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
1-androstendiol
accounting of capital construction
AFMCH
air-conditioning refrigeration plant
alimentary
angle brass cock
aranotin
autoallergic
autoionizing
banjaras
baroque
basal veins
base metals
biodrum
bog pimpernels
capperbars
circulating fluidized-bed reactor
Co-Liver
compile-time activity
comprize
contradicted
core extractor
cuntwhore
demethylation
denethor
discission knife
DNV
ego-syntonia
electromagnetic transfer device
eulerian correlation coefficient
extraction of nonferrous metal
F instruments
fall-backs
free-body principle
gas current
genus rhapiss
gradacac
grahamii
green moisture content
growth operator
hemiones
heteroderid
humic compound
immovable pleasure boat
in-house communication system
initial response
ISESE
job control file
king hitting
Krunislav
local storage data register
low power satellite
madhat
main engine seating
metagenetic stage
mihrabs
natural product chemistry
non-cash iterms
not one's cup of tea
ortho-hydrogen
Pacific ridley
phytoseius rugatus
pituitary folds
platy
Pleasant Lake
Potenline
pseudomonopolar
quantitative television microscope
quenching apparatus
rectangular slot
reduce sb to tears
reel horizontal adjustment lever
reflector control
refrigerating car
replicatings
revelstokes
rhodotorula graminis
risch
rough sort
ruble
russlee
Sarkozyism
school bond
sclerotic
secretary treasurer
section with a switch or switches
set up a claim to
smalltime
special offers
ST_liking-and-attractiveness_unbiased-or-impartial
streamlined cross-section
stubbornness
tager
target illuminating laser radar
teleosaurian
thalassaemia
tight pants
tractor strength
typebars
wai fan yen i chih
wheresoeer
write-protecteds