Spatial and Temporal Relations between Fluvial and Allacustrine Yellowstone Cutthroat Trout, Oncorhynchus clarki bouvieri, Spawning in the Yellowstone River, Outlet Stream of Yellowstone Lake

Kaeding, Lynn R.; Boltz, Glenn D.

doi:10.1023/a:1011698712982

Cited by 19 publications

(5 citation statements)

References 12 publications

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“…During spring (May-July), cutthroat trout spawn in up to 68 tributaries around Yellowstone Lake, move downstream to spawn in the Yellowstone River below Fishing Bridge, or make long-distance spawning migrations upstream into the remote headwaters of the upper Yellowstone River [46]. Because of their lacustrine-adfluvial life history strategy [40,47,48], they transport lake-derived nutrients into numerous tributary streams [49] where they are important prey for grizzly bears [50], black bears [51], and numerous avian predators [52,53]. Although some cutthroat trout fry may remain in the natal stream for 1-2 years, most move into Yellowstone Lake within several months of hatching.…”

Section: Study Area and Focal Speciesmentioning

confidence: 99%

Yellowstone Lake Ecosystem Restoration: A Case Study for Invasive Fish Management

Koel

Arnold

Bigelow

et al. 2020

Fishes

104

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Invasive predatory lake trout Salvelinus namaycush were discovered in Yellowstone Lake in 1994 and caused a precipitous decrease in abundance of native Yellowstone cutthroat trout Oncorhynchus clarkii bouvieri. Suppression efforts (primarily gillnetting) initiated in 1995 did not curtail lake trout population growth or lakewide expansion. An adaptive management strategy was developed in 2010 that specified desired conditions indicative of ecosystem recovery. Population modeling was used to estimate effects of suppression efforts on the lake trout and establish effort benchmarks to achieve negative population growth (λ < 1). Partnerships enhanced funding support, and a scientific review panel provided guidance to increase suppression gillnetting effort to >46,800 100-m net nights; this effort level was achieved in 2012 and led to a reduction in lake trout biomass. Total lake trout biomass declined from 432,017 kg in 2012 to 196,675 kg in 2019, primarily because of a 79% reduction in adults. Total abundance declined from 925,208 in 2012 to 673,983 in 2019 but was highly variable because of recruitment of age-2 fish. Overall, 3.35 million lake trout were killed by suppression efforts from 1995 to 2019. Cutthroat trout abundance remained below target levels, but relative condition increased, large individuals (> 400 mm) became more abundant, and individual weights doubled, probably because of reduced density. Continued actions to suppress lake trout will facilitate further recovery of the cutthroat trout population and integrity of the Yellowstone Lake ecosystem.

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Section: Study Area and Focal Speciesmentioning

confidence: 99%

Yellowstone Lake Ecosystem Restoration: A Case Study for Invasive Fish Management

Koel

Arnold

Bigelow

et al. 2020

Fishes

104

View full text Add to dashboard Cite

show abstract

“…Bear and bird response variables used in time series analyses. References (66)(67)(68)(69)(70)(71)(72)(73)(74)(75)(76)(77)…”

Section: Supplementary Materialsmentioning

confidence: 99%

Predatory fish invasion induces within and across ecosystem effects in Yellowstone National Park

et al. 2019

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Predatory fish introduction can cause cascading changes within recipient freshwater ecosystems. Linkages to avian and terrestrial food webs may occur, but effects are thought to attenuate across ecosystem boundaries. Using data spanning more than four decades (1972–2017), we demonstrate that lake trout invasion of Yellowstone Lake added a novel, piscivorous trophic level resulting in a precipitous decline of prey fish, including Yellowstone cutthroat trout. Plankton assemblages within the lake were altered, and nutrient transport to tributary streams was reduced. Effects across the aquatic-terrestrial ecosystem boundary remained strong (log response ratio ≤ 1.07) as grizzly bears and black bears necessarily sought alternative foods. Nest density and success of ospreys greatly declined. Bald eagles shifted their diet to compensate for the cutthroat trout loss. These interactions across multiple trophic levels both within and outside of the invaded lake highlight the potential substantial influence of an introduced predatory fish on otherwise pristine ecosystems.

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“…Among them, decoration techniques using phosphorous have been studied widely [11]. If the zeolite is subjected to steam at high temperature, its activity decays rapidly until reaching an equilibrium state, resulting from dealumination of aluminum from the framework of zeolite.…”

Section: Catalyst Stabilization Technologymentioning

confidence: 99%

Catalytic Cracking of Lower-Valued Hydrocarbons for Producing Light Olefins

et al. 2010

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A number of important chemicals are made from light olefins such as propylene and ethylene, and it is expected that market demand for these light olefins will continue to grow at 4-5% annually, and the average overall growth of propylene will be about 1% higher than that of ethylene. From the viewpoint of supply of feedstock and demand of light olefins, it is anticipated that the thermal cracking process of naphtha will be gradually transformed to a catalytic process such as ACO TM that can efficiently produce both ethylene and propylene in high yield. Also, together with primary light olefin production technologies utilizing heavy feedstocks such as DCC TM , and HPFCC, supplementary propylene production technologies utilizing C 4 -C 4 such as SUPERFLEX TM , MOI TM , and PROPY-LUR TM will be applied gradually in commercial production.

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Spatial and Temporal Relations between Fluvial and Allacustrine Yellowstone Cutthroat Trout, Oncorhynchus clarki bouvieri, Spawning in the Yellowstone River, Outlet Stream of Yellowstone Lake

Cited by 19 publications

References 12 publications

Yellowstone Lake Ecosystem Restoration: A Case Study for Invasive Fish Management

Yellowstone Lake Ecosystem Restoration: A Case Study for Invasive Fish Management

Predatory fish invasion induces within and across ecosystem effects in Yellowstone National Park

Catalytic Cracking of Lower-Valued Hydrocarbons for Producing Light Olefins

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