Climate change alters the egg development dynamics in cold-water adapted coregonids

Keskinen, Tapio; Pulkkanen, Merja; Marjomäki, Timo J.

doi:10.1007/s10641-014-0331-y

Cited by 19 publications

(69 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Risk spreading reproductive strategy of short‐lived, small‐sized vendace producing several egg clutches during spawning aim to disperse their offspring widely in time and space (Karjalainen & Marjomäki, ; Karjalainen et al., ). Our field sampling results demonstrated the dispersion of offspring at the larval stage and the results of the egg distribution model simulations supported the hypothesis that the lake‐wide dispersion of eggs occurs in the spawning period due to dispersion of spawning locations.…”

Section: Discussionmentioning

confidence: 99%

Dispersion of vendace eggs and larvae around potential nursery areas reveals their reproductive strategy

et al. 2019

Self Cite

View full text Add to dashboard Cite

Depending on their reproductive strategy, different fish species aim to aggregate or disperse eggs and larvae in their reproductive habitat. Many pelagic species disperse their eggs widely around the potential nursery areas. Larval dispersion or aggregation affects population sub‐structuring, which has important implications in fisheries management and conservation of the natural spatial diversity in populations. The dispersion of larval vendace (Coregonus albula) was quantified in two oligotrophic Finnish lakes, and effects of density and environmental variables on the inter‐annual variation in the larval distribution were examined by analysing spatial abundance data from the lakes from 1999 to 2017. A 3‐D hydrodynamic egg distribution model was used to simulate the larval transport after hatching. Vendace larvae dispersed lake‐wide to both littoral and pelagic zones but, in some littoral hot spots, more larvae aggregated year after year. However, in years of high larval number, the densities increased not only in the hot spots, but generally at all sampling plots. An overall increase in abundance was observed at all sampling sites. The simulations of the egg distribution model supported the hypothesis that the dispersion of the eggs occurs by spawners, i.e. by spawning at several different spawning sites, which are located all around the lake. The dispersion of vendace eggs and larvae can be seen as a bet‐hedging strategy in space and time since in boreal oligotrophic large lakes with fragmented morphology, weather and other environmental factors in spring during hatching varies from year to year spatially in unpredictable manner. Lake‐wide larval dispersion suggests that the subpopulations of adjacent lake deeps may swap considerable amounts of individuals during early life and may not be closed units. Conservation of particular habitats seems unnecessary for Finnish vendace populations where large potential spawning areas in lakes are available.

show abstract

Section: Discussionmentioning

confidence: 99%

Dispersion of vendace eggs and larvae around potential nursery areas reveals their reproductive strategy

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Climate change‐induced temperature increases have implications for the timing and success of reproduction and recruitment (Karjalainen, Keskinen, Pulkkanen, & Marjomäki, ; Lappalainen & Tarkan, ). Cooling water temperatures during autumn–winter stimulates the spawning of predominantly cold‐water fish species (e.g., salmonids) in subarctic freshwaters (Shuter, Finstad, Helland, Zweimüller, & Hölker, ).…”

Section: Ecological Effects Of Climate Change On Subarctic Freshwatermentioning

confidence: 99%

“…Thermal tolerances for newly hatched salmonids are lower than older juveniles, therefore suggesting that temperature increases will increase larval mortality (Elliott & Elliott, ). However, increases in winter temperature by 1–2°C did not alter mortality of eggs and larvae of subarctic salmonids, whitefish, and vendace (Karjalainen et al., ), suggesting that extreme events will have the strongest effects on recruitment dynamics. Increased heatwaves will also increase the frequency and extent of fish kills for cohorts of adult or large‐bodied cold‐water salmonids as water temperatures approach the upper lethal limit (Arctic charr and brown trout: 22–25°C; whitefish and Atlantic salmon: 25–28°C; Elliott & Elliott, ; Vielma, Koskela, & Ruohonen, ).…”

Section: Ecological Effects Of Climate Change On Subarctic Freshwatermentioning

confidence: 99%

“…Vertical range retractions of cold-climate species are linked with changes in isotherms causing extinctions at low elevations where water temperature and possibly dissolved oxygen pass physiological performance thresholds (Isaak & Rieman, 2013;Whitney et al, 2016); such reductions in distribution are not consistently compensated for by vertical colonization of higher elevations due to dispersal limitations (e.g., Lindholm et al, 2012). Range expansions and invasion of temperate fish species are also predicted to occur in the subarctic zone due to increased water temperature, further complicating impacts of climate change (described in detail below Climate change-induced temperature increases have implications for the timing and success of reproduction and recruitment (Karjalainen, Keskinen, Pulkkanen, & Marjomäki, 2015;Lappalainen & Tarkan, 2007). Cooling water temperatures during autumn-winter stimulates the spawning of predominantly cold-water fish species (e.g., salmonids) in subarctic freshwaters (Shuter, Finstad, Helland, Zweimüller, & Hölker, 2012).…”

