Stocking sockeye salmon (Oncorhynchus nerka) in barren lakes of Alaska: effects on the macrozooplankton community

Kyle, Gary B.

doi:10.1016/0165-7836(96)00486-9

Cited by 7 publications

(4 citation statements)

References 31 publications

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“…Nutrients from salmon gametes and carcasses are incorporated into freshwater biota, through both the direct consumption of the gametes and body tissues and the uptake of nutrients from decomposing carcasses by bacteria and primary producers, which stimulates the proliferation of benthic algae and invertebrates (Kline et al 1990;Wipfli et al 1998). Similar positive effects have been shown for phytoplankton and zooplankton in the nursery lakes of sockeye salmon (Krohkin 1975;Kyle 1996), although the overall effects on zooplankton have been mixed due to counteracting predation by juvenile salmon (Kyle 1996, Schmidt et al 1998. Salmon eggs and carcasses also serve as a food source for benthic invertebrates and fish in streams and lakes (Kline et al 1993;Bilby et al 1998;Foote and Brown 1998;Minakawa and Gara 1999).…”

Section: Connecting Lakes and Streams To The Oceanmentioning

confidence: 80%

“…Nevertheless, recent work has proposed the setting of management goals, based on the assumption of positive feedback between current and future salmon populations (Schmidt et al 1998;Bilby et al 2001). While the influx of salmon-derived nutrients increases primary and secondary production in some lakes and streams (cf Kyle 1996), in other cases this input is only a small part of the overall nutrient budget of the nursery system (Gross et al 1998). Caution should be exercised when using stable isotopes to demonstrate a direct relationship between nutrients from salmon and the survival of their offspring.…”

Section: Connecting Lakes and Streams To The Oceanmentioning

confidence: 99%

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Pacific Salmon and the Ecology of Coastal Ecosystems

Schindler¹,

Scheuerell

Moore³

et al. 2003

Frontiers in Ecology and the Environment

147

204

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One of the most spectacular phenomena in nature is the annual return of millions of salmon to spawn in their natal streams and lakes along the Pacific coast of North America. The salmon die after spawning, and the nutrients and energy in their bodies, derived almost entirely from marine sources, are deposited in the freshwater ecosystems. This represents a vital input to the ecosystems used as spawning grounds. Salmon-derived nutrients make up a substantial fraction of the plants and animals in aquatic and terrestrial habitats associated with healthy salmon populations. The decline of salmon numbers throughout much of their southern range in North America has prompted concern that the elimination of this "conveyor belt" of nutrients and energy may fundamentally change the productivity of these coastal freshwater and terrestrial ecosystems, and consequently their ability to support wildlife, including salmon. If progress is to be made towards understanding and conserving the connection between migratory salmon and coastal ecosystems, scientists and decisionmakers must explore and understand the vast temporal and spatial scales that characterize this relationship.

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Section: Connecting Lakes and Streams To The Oceanmentioning

confidence: 80%

Section: Connecting Lakes and Streams To The Oceanmentioning

confidence: 99%

Pacific Salmon and the Ecology of Coastal Ecosystems

Schindler¹,

Scheuerell

Moore³

et al. 2003

Frontiers in Ecology and the Environment

147

204

View full text Add to dashboard Cite

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“…The changes in cladoceran abundances could be a response to declines in sockeye 605 salmon abundances (Fig. 4h), as juvenile salmonids are key predators of cladocerans (Hume et al 1996;Kyle 1996). An inverse relation between cladoceran body sizes and temperature 607 have been noted elsewhere (Havens et al 2014) agriculture operations in the Columbia and Fraser valleys.…”

mentioning

confidence: 99%

Ecological dynamics of a peri-urban lake: a multi-proxy paleolimnological study of Cultus Lake (British Columbia) over the past ~ 200 years

