Forecasting the combined effects of anticipated climate change and agricultural conservation practices on fish recruitment dynamics in Lake Erie

Dippold, David A.; Aloysius, Noel; Keitzer, S. Conor; Yen, Haw; Arnold, Jeffrey G.; Daggupati, Prasad; Fraker, Michael E.; Martin, Jay F.; Robertson, Dale M.; Sowa, Scott P.; Johnson, Mari‐Vaughn V.; White, M.H.; Ludsin, Stuart A.

doi:10.1111/fwb.13515

Cited by 17 publications

(20 citation statements)

References 116 publications

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“…Thus, the ideal thermal conditions for producing high yellow perch recruitment in the west basin would be a long, cold winter followed by a rapidly warming spring. These findings are consistent with previous studies (Clady, 1976; Dippold et al., 2020; Farmer et al., 2015; Henderson & Nepszy, 1988). Controlled laboratory studies have shown that short, warm winters reduce egg size, lipid content and hatching success, lead to small larvae, and potentially alter the spawning phenology of yellow perch (Farmer et al., 2015).…”

Section: Discussionsupporting

confidence: 93%

Section: Consistent Importance Of Abiotic Driverssupporting

confidence: 94%

“…Second, these relationships may be spurious and result from environmental conditions favouring both yellow perch and walleye. For instance, the cold, long winters that favour yellow perch also appear to favour walleye recruitment (Dippold et al., 2020). This uncertainly points to a weakness in our approach and underscores the need for follow‐up studies to better understand this relationship.…”

Section: Discussionmentioning

confidence: 99%

“…Notably, within Lake Erie, the importance and positive effect of high ice cover has not declined in recent years, even as the frequency of ice‐free winters has increased. If the importance of ice cover remains high in Lake Erie, short, warm winters may threaten yellow perch populations as the regional climate continues to warm (Dippold et al., 2020; Farmer et al., 2015; Hayhoe et al., 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Changes in the underlying trophic state of Lake Erie may offer an explanation for the shifting importance of spring Maumee River inflows and adult walleye population size, highlighting that the importance of key environmental drivers may depend on the underlying state of the ecosystem (Perretti et al., 2017). This notion is important to consider, as nutrient‐abatement programmes aimed at reducing bottom hypoxia and harmful algal blooms may lead to unintended consequences for fish production in Lake Erie (Dippold et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

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Ecosystem change as a driver of fish recruitment dynamics: A case study of two Lake Erie yellow perch populations

et al. 2021

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Section: Discussionsupporting

confidence: 93%

Section: Consistent Importance Of Abiotic Driverssupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Ecosystem change as a driver of fish recruitment dynamics: A case study of two Lake Erie yellow perch populations

et al. 2021

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Use of the North American Standard Gill Net for Sampling the Invasive White Perch: Information from Three Kansas Reservoirs

Sowards

Waters

Johnson

et al. 2021

N American J Fish Manag

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The invasive White Perch Morone americana occurs intermittently throughout Kansas and is ubiquitous in three Kansas reservoirs. However, a paucity of information on the effectiveness of sampling gears for providing accurate and precise estimates of size structure and relative abundance for White Perch precludes reasonable assessments of the effectiveness of control measures. The North American standard gill net has been used to sample White Perch in Kansas since 2010. Previous studies have provided selectivity curves for several species that are sampled with this gear to mitigate overall size bias, which is inherently present in gill‐net catches. However, White Perch populations have not been included in these initial studies. We fit selectivity models to catch data from three Kansas reservoirs to adjust the gill‐net catch data for contact selectivity. We used the most parsimonious selectivity curve to adjust the values for White Perch capture at length for 10 years of catch data. Most of the adjusted samples resulted in meaningful changes to the length distributions. To test for the effectiveness of the North American standard gill net for sampling White Perch populations, we measured the precision of the relative abundance estimates for White Perch and the frequency of obtaining 100 stock‐size fish with a standard sampling effort from 9 to 10 years of historical gill‐net samples. Our results suggest the North American standard gill net provides precise and robust estimates for the relative abundance of stock‐sized White Perch, but a correction factor that is derived from the selectivity curve might be needed to accurately estimate relative abundance for small individuals and to evaluate population size structure.

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It’s Complicated and It Depends: A Review of the Effects of Ecosystem Changes on Walleye and Yellow Perch Populations in North America

Hansen

Ruzich

Krabbenhoft

et al. 2022

N American J Fish Manag

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Walleye Sander vitreus and Yellow Perch Perca flavescens are culturally, economically, and ecologically significant fish species in North America that are affected by drivers of global change. Here, we review and synthesize the published literature documenting the effects of ecosystem changes on Walleye and Yellow Perch. We focus on four drivers: climate (including temperature and precipitation), aquatic invasive species, land use and nutrient loading, and water clarity. We identified 1,232 tests from 370 papers, split evenly between Walleye (n = 613) and Yellow Perch (n = 619). Climate was the most frequently studied driver (n = 572), and growth or condition was the most frequently studied response (n = 297). The most commonly reported relationship was "no effect" (42% of analyses), usually because multiple variables were tested and only a few were found to be significant. Overall responses varied among studies for most species-response-driver combinations. For example, the influence of invasive species on growth of both Walleye and Yellow Perch was approximately equally likely to be positive, negative, or have no effect. Even when results were variable, important patterns emerged; for example, growth responses of both species to temperature were variable, but very few negative responses were observed. A few relationships were relatively consistent across studies. Invasive species were negatively associated with Walleye recruitment and abundance, and higher water clarity was negatively associated with Walleye abundance, biomass, and production. Some variability in responses may be due to differences in methodology or the range of variables studied; others represent true context dependence, where the effect of a driver depends on the influence of other variables. Using common metrics of impact, publishing negative results, and robust analytical approaches could facilitate comparisons among systems and provide a more comprehensive understanding of the responses of Walleye and Yellow Perch to ecosystem change.

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Forecasting the combined effects of anticipated climate change and agricultural conservation practices on fish recruitment dynamics in Lake Erie

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 17 publications

References 116 publications

Ecosystem change as a driver of fish recruitment dynamics: A case study of two Lake Erie yellow perch populations

Ecosystem change as a driver of fish recruitment dynamics: A case study of two Lake Erie yellow perch populations

Use of the North American Standard Gill Net for Sampling the Invasive White Perch: Information from Three Kansas Reservoirs

It’s Complicated and It Depends: A Review of the Effects of Ecosystem Changes on Walleye and Yellow Perch Populations in North America

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