Effects of Fisheries Management and Lakeshore Development on Water Quality in Diamond Lake, Oregon

Eilers, J. M.; Gubala, Chad P.; Sweets, P. Roger; Hanson, Denis W.

doi:10.1080/07438140109353971

Cited by 10 publications

(12 citation statements)

References 14 publications

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“…We overlaid SARs (Figure 4 , and it appears that the diatoms (Figure 9) decrease in relation to an increase in SARs (Figure 4), and the associated increase in planktonic activity ( Figure 8); a supplementary (overlaid) figure is enclosed as a separate document. In Eilers et al [2], in the "Reconciling Watershed Development, Fisheries Changes, and Sediment History" section, first paragraph, the authors' justification for abandoning upland issues ignores the "near-far" effect (near corresponds to the shore zone development around the lake; far corresponds to forest management within the watershed). The authors disregard the upland areas because the streams are short and do not have much power.…”

Section: Discussionmentioning

confidence: 99%

“…It appears that much of the sand and gravel is being trapped in the low-gradient portion of the stream and by the fringing riparian areas. Eilers et al [2] also disregard the loss of riparian along the eastern shore due to human activity and roads. Our hypothesis is that the watershed and shoreline activity is associated with the SARs, with impacts on the fisheries as a result.…”

Section: Discussionmentioning

confidence: 99%

“…In Eilers et al [2], the authors discussed sediment accumulation rates (SARs) and discussed human use activities around the lake, and they tried to correlate SARs with the increased presence of Tui Chub. This is speculative.…”

Section: Sediment and Tui Chubmentioning

confidence: 99%

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Response to Comments for “An Ecological Function Approach to Managing Harmful Cyanobacteria in Three Oregon Lakes: Beyond Water Quality Advisories and Total Maximum Daily Loads (TMDLs)”, Water 2019, 11, 1125

Hall

Aron³

et al. 2019

Water

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The commenter’s key argument is that Diamond Lake’s problem is strictly one of biomass, i.e., introduction of the invasive Tui Chub fish. There are a few things to note in that respect. The Tui Chub is a bait fish. It is a lower-order prey fish for higher-order trout/salmonid species. Tui Chub is zooplanktivorous. Since the Tui Chub feed on zooplankton, if they themselves are prey for other species (or are being “culled” by artificial means), and there is no other entity to feed on the plankton and algae, the result would be a mass of plankton/algae bloom (i.e., harmful algal blooms (HABs)). This would lead to anoxic conditions in the euphotic zone, which puts even more stress on the higher-order trout/salmonid species. Our work found that the biological community (i.e., invertebrates and fish) are lagging indicators (i.e., response indicators).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Response to Comments for “An Ecological Function Approach to Managing Harmful Cyanobacteria in Three Oregon Lakes: Beyond Water Quality Advisories and Total Maximum Daily Loads (TMDLs)”, Water 2019, 11, 1125

Hall

Aron³

et al. 2019

Water

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“…Lake McCarrons has not returned to its natural state -clearly, stratification is stronger due to salt inputs, the phytoplankton community composition is different (Ramstack et al 2004, Stoermer et al 1996, fish stocking from 1908 to the present (Minnesota Department of Natural Resources unpubl. data) and angling pressures have undoubtedly altered the trophic structure of the lake (Schindler 1997, Eilers et al 2001, and other parameters have changed irreversibly as the lake suffers the persistent aftereffects of 20th century eutrophication. The logistical and financial barriers to solving the lake's fundamental management problem -persistent stratification -will continue to hinder improvement efforts.…”

Section: The Mid-20th Century Is Anomalousmentioning

confidence: 99%

Sedimentary and historical context of eutrophication and remediation in urban Lake McCarrons (Roseville, Minnesota)

Myrbo

2008

Lake and Reservoir Management

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Geochemical analysis of the varved (annually laminated) sediments of a small, deep urban lake in east-central Minnesota shows that some water-quality and watershed indicators are approaching prehistoric (pre-1850s) values after an excursion to anomalous levels during the 1920s through 1950s. This high-resolution paleolimnological information (annually resolved for most of the 20th century), including varve thickness measurements on a digital image, carbon stable isotopic composition of organic matter, and sedimentary component quantification, provides historical perspective to lake managers planning remedial measures with reference to the "natural" state of the lake, especially in regard to the perception that water quality has declined only in recent decades (i.e., in the late 20th century). The lake is at present eutrophic and oligomictic, with oxygen-depleted bottom waters enriched in dissolved solids relative to surface waters; an alum treatment has contributed to the problem of persistent stratification at the same time as it has reduced phosphorus and increased transparency in lake surface waters. The sedimentary record shows the lake's strong response to agricultural, recreational, and urban development in the watershed, gradual improvement beginning at the time of sanitary sewer installation in the 1960s, and only a minor additional response to a concerted remediation effort in the mid-1980s to 1990s. Indices of terrestrial inputs and algal productivity show evidence of a lake that was at its most heavily impacted during the mid-20th century, and which has improved in some respects since the 1960s.

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“…Wastes from these campgrounds and the resort are collected and treated outside the watershed. Additional information regarding watershed and lake history is described in Eilers et al (2001). Tui chub, a minnow native to the Klamath drainage east of Diamond Lake, was fi rst sighted in the lake in 1940 (Dimick 1954).…”

Section: Study Sitementioning

confidence: 99%

Biological effects of repeated fish introductions in a formerly fishless lake: Diamond Lake, Oregon, USA

Eilers¹,

Loomis²,

Amand³

et al. 2007

fal

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Biological responses to a formerly fi shless lake in the Cascade Range, Oregon (USA) were assessed through monitoring of recent changes and paleolimnological techniques to assess earlier changes. We used unpublished fi sheries reports, sediment cores, and available published and unpublished water quality data to evaluate changes to the lake. Diamond Lake has undergone four periods of fi sh introductions in the 20 th century. Rainbow trout (Salmo gairdneri) were annually released from 1910-2006, except for 1949 and 1954. Tui chub (Gila bicolor), an omnivorous cyprinid, were introduced in the late 1930s and the late 1980s, presumably as discarded live bait. Diamond Lake was treated with rotenone in 1954 which successfully eradicated the tui chub. The introductions of trout caused relatively modest changes in water quality and lake biota, whereas the introductions of tui chub caused major increases in cyanobacteria, changes in diatom community composition, reduction in transparency, increases in the proportion of rotifers, major reduction in benthic standing crop, and virtual elimination of amphipods, gastropods, and other large-bodied invertebrates. The unintended biomanipulations demonstrate the importance of an omnivorous cyprinid in promoting a series of biological responses throughout the lake food web.

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Effects of Fisheries Management and Lakeshore Development on Water Quality in Diamond Lake, Oregon

Cited by 10 publications

References 14 publications

Response to Comments for “An Ecological Function Approach to Managing Harmful Cyanobacteria in Three Oregon Lakes: Beyond Water Quality Advisories and Total Maximum Daily Loads (TMDLs)”, Water 2019, 11, 1125

Response to Comments for “An Ecological Function Approach to Managing Harmful Cyanobacteria in Three Oregon Lakes: Beyond Water Quality Advisories and Total Maximum Daily Loads (TMDLs)”, Water 2019, 11, 1125

Sedimentary and historical context of eutrophication and remediation in urban Lake McCarrons (Roseville, Minnesota)

Biological effects of repeated fish introductions in a formerly fishless lake: Diamond Lake, Oregon, USA

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