首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Fishermen on the high seas have plenty of worries, not the least of which are boat tossing storms, territorial squabbles and eve
Fishermen on the high seas have plenty of worries, not the least of which are boat tossing storms, territorial squabbles and eve
admin
2010-07-19
37
问题
Fishermen on the high seas have plenty of worries, not the least of which are boat tossing storms, territorial squabbles and even pirates. Now Boris Worm, a marine biologist at Dalhousie University in Halifax, Canada, has added another. After studying, among other things, global catch data over more than 50 years, he and a team of 13 researchers in four countries have come to a stunning conclusion. By the middle of this century, fishermen will have almost nothing left to catch. "None of us regular working folk are going to be able to afford seafood," says Stephen Palumbi, a Stanford University marine biologist and co-author of the study published in Science. "It’s going to be too rare and too expensive."
Don’t tell that to your local sushi chef. Over the past three decades, the fish export trade has grown fourfold, to 30 million tons, and its value has increased ninefold, to $ 71 Billion. The dietary attractiveness of seafood has stoked demand. About 90% of the ocean’s big predators like cod and tuna--have been fished out of existence. Increasingly, fish and shrimp farms are filling the shortfall. Though touted as a solution to overfishing, many of them have--along with rampant coastal development, climate change and pollution devastated the reefs, mangroves and seagrass beds where many commercially valuable fish hatch.
Steven Murawski, chief scientist at the U. S. National Marine Fisheries Service, finds Worm’s headlining prediction far too pessimistic, Industry experts are even more skeptical "There’s now a global effort to reduce or eliminate fishing practices that aren’t sustainable," says industry analyst Howard Johnson. "With that increased awareness, these projections just aren’t realistic."
Perhaps. Still, the destructive fishing practices that have decimated tuna and cod have not declined worldwide, as Johnson suggests. Up to half the marine life caught by fishers is discarded, often dead, as bycatch, and vibrant coral forests are still being stripped bare by dragnets. Worm argues that fisheries based on ecosystems stripped of their biological diversity are especially prone to collapse. At least 29% of fished species have already collapsed, according to the study, and the trend is accelerating.
what’s a fish eater to do? "Vote with your wallet," says Michael Sutton, who runs the Monterey Bay Aquarium’s Seafood Watch program in California. Since 1999, the aquarium has handed out pocket guides listing sustainably harvested seafood. The Marine Stewardship Council has partnered with corporations to similarly certify wild and farm-raised seafood. Some 370 products in more than two dozen countries bear the British group’s "Fish Forever" label of approval. Wal-Mart and Red Lobster, among others, have made commitments to sell sustainably harvested seafood.
But that’s just a spit in the ocean unless consumers in Japan, India, China and Europe join the chorus for change. "If everyone in the U. S. started eating sustainable seafood," says Worldwatch Institute senior researcher Brian Halweil, "it would be wonderful, but it wouldn’t address the global issues. We’re at the very beginning of this."
All of the following are mentioned as factors threatening seafood EXCEPT ______.
选项
A、change of climate.
B、fish farms.
C、pollutants.
D、rapid development.
答案
D
解析
细节题。按照题目顺序及选项内容定位至第二段。倒数第二句指出:为了填补过度捕鱼的空缺,建立了越来越多的渔场。末句指出这一举措会毁掉许多有很大经济价值的鱼类孵卵的海床,其他因素还包括 rampant coastal development,climate change and pollution, [D]“陕速发展”与文意不符,故为答案。
转载请注明原文地址:https://kaotiyun.com/show/wqlO777K
0
专业英语八级
相关试题推荐
Howwasitpossible,Iaskedmyself,towalkforanhourthroughthewoodsandseenothingworthyofnote?Iwhocannotseefind
WhichofthefollowingisTRUE?Assoonaspersongets"thresholdpains",heshould______.
HowmanypeoplediedintherecentconflictbetweenIraqipeopleandtheU.S.-ledcoalitiontroops?
Mandarin,orPutonghua,isthestandardservicesectorlanguageinourcountry.Butrecently,employeesatabigcity’ssubways
Inordertogetyourpointacrossinyourtargetlanguage,youhavetolearnplentyofwords.Howdoyousetaboutit?Dr.Paul
Inordertogetyourpointacrossinyourtargetlanguage,youhavetolearnplentyofwords.Howdoyousetaboutit?Dr.Paul
A、FishermenB、ScientistsC、TouristsD、SuffersD
Inordertogetyourpointacrossinyourtargetlanguage,youhavetolearnplentyofwords.Howdoyousetaboutit?Dr.Paul
JobworrieshelpedpushconsumerconfidencedowninSeptemberforthesecondconsecutivemonth.TheConsumerConfidenceIndexfe
随机试题
患者,男性,71岁。糖尿病多年,尿糖控制不佳,最终患“慢性肾衰竭”,自诉疲乏、纳差、胸闷。体检:心率为94次/分,心律不齐,血压170/102mmHg,测血清钾为7.7mmoL/L,血肌酐为660μmoL/L。此时最有可能危及患者生命的情况是发生
Wearedelightedatthenews________ourdaughterisexpectingababy.
库欣反应引起枕骨大孔疝临床表现出
A.阿司匹林B.布洛芬C.吲哚美辛D.双氯芬酸钠E.对乙酰氨基酚结构中含有异丁基的药物是
A.自身免疫性溶血B.急性淋巴细胞白血病C.慢性粒细胞白血病D.多发性骨髓瘤E.MDS
A.吗啡B.泻药C.止泻药D.祛痰药E.肾上腺皮质激素
企业根据职工提供服务的收益对象进行职工薪酬分配时,可能涉及的会计科目有()。
下列关于理财法律关系的说法正确的是( )。Ⅰ.金融理财师应以自己的名义实施理财行为Ⅱ.法定委托需要具有明确的、合法的托付事项,并通过法定形式进行Ⅲ.代理关系强调委托人和受托人之间的关系Ⅳ.代理即指代理人在代理权限范围内,以被代理人的名义或自己的名
建立一个学生表ST,它由学号XH、姓名XM、所在系SD这3个属性组成,其中学号属性不能为空。在下列语句中,能实现该功能的正确语句是______。
__________.(同中国加强合作)isintheinterestsoftheUnitedStates.
最新回复
(
0
)