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6 ࡈ˜ܝΝɓήᓃd˥ᜠʊ
װৰf
װৰܝ
AFTER
ίKRRC͍όટ၍வԬɽ ˙ᇁٙӐጐيdՉʕ 90% ݊ ٙϥɳᘷᗳਗ਼әɝئݴd̙
ᜠʘۃdఱ̀໌ሗՈ௪ɽ ϥɳٙᘷᗳfί˥ࢫર٤ʘ ঐึ࿁ᗳϓߧն۾উf̺
knew there would likely be a massive fish kill imme-
of high desert area, that promotes huge toxic algae
diately after the dams fell. In addition, the banks of
blooms. In the fall, the algae dies and sinks to the
ᅼࠇ᜕ٙʈʮ̡ ―― ܝdװৰɽᜠٙʈЪʑ͍όක ࣦքဧႭjவԬϥɳٙϞ
bottom’’ where it’s unable to decompose because it’s the river would, for a time, become a stark, muddy
࣬ኽݔԬПࠇdவࡈ̙ঐ݊ ―― ܼ̍ގᖹᖑॎ˸ʿ͜ ዚيሯ˥ݴ੭ਗֻɨݴࣛึ
not exposed to oxygen.
landscape crisscrossed with tracks left by heavy ma-
Removing the dams and releasing that dead algae chinery and with virtually no verdant growth. Armies
Όଢ௰ɽᅼٙ˥ᜠװৰၾ ܱɺዚװৰ௵ቱٙ˥إၾ፻ഊ ᔕdཀʕဆཀͩ᎘ഃي
of planters would descend on the affected areas,
posed a potentially fatal threat to the river’s fish. “As
these dead organic materials get stirred up as they
ئʇూԃࠇfଭdװৰ Ԩး̙ঐଣಞᎤf spreading seeds that would quickly green up the vast
ࣛఱ˸ટᙃՑःंfԟԬ
are sent downstream during drawdown, that mate- patches of mud, but project planners knew they would
வ 4 ࢭɽᜠٙልᕏܓჃჃʔ 100 εϋԸଢ଼ጐٙɽඎϥ يሯึіԐ˥ʕהϞٙःंd
rial’s getting exposed to the oxygen as it’s tumbling
have to brace themselves for a rough stretch of anger
over rocks and things,” Brownell says. “This mate- and alarm from residents.
݊ίਿࢭ׳࣬ގᖹ್ܝˏᖑ ɳᘷᗳ͉Ԓɰ݊ɓࡈಇ˓ٙਪ Դ๓༆ःዢܓࠥdவ͍݊Ң
That is why, Brownell explains, the KRRC orga-
rial will suck all the oxygen out of the water and
nized and worked closely with a group “composed
crash the dissolved oxygen levels. That was the risk
ఱঐ༆ӔٙfኁतႭj˼ࡁ ᕚf̺ࣦքဧ༆ᙑႭjவ ࡁ௰ዄːٙ ―― ɽඎவ၇ॹ
that we were concerned with regarding fish health of every fish-focused agency that you can think of,”
̀ܔிɓࢭd̀ක ԬɽᜠʔසڜኺᗳஷБdᒔ ःٙϞዚӐጐيݴɝئʇܝd
including Oregon’s and California’s departments
— that we were going to crash the dissolved oxygen
with the introduction of all this dead, organic, de -
of Fish and Wildlife, the National Marine Fisheries
ኬߧ˥ίفᆠٙࢀ֙ڗࣛග᎑
ጳܔɓࢭߴఙdҷഛ༸༩
̙ঐึኬߧئ˥ᘌࠠॹःdΚ
PHOTOGRAPHS: SWIFTWATER FILMS PHOTOGRAPHS: SWIFTWATER FILMS Չʕ 3 ࢭɽᜠ˥ࢫٙܝාʈЪ ʕdึˏ೯ϞݭᘷᗳዧᄣfՑ ༆ᙑ׳Ӑጐيึ੭Ըಂࠋࠦ
oxygenated sediment.”
Service, and the tribes’ fisheries departments. “They
It was understood from the outset that there would directed us to implement drawdown when the fall run
˟ʔਗfίவ၇৷ࡡӍဋᐑྤ
ʿࡈ໊ٙ͛πf
ഃഃf
be short-term negative effects of releasing the sedi-
had already come up and spawned out, the juveniles
ɓකɛک̂ʱ
were not yet out migrating, and you just didn’t have ଣ
Ϥ̮dνО͍ᆽήર׳
ment. To ensure that native salmon and trout were
protected as much as possible, engineers and scien-
a ton of salmon in the river.”
ə߇֙dᘷᗳϥɳԨӐጐՑ˥
And, the group concluded, the ideal time for the
tists designated specific time periods when fewer fish
drawdown to occur was the first or second month
would be in the main stem of the river. But there was
ࢫֵdԨΪމॹःೌجІ್
ɰ݊ɓɽܿfɓϣર˥ඎཀ
ᅂᚤfމəး̙ঐڭᚐࡡ͛ᒾ
of 2024.
no way to protect non-native fish species, and experts
ձ㑔dʈࢪၾ߅ኪत
ɽ̙ঐึˏ೯ݳӨdર˥ඎཀ
ʱ༆f
จ፯ίत֛ࣛݬආБރ˥d
װৰɽᜠܝdவԬӐጐ
ʃۆೌجϞࣖৰ 1,500 ຬͭ
MAY 2025 ROTARY 33
臺灣扶輪 2025.5 19
may25-D-Klamath.indd 33 3/24/25 16:51
