Projected impacts of climate warming on production of lake trout (<i>Salvelinus namaycush</i>) in southern Yukon lakes

Mackenzie-Grieve, Jody L.

doi:10.1139/f05-257

Cited by 22 publications

(16 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Flebbe, 1993;Chu, Mandrak & Minns, 2005;Rieman et al, 2007). The potential effects of climate change on the habitat of cold-water species have also been widely studied in lakes, where both the number of lakes and habitat area per lake suitable for fish species were predicted to decrease (Stefan, Fang & Eaton, 2001;Mackenzie-Grieve & Post, 2006). However, some studies have also argued that in some North American lakes, climate change could result in an increase in suitable thermal habitats for all thermal guilds, including cold-water species (Magnuson, Meisner & Hill, 1990;De Stasio et al, 1996;Fang, Stefan & Alam, 1999).…”

Section: Some Illustrationsmentioning

confidence: 99%

Climate‐induced changes in the distribution of freshwater fish: observed and predicted trends

Comte

Buisson

Daufresne³

et al. 2012

Freshwater Biology

323

265

View full text Add to dashboard Cite

Summary 1. Climate change could be one of the main threats faced by aquatic ecosystems and freshwater biodiversity. Improved understanding, monitoring and forecasting of its effects are thus crucial for researchers, policy makers and biodiversity managers. 2. Here, we provide a review and some meta‐analyses of the literature reporting both observed and predicted climate‐induced effects on the distribution of freshwater fish. After reviewing three decades of research, we summarise how methods in assessing the effects of climate change have evolved, and whether current knowledge is geographically or taxonomically biased. We conducted multispecies qualitative and quantitative analyses to find out whether the observed responses of freshwater fish to recent changes in climate are consistent with those predicted under future climate scenarios. 3. We highlight the fact that, in recent years, freshwater fish distributions have already been affected by contemporary climate change in ways consistent with anticipated responses under future climate change scenarios: the range of most cold‐water species could be reduced or shift to higher altitude or latitude, whereas that of cool‐ and warm‐water species could expand or contract. 4. Most evidence about the effects of climate change is underpinned by the large number of studies devoted to cold‐water fish species (mainly salmonids). Our knowledge is still incomplete, however, particularly due to taxonomic and geographic biases. 5. Observed and expected responses are well correlated among families, suggesting that model predictions are supported by empirical evidence. The observed effects are of greater magnitude and show higher variability than the predicted effects, however, indicating that other drivers of changes may be interacting with climate and seriously affecting freshwater fish. 6. Finally, we suggest avenues of research required to address current gaps in what we know about the climate‐induced effects on freshwater fish distribution, including (i) the need for more long‐term data analyses, (ii) the assessment of climate‐induced effects at higher levels of organisation (e.g. assemblages), (iii) methodological improvements (e.g. accounting for uncertainty among projections and species’ dispersal abilities, combining both distributional and empirical approaches and including multiple non‐climatic stressors) and (iv) systematic confrontation of observed versus predicted effects across multi‐species assemblages and at several levels of biological organisation (i.e. populations and assemblages).

show abstract

Section: Some Illustrationsmentioning

confidence: 99%

Climate‐induced changes in the distribution of freshwater fish: observed and predicted trends

Comte

Buisson

Daufresne³

et al. 2012

Freshwater Biology

323

265

View full text Add to dashboard Cite

show abstract

“…Growing degree‐days were also negatively related to Lake Trout CPUE, further highlighting the sensitivity of Lake Trout to warmer climates (Chu et al. ; Mackenzie‐Grieve and Post ; Guzzo et al. ).…”

Section: Discussionmentioning

confidence: 82%

“…Additionally, warmer climates may result in greater stress for both of the cold‐adapted predators in our study through limitation of optimal thermal habitat (Chu et al. ; Mackenzie‐Grieve and Post ; Guzzo et al. ).…”

