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All of the following strategies would potentially help restore populations of wild salmon except
The answer to the question is c.
Wood is important in creating pool habitat for migratory fish. Removing wood from streams results in loss of pool habitat which has a negative impact on the swimming and spawning of wild salmon.
Large woody debris also enhances the quality of fish habitat.
Wood actually creates a wide diverse aquatic habitat for salmon.
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- Which of the following is not part of the attempt to address overfishing by the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act? a) Establishing quotas for fishing b) Research on marine environments c) Compensation for sustainable fishing practices d) Setting aside 200 nautical miles of the U.S. coastd) Provide a brief overview of Environmental Concerns, Impacts, and Sustainability of Coastal Fishing e) Provide insight into Indeginous perspectives, collaborations, oppositions, and impacts of colonial Canada's use of this Coastal FishingWhich of the following describes an outcome of water scarcity in a community? a) More imports and exports b) Loss of industries and jobs c) Emigration of people into the area d) Increased housing and construction
- 1) Describe some of the specific forest management techniques/strategies that are being currently used to balance wildlife habitat/water quality with logging timber. 2) Describe at least 3 major impacts to salmon caused by Logging, Agriculture and Development in terms of the part of their life cycle that is impacted.Which of these characteristics would classify an introduced species as being invasive? A) they can be grown easily B) they have many natural predators C) they take away resources from native organisms D) they tend to not survive well with changes to a new environment8)Which of the following questions would be considered ecological questions? choose all that apply a)How does the availability of rainfall affect pollen production in mulberry trees? b)How do the population dynamics of hawks affect the population dynamics of lizards? c)How does elevation affect the amount of rainfall? d)How did the mouse species present in the Mojave Desert arise? e)How does a mutation in a gene for amylase affect nutrient absorption in white-tailed deer? f)None of these are ecological questions
- What is the problem of zebra mussels, and invasive species (see Case Study 11.1 in Natural Resource Conservation)?For each of the following environmental problems, please list two potential steps that can be taken to reduce negative effects: 1. Impacts of invasive species 2. Impacts of pollution4. Why is Pacific salmon movement into freshwater streams considered migration if the salmon die at the head of the stream and never return to the ocean? A) It is not considered migration but immigration. B) Migration is a one-way movement. C) Because their offspring return to the ocean, the entire population participates in the migratory event via different life stages. D) Most male adult fish survive reproduction and return to the ocean. 5. The distribution of species is rarely determined by minimum and maximum temperature tolerances. TRUE or FALSE.
- Are the below statements true or false (correct or wrong)? You have briefly to motivate your answer using graphs and/or arguments. a) A specific forest area is discovered to be an important habitat for a certain variety of snakes. Thus, the optimal timber rotation time should be extended. b) Assume a mine extracting both copper and silver. If the price of copper falls and the mine managers decides to increase the production of silver, silver then represents a socalled by-product. c) A rise in global demand for copper will shorten the reserve life of a given copper mining operation. d) If a farm grows two different crops and the price of one of the crops increases, the production mix will shift towards reduced production of the crop that has become more expensive.Discuss the following Management strategies and tactics of Integrated Pest Management in your own concise words: a) Do nothing strategy b) Reduce pest population numbers strategy c) Reduce crop susceptibility to pest injury strategy d) Combined reduce pest population numbers with reduce crop susceptibility strategyChoose all of the negative environmental consequences of human population growth A) increased deforestation B) increase habitat loss C) fewer extinction D) increased air pollution E) decreased need for mining F) decrease in water pollution G) increased loss of fertile top soil H) increased use of fertilizer for agricultural