Department: www.fao.org/fishery/en Marine Stewardship Council: www.msc.org/ 1 Why is conservation important? 2 Do a search online. What can you do to help protect the oceans?vier Pabon Martirlaz - Chapter x U Meet-cxf zpso-nxh ocument/d/1Gs-tJQEOT87boJxhUjVgouSnEmebrAwtSNWHWEb4MKU/edit Arlal BIUA 100% Normal text 14 1 |. 2 3. 4 21st Century Themes Science and Global Awareness, Science and Civic Literacy 1. What abiotic factor is changing the ecosystem of Lake Washington, and how has this factor changed over time? 2. Explain how this change has affected the mixing of warm and cold water in the lake. How does this in turn affect fish? 3. This report suggests that global warming is a primary contributor to the increased temperature in the lake. What does this suggest about other lake ecosystems in the northwest coniferous forest? 4. Briefly describe a food chain in Lake Washington. 5.1f the zooplankton population is decreasing in Lake Washington, what do you think is happening to the salmon population? Explain your answer
- a. what is the historical background of fisheries. How is it related to science and technology? b. What is the role of science in the existence of fisheries.R Q1. The realized niches observed in nature are often larger than the fundamental niches of the organisms being observed. Ⓒ True F5 ➤ 11 Submit Q2. The competitive exclusion principle only applies when the niches of competing species are different (i.e., do not overlap). True 5 Submit Q3. Four snake species colonize an island at the same time. The species are biologically identical in every way and the island is habitable to them. If nothing changes, which of the following options is most likely to happen over time? Submit All four species will coexist because they will divide up the prey on the island. All four species will go extinct because they have identical niches. One species will develop a new realized niche and survive while the others go extinct because of competition. ⒸOne species will persist, but we cannot predict which one; the others will go extinct because of competition. Q4. If four different snake species with identical food and habitat niches colonize an island at…Name 3 industrial fishing practices, and explain how they result in bycatch and marinehabitat degradation.
