Endless Harvest
More than two hundred years ago, Russian explorers and fur hunters landed on the Aleutian Islands, a volcanic archipelago in the North Pacific, and learned of a land mass that lay farther to the north. The islands' native inhabitants called this land mass Aleyska, the ‘Great Land'; today, we know it as Alaska.
The forty-ninth state to join the United States of America (in 1959), Alaska is fully one-fifth the size of the mainland 48states combined. It shares, with Canada, the second longest river system in North America and has over half the coastline of the United States. The rivers feed into the Bering Sea and Gulf of Alaska - cold, nutrient-rich waters which support tens of millions of seabirds, and over 400 species of fish, shellfish, crustaceans, and molluscs. Taking advantage of this rich bounty, Alaska's commercial fisheries have developed into some of the largest in the world.
According to the Alaska Department of Fish and Game (ADF&G), Alaska's commercial fisheries landed hundreds of thousands of tonnes of shellfish and herring, and well over a million tonnes of groundfish (cod, sole, perch and pollock) in 2000. The true cultural heart and soul of Alaska's fisheries, however, is salmon. ‘Salmon,' notes writer Susan Ewing in The Great Alaska Nature Factbook, ‘pump through Alaska like blood through a heart, bringing rhythmic, circulating nourishment to land, animals and people.' The ‘predictable abundance of salmon allowed some native cultures to flourish,' and ‘dying spawners* feed bears, eagles, other animals, and ultimately the soil itself.' All five species of Pacific salmon - chinook, or king; chum, or dog; coho, or silver; sockeye, or red; and pink, or humpback - spawn** in Alaskan waters, and 90% of all Pacific salmon commercially caught in North America are produced there. Indeed, if Alaska was an independent nation, it would be the largest producer of wild salmon in the world. During 2000, commercial catches of Pacific salmon in Alaska exceeded 320,000 tonnes, with an ex-vessel value of over US260 million.
Catches have not always been so healthy. Between 1940 and 1959, overfishing led to crashes in salmon populations so severe that in 1953 Alaska was declared a federal disaster area. With the onset of statehood, however, the State of Alaska took over management of its own fisheries, guided by a state constitution which mandates that Alaska's natural resources be managed on a sustainable basis. At that time, statewide harvests totalled around 25 million salmon. Over the next few decades average catches steadily increased as a result of this policy of sustainable management, until, during the 1990s, annual harvests were well in excess of 100 million, and on several occasions over 200 million fish.
The primary reason for such increases is what is known as ‘In-Season Abundance-Based Management'. There are biologists throughout the state constantly monitoring adult fish as they show up to spawn. The biologists sit in streamside counting towers, study sonar, watch from aeroplanes, and talk to fishermen. The salmon season in Alaska is not pre-set. The fishermen know the approximate time of year when they will be allowed to fish, but on any given day, one or more field biologists in a particular area can put a halt to fishing. Even sport fishing can be brought to a halt. It is this management mechanism that has allowed Alaska salmon stocks - and, accordingly, Alaska salmon fisheries - to prosper, even as salmon populations in the rest of the United States are increasingly considered threatened or even endangered.
In 1999, the Marine Stewardship Council (MSC)* commissioned a review of the Alaska salmon fishery. The Council, which was founded in 1996, certifies fisheries that meet high environmental standards, enabling them to use a label that recognises their environmental responsibility. The MSC* has established a set of criteria by which commercial fisheries can be judged. Recognising the potential benefits of being identified as environmentally responsible, fisheries approach the Council requesting to undergo the certification process. The MSC* then appoints a certification committee, composed of a panel of fisheries experts, which gathers information and opinions from fishermen, biologists, government officials, industry representatives, non-governmental organisations and others.
Some observers thought the Alaska salmon fisheries would not have any chance of certification when, in the months leading up to MSC's final decision, salmon runs throughout western Alaska completely collapsed. In the Yukon and Kuskokwim rivers, chinook and chum runs were probably the poorest since statehood; subsistence communities throughout the region, who normally have priority over commercial fishing, were devastated.
The crisis was completely unexpected, but researchers believe it had nothing to do with impacts of fisheries. Rather, they contend, it was almost certainly the result of climatic shifts, prompted in part by cumulative effects of the el niño / la niña phenomenon on Pacific Ocean temperatures, culminating in a harsh winter in which huge numbers of salmon eggs were frozen. It could have meant the end as far as the certification process was concerned. However, the state reacted quickly, closing down all fisheries, even those necessary for subsistence purposes.
In September 2000, MSC announced that the Alaska salmon fisheries qualified for certification. Seven companies producing Alaska salmon were immediately granted permission to display the MSC logo on their products. Certification is for an initial period of five years, with an annual review to ensure that the fishery is continuing to meet the required standards.
* MSC: a joint venture between WWF (World Wildlife Fund) and Unilever, a Dutch-based multi-national
Do the following statements agree with the information given in Reading Passage 2?
In boxes 14-20 on your answer sheet, write
TRUE if the statement agrees with the information
FALSE if the statement contradicts the information
NOT GIVEN if there is no information on this in the passage
题目定位词:inhabitants, rename, ‘Aleyska’
答案位置:第1段第2句
题解:题目:阿留申群岛的居民重命名他们的岛为“阿利斯卡”。
原文:岛屿上的土著居民称之为阿利斯卡,意即“伟大的土地”,也就是现在的阿拉斯加。题中“重命名”与文章不符。因此答案为FALSE。
题目定位词:owned, world’s largest companies
答案位置:第2 段最后一句
题解:题目:阿拉斯加的渔业由世界最大的几个公司所拥有。
原文:阿拉斯加商业捕鱼发展到位居世界前列,在原文找不到“世界最大的几个公司”的信息,答案为NOT GIVEN。
题目定位词:dependent on salmon
答案位置:第3段第2句
题解:题目:阿拉斯加的生活依赖于鲑鱼。
原文:阿拉斯加的鲑鱼如同心脏中流动的血液,给这里的土地、动物和人类带来了脉动、流通和繁荣。题目与原文表达的信息是一致的,因此答案为 TRUE。
题目定位词:ninety percent, sockeye or pink salmon
答案位置:第3段第5句
题解:题目:太平洋里90%的鲑鱼是粉红鲑。
原文只是表述“所有的五种太平洋鲑鱼 ——王鲑、狗鲑、银鲑、红鲑、粉红鲑 ——都在阿拉斯加水域产卵,北美捕捞 的90%的太平洋鲑鱼都来自这里。”因此答案为NOT GIVEN。
题目定位词:320,000 tonnes, in 2000
答案位置:第3段最后一句
题解:题目:2000年在阿拉斯加阿捕获了超过 320,000吨鲑鱼。
原文:2000年一年里,阿拉斯加商业渔业打捞了超过320,000吨的太平洋鲑鱼。题目与原文表达的信息是一致的, 因此答案为TRUE。
题目定位词:between 1940 and 1959, sharp decrease
答案位置:第4段第2句
题解:本题较为简单,题目:在1940到1959年 期间,阿拉斯加的鲑鱼产量锐减。
原文:1940至1959年间,过度捕捞导致了鲑鱼数量急剧下降。题目与原文表达的信息是一致的,因此答案为TRUE。
题目定位词:1990s, average number, 100 million
答案位置:第4段最后一句
题解:题目:在20世纪九十年代,鲑鱼的平均 年捕获量为1亿。
原文:到20 世纪九十年代,鲑鱼的年捕捞量远超过1亿条。因此答案为 FALSE。