et al. 2020

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Peri-urban lakes offer many valued ecosystem services, but their vulnerability to climate change and anthropogenic disturbances increases with expanding human populations. As the effects and interactions of multiple stressors on lakes can lead to unexpected outcomes, affecting societal and ecological values, it is necessary to evaluate ecosystem trajectories and respective drivers in peri-urban lakes. BetterPowered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation management practices could thus be applied to preserve ecosystem services of periurban lakes. We conducted a multi-proxy paleolimnological study on Cultus Lake, British Columbia, a Canadian peri-urban lake experiencing cultural eutrophication, to reconstruct a comprehensive ecological trajectory of the lake over the past ~200 years. We also integrated historical data as well as historical archival information to identify the potential drivers of the changes. We identified ca. 1800-1900 CE as a reference period, reflected in muted variations across most paleo-indicators. Minor increases in sedimentary δ 15 N ca. 1880-1940 CE coincided with the onset of anthropogenic modifications to the Cultus Lake watershed. Signs of early eutrophication were evident by ca. 1940 CE, as indicated by increases in all sedimentary pigments. By ca. 1970-1990 CE, elevated concentrations of sedimentary cyanobacterial pigments and changes in diatom species assemblages highlighted the potential interactive effects of multiple stressors, including cultural eutrophication, climate warming and declines in the endangered Cultus Lake sockeye salmon population. Recent (ca. 1990 declines in sedimentary pigments and increases in cladoceran fluxes suggested an increase in top-down control of the lake food web. From the collection of changes observed in the past ~200 years in our study, it is clear that Cultus Lake and its associated ecosystem services would benefit from abatement of nutrient loadings from terrestrial and atmospheric sources. Our study emphasizes the complexity and interactivity of drivers in peri-urban lake ecosystems and the necessity of long-term perspectives to contextualize modern ecological conditions to inform lake and watershed management.

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“…These fish typically spend the first one to two years of their lives living in the limnetic zone of a lake before making their way to the ocean (Burgner, 1991;Naiman et al, 2002). While inhabiting these freshwater systems, Sockeye Salmon are predominantly planktivoruous and mainly feed on pelagic zooplankton (Burgner, 1991;Kyle et al, 1996;Koenings & Kyle, 1997). Hume et al (2005) conducted a study on Quesnel Lake, Shuswap Lake, Table 1.2: Results from four studies looking at water quality and biotic differences among salmon bearing and non-salmon bearing streams and lakes.…”

Section: Plankton Backgroundmentioning

confidence: 99%

The movement of marine-derived nutrients from a salmon spawning river to a nursery lake

Duros¹

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Salmon play a key role in the redistribution of marine-derived nutrients (MDNs) in aquatic and terrestrial ecosystems. Research conducted on the movement and storage of MDNs in aquatic systems throughout the Pacific Northwest seem to vary in whether MDNs have a beneficial, neutral, or detrimental impact. Using Horsefly Bay (Quesnel Lake), the mechanism and driving factors for the delivery and dispersion of MDNs were evaluated. Higher concentrations of marinederived nitrogen and carbon were found to enter this nursery system in the fall spawning period. However, due to the increased water discharge, it was found that the load of marine-derived nitrogen and carbon was higher during the spring freshet study period. These increases in MDNs were found to correlate with chlorophyll-a and fluorescence levels which indicate increases in productivity. Increased production can support the growth and survivorship of juvenile salmon rearing in this nursery system through bottom-up trophic transfer.

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Stocking sockeye salmon (Oncorhynchus nerka) in barren lakes of Alaska: effects on the macrozooplankton community

Cited by 7 publications

References 31 publications

Pacific Salmon and the Ecology of Coastal Ecosystems

Pacific Salmon and the Ecology of Coastal Ecosystems

Ecological dynamics of a peri-urban lake: a multi-proxy paleolimnological study of Cultus Lake (British Columbia) over the past ~ 200 years

The movement of marine-derived nutrients from a salmon spawning river to a nursery lake

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