Apo Island Environmental Science Ch 1

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1. Describe why fishing has changed at Apo Island, and the direct and indirect effects on people’s lives. Thirty years ago, Apo Island faced a catastrophic decline in the seafood. This decline was linked to rapid population growth combined with destructive fishing methods such as dynamite or cyanide fishing, small gill nets, deep-sea trawling, and muroami. Scientists from a nearby island collaborated with Apo locals to devise a plan to reestablish the fish supply. With the implementation of the suggested reserves, fish populations excelled in a short period of time. In addition to the reserve plan, a low-impact fishing methods were implemented. This includes fishing methods such as hand-held lines, bamboo traps, large mesh nets, spearfishing. The direct effect of this was the increase in available fish supply. This allows locals to gather fish much easier with this increase in supply. Now that they don’t have to spend as much time getting fish, they have more time to devote to building the economy in their area. The much improved area and new infrastructure brings additional people into the area. Tourists come to visit the area and produce income from the area by means of diving and touring as well their time and money spent in hotels and restaurants. 6. In a graph, which axis represents the independent variable? The dependent variable? In a graph, the X axis represents the independent variable. The X axis is horizontal. These variables are also called the explanatory variables in hopes they will explain differences in the dependent variable. The Y axis represents the dependent variable, also known as a response variable. The Y axis is vertical. This variable is affected by the independent variables. 9. Why do some experts regard water as the most critical natural resource for the twenty-first century? Water is needed for survival. Not only does the human body need water to sustain life, but so do other animals and species. Water is also needed...
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