argument131[desperado] 第十五次作业 by Grace

grace040802UID: 2348819

"The marine sanctuary on Tria Island was established to protect certain marine mammals. Its regulations ban dumping and offshore oil drilling within 20 miles of Tria, but fishing is not banned. Currently many fish populations in Tria's waters are declining, a situation blamed on pollution. In contrast, the marine sanctuary on Omni Island has regulations that ban dumping, offshore oil drilling, and fishing within 10 miles of Omni and Omni reports no significant decline in its fish populations. Clearly, the decline in fish populations in Tria's waters is the result of overfishing, not pollution. Therefore, the best way to restore Tria's fish populations and to protect all of Tria's marine wildlife is to abandon our regulations and adopt those of Omni."
WORDS:600            DATE: 2007-12-25 0:07:48

The arguer recommends that the best way to prevent Tria's fish population from declining and protect all of Tria's marine wildlife is to take the measures of Omni, which bans dumping offshore oil drilling, and fishing within 10 miles away from the coast, rather than those of their own, which only bans dumping and offshore oil drilling within 20 miles but not fishing, on the assumption that in Omni banning fishing makes no significant decline in its fish population. This recommendation is hastily generalized, lacking insufficient evidence to support.

First of all, the arguer asserts that Tria should banning fishing following the example of the Omni, on the assumption that the regulation on prohibiting fishing is attributed to no decline in the number of fish. Yet, if the Omni Island coast is long enough to allow large population of fish to live for which have the strong ability of the reproduction, even that the Omni don't implement such regulation, the fish population don't decline. Lacking evidence about the true reason of no significant decline, the assumption is unwarranted.

Further, even if banning fishing takes effect on keep the fish population, the arguer relied on what might account to an unfair analogy between Omni and Tria, in asserting that the same regulation implemented in Omni would keep the fish populations away from significant decline. We are told nothing whether the two islands are comparable in many aspects such as the environment around the coast, the total miles of the coast lines and the fish population in the two island waters. Perhaps the environment nearby the Omni is fit for fish to live and the populations of fish are so large that a small amount of fish captured makes no difference on the whole, While that of Tria is not so good that the fish population is small , thereby fishing a small number of fish might cause the declining. Or it is entirely possible that the fish death caused by lacking of food or some other reasons results in the decline. Without ruling out these possibilities, this assertion is unconvinced.

The third flaw is that the arguer is too hasty to draw a conclusion that the decline in fish population in Tria's waters is not the result of pollution, without providing any evidence, even though overfishing is one of the reasons It is likely that due to the toxic effluents emission from the factories, the fish suffers diseases caused to the grand deaths. Unless presenting some relevant data which indicates the extent of the Tria's waters' purity, this conclusion is unwarranted.

At last, the conclusion that the best way to restore Tria's fish populations and to protect all of the marine wildlife is to abandon our regulation and adopt those of Omni is not reliable. Any other adoptive way is not presented, which is used to compare with the way the arguer is concerned. I'm hardly persuaded that the way mentioned above is the best one. What's more, there is no information that indicates banning fishing can also protect other kinds of marine wildlife. As we know, the marine wildlife is not only marine mammals but also the various plants in the sea. This suggestion is unconvincing on the ground.

In conclusion, the recommendation is not reliable and well supported. To bolster it , the arguer should justify that banning fishing in Omni is the real reason of no decline in fish populations, and provide the similarity of problems the two islands face. To better strengthen the recommendation, I need some information about other adopted to compare with the way mentioned by the arguer.