时间:2019-01-02 作者:英语课 分类:健康与环境


英语课

ENVIRONMENT REPORT - October 25, 2002: Chinook Salmon 1 Deaths


By Cynthia Kirk



This is the VOA Special English ENVIRONMENT REPORT.


American officials say at least twenty-thousand chinook salmon and other fish have died recently in the Klamath
River in Northern California. Scientists are not sure what caused the die-off. But environmental groups say the
Bush administration’s plan to redirect the flow of the river to provide water for crops may have caused water
levels to drop too low.


The Klamath River starts at Upper Klamath Lake in southern Oregon and flows into Northern California. Then
river flows west into the Pacific Ocean. Water management of the Klamath River has been a major dispute
between farmers on one side and fishermen, environmental groups and several Native American tribes on the
other side.


Six months ago, the Bush administration approved a plan to provide large amounts of water to farmers near the
Klamath River for irrigation. Farmers depend on water from the upper Klamath Lake to irrigate 2 more than
eighty-thousand hectares of land. Administration officials said the plan would satisfy farmers and honor
environmental laws. But opponents of the plan said it would severely 3 harm the river and its fish.


Several fishing groups and others have taken legal action against the federal government. They said the Bush
administration gave too much water to farmers for irrigation at the risk of thousands of salmon. Some of the
salmon, such as coho, are protected under the Endangered Species Act. However, chinook salmon do not have
federal protection. Chinook were the main victims of the recent fish kill.


Scientists disagree about what caused to the fish to die. Tests showed that most of the fish died of lack of oxygen
due to infections that damaged their gills. Scientists say the organisms that caused the infection are common in
the river. But rarely have the organisms led to so many deaths.


Some scientists say warm and dry weather last month and low water flows in the Klamath River could be major
reasons for the deaths. They say the river is too low for fish to move upstream to mate. They say the fish are
dying of disease because they are crowded into small areas of water.


Biologists have called for more water to be released into the river for at least six months. But so far, federal
officials have agreed only to two weeks of additional water flows.


This VOA Special English ENVIRONMENT REPORT was written by Cynthia Kirk.



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n.鲑,大马哈鱼,橙红色的
  • We saw a salmon jumping in the waterfall there.我们看见一条大马哈鱼在那边瀑布中跳跃。
  • Do you have any fresh salmon in at the moment?现在有新鲜大马哈鱼卖吗?
vt.灌溉,修水利,冲洗伤口,使潮湿
  • The farmer dug several trenches to irrigate the rice fields.这个农民挖了好几条沟以灌溉稻田。
  • They have built canals to irrigate the desert.他们建造成水渠以灌溉沙漠。
adv.严格地;严厉地;非常恶劣地
  • He was severely criticized and removed from his post.他受到了严厉的批评并且被撤了职。
  • He is severely put down for his careless work.他因工作上的粗心大意而受到了严厉的批评。
学英语单词
acid-intoxication
adenomatoid tumor
administrative reply
agrotening
al lith (lith)
artificial rock asphalt
attendant's switchboard
axle-driven generator
bupranolol
car-sharings
carboloy resistance noise
carrier electrolyte
chain bucket unloader
chlorophenyl trichlorosilane
cipre
closed centre
cold clean reactor
Conduli
confining stress
cornflakes
darabukka (iran)
deism
departmental overhead rate
diaphragm (pneumatic) cylinder
division point
dockmen
dresners
e-zelle
Eastern Question
elbow crutch
electrolyzer
error density
explosive anchor
faintingness
golden cups
Gounou-Gaya
green datacenter
half-wave power transmission
handbag
hospit-
hugg
hydradenoma
image burn
informational activities
institutional packaging
interaction element
inverse spinel
Irakleio, Nomos
islamic state of afghanistans
ivors
land-conservation
Lightweight Directory Interchange Format
medicants
microphone hiss
microporellids
miles of relative movement
milk-glass scale
moisture collector
nassau range
noder
Noreňa
orthoevolution
pay the reckoning
penicillin F
petrosky
phonocardiograms
pickleheads
pigment dyes
pildralazine
Pinuxylon
preperforative
queen's remembrancer
radauite (labradorite)
re-assembly
reasuring
rocket projectile
Rokko-zaki
Santee
Schwieberdingen
Shady Spring
signal-to-mask ratio
sluggardising
Spiranthes spiralis
state transition model
Stone algebra
stooge sort
stoutest
synovy
tag ends
teardown analysis
Teriberka
text input-output primitive
the us department of energy
thin juice
to meet a meeting
toxicological detection
toxicoproteomics
Trachycarpus fortunei
Trema dielsiana
vitello-intestinal duct
volumetric display
WRM