Section: Discussionmentioning

confidence: 87%

Offshore Prey Densities Facilitate Similar Life History and Behavioral Patterns in Two Distinct Aquatic Apex Predators, Northern Pike and Lake Trout

et al. 2018

View full text Add to dashboard Cite

Northern Pike Esox lucius are important aquatic apex predators in freshwater ecosystems across the Canadian Boreal Shield. Although Northern Pike have historically been described as nearshore ambush predators, larger individuals have been anecdotally observed foraging in offshore habitats. We used two province‐wide data sets from Ontario, Canada, to investigate the degree to which Northern Pike are generalist predators by examining the influence of offshore prey fish densities on their life histories. To better understand whether the life history patterns observed were unique to Northern Pike or representative of aquatic apex predators generally, we compared Northern Pike life history and catch results to those of the Lake Trout Salvelinus namaycush, a well‐known pelagic apex predator. We found that the asymptotic lengths of both Northern Pike and Lake Trout were positively related to Cisco Coregonus artedi CPUE. Furthermore, both Northern Pike and Lake Trout occupied offshore habitat more frequently in lakes with greater Cisco CPUEs. Northern Pike early growth and mortality rates were negatively related to Cisco CPUE but positively related to Yellow Perch Perca flavescens CPUE, suggesting that Northern Pike undergo ontogenetic shifts to foraging on Ciscoes later in life. Although the growth and mortality of these predators were related to prey availability, variation in the CPUEs of Northern Pike and Lake Trout was best explained by physical lake characteristics. Our study suggests that Northern Pike and Lake Trout respond similarly to Cisco CPUE across the Canadian Boreal Shield, consistent with research reported for other aquatic apex predators. Results of this work collectively suggest that generalist behavior and large‐bodied life history strategies of Northern Pike are facilitated by the availability of Ciscoes.

show abstract

“…; De Stasio et al. ; Mackenzie‐Grieve & Post ; Plumb & Blanchfield ), with associated decreases in growth being attributed to the reduction of shallow water habitat usage where feeding opportunities are typically greater (King et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…Where lake morphometry is associated with a small hypolimnion, the movement of fish to the hypolimnion is likely to increase fish densities and may lower individual growth via density-dependent mechanisms that reduce ration, particularly if profundal foraging opportunities are limited. Evidence of an earlier and warmer stratification pattern due to climate warming has been correlated with a reduction in preferred thermal habitat volume for other cold-water fish species (e.g., Schindler et al 1990;De Stasio et al 1996;Mackenzie-Grieve & Post 2006;Plumb & Blanchfield 2009), with associated decreases in growth being attributed to the reduction of shallow water habitat usage where feeding opportunities are typically greater (King et al 1999). While data presented here suggest that sensitivity to climate warming in small lakes will be in evidence even within the bounds of current temperature variability, larger lakes are likely to remain unaffected, particularly if like Lake Qamutissait they enjoy the advantage of large upstream thermal buffers dominated by larger, deeper lakes from which they receive regular discharge.…”

Section: Discussionmentioning

confidence: 99%

The effect of lake morphometry on thermal habitat use and growth in Arctic charr populations: implications for understanding climate‐change impacts

Murdoch

Power

2013

Ecology of Freshwater Fish

View full text Add to dashboard Cite

Oxygen stable isotope temperature reconstruction methods were used to estimate mean experienced summer temperatures from growth zones within individual Arctic charr otoliths sampled from lakes with contrasting morphologies but proximate locations. For either lake, otolith‐estimated temperatures were not significantly related to back‐calculated growth. Fish in the smaller lake evidenced an increase in growth with age related to increasing use of cooler thermal habitats, with the use of thermal habitat possibly governed by predation risks. No relationships between age, growth or temperature were observed in the larger lake. Significant negative effects on back‐calculated growth were observed due to increasing air temperatures in the smaller and shallower lake, possibly owing to warmer surface and littoral waters and a limited amount of preferred cool‐water habitat. A similar relationship was not observed in the larger and deeper lake and indicated that resident Arctic charr were not as vulnerable to the impacts of temperature warming, possibly because of better behavioural thermoregulation opportunities in the cooler, deeper lake. Results provide evidence for differing climate‐influenced growth outcomes among proximately located populations, with outcomes likely to depend on the differences among habitats, including lake size and morphometry which may act to influence fish densities in available preferred thermal habitats.

show abstract

Projected impacts of climate warming on production of lake trout (Salvelinus namaycush) in southern Yukon lakes

Cited by 22 publications

References 27 publications

Climate‐induced changes in the distribution of freshwater fish: observed and predicted trends

Climate‐induced changes in the distribution of freshwater fish: observed and predicted trends

Offshore Prey Densities Facilitate Similar Life History and Behavioral Patterns in Two Distinct Aquatic Apex Predators, Northern Pike and Lake Trout

The effect of lake morphometry on thermal habitat use and growth in Arctic charr populations: implications for understanding climate‐change impacts

Contact Info

Product

Resources

About