Section: Climate Change Effects At the Population Levelmentioning

confidence: 99%

See 1 more Smart Citation

Conceptualising the interactive effects of climate change and biological invasions on subarctic freshwater fish

Rolls

Hayden

Kahilainen

2017

Ecology and Evolution

View full text Add to dashboard Cite

Climate change and species invasions represent key threats to global biodiversity. Subarctic freshwaters are sentinels for understanding both stressors because the effects of climate change are disproportionately strong at high latitudes and invasion of temperate species is prevalent. Here, we summarize the environmental effects of climate change and illustrate the ecological responses of freshwater fishes to these effects, spanning individual, population, community and ecosystem levels. Climate change is modifying hydrological cycles across atmospheric, terrestrial and aquatic components of subarctic ecosystems, causing increases in ambient water temperature and nutrient availability. These changes affect the individual behavior, habitat use, growth and metabolism, alter population spawning and recruitment dynamics, leading to changes in species abundance and distribution, modify food web structure, trophic interactions and energy flow within communities and change the sources, quantity and quality of energy and nutrients in ecosystems. Increases in temperature and its variability in aquatic environments underpin many ecological responses; however, altered hydrological regimes, increasing nutrient inputs and shortened ice cover are also important drivers of climate change effects and likely contribute to context‐dependent responses. Species invasions are a complex aspect of the ecology of climate change because the phenomena of invasion are both an effect and a driver of the ecological consequences of climate change. Using subarctic freshwaters as an example, we illustrate how climate change can alter three distinct aspects of species invasions: (1) the vulnerability of ecosystems to be invaded, (2) the potential for species to spread and invade new habitats, and (3) the subsequent ecological effects of invaders. We identify three fundamental knowledge gaps focused on the need to determine (1) how environmental and landscape characteristics influence the ecological impact of climate change, (2) the separate and combined effects of climate and non‐native invading species and (3) the underlying ecological processes or mechanisms responsible for changes in patterns of biodiversity.

show abstract

“…Typically, populations in cold environments tend to spawn earlier in the season than populations in warmer environments (Brannon, 1987;Brannon, Powell, Quinn, & Talbot, 2004;Hodgson & Quinn, 2002). Given the strong relationship between temperature, spawning timing, and embryonic development, rapid ecosystem-level temperature change could markedly affect physiological rates and survival during early life stages in salmonids (Angilletta et al, 2008;Beacham & Murray, 1990;Karjalainen, Keskinen, Pulkkanen, & Marjom€ aki, 2015;Steel et al, 2012;Whitney et al, 2014). This period is therefore subject to selection on early life history traits and adult spawning times.…”

Section: Introductionmentioning

confidence: 99%

Thermal adaptation and phenotypic plasticity in a warming world: Insights from common garden experiments on Alaskan sockeye salmon

Sparks

Westley

Falke

et al. 2017

Global Change Biology

View full text Add to dashboard Cite

An important unresolved question is how populations of coldwater-dependent fishes will respond to rapidly warming water temperatures. For example, the culturally and economically important group, Pacific salmon (Oncorhynchus spp.), experience site-specific thermal regimes during early development that could be disrupted by warming. To test for thermal local adaptation and heritable phenotypic plasticity in Pacific salmon embryos, we measured the developmental rate, survival, and body size at hatching in two populations of sockeye salmon (Oncorhynchus nerka) that overlap in timing of spawning but incubate in contrasting natural thermal regimes. Using a split half-sibling design, we exposed embryos of 10 families from each of two populations to variable and constant thermal regimes. These represented both experienced temperatures by each population, and predicted temperatures under plausible future conditions based on a warming scenario from the downscaled global climate model (MIROC A1B scenario). We did not find evidence of thermal local adaptation during the embryonic stage for developmental rate or survival. Within treatments, populations hatched within 1 day of each other, on average, and among treatments, did not differ in survival in response to temperature. We did detect plasticity to temperature; embryos developed 2.5 times longer (189 days) in the coolest regime compared to the warmest regime (74 days). We also detected variation in developmental rates among families within and among temperature regimes, indicating heritable plasticity. Families exhibited a strong positive relationship between thermal variability and phenotypic variability in developmental rate but body length and mass at hatching were largely insensitive to temperature. Overall, our results indicated a lack of thermal local adaptation, but a presence of plasticity in populations experiencing contrasting conditions, as well as family-specific heritable plasticity that could facilitate adaptive change.

show abstract

Climate change alters the egg development dynamics in cold-water adapted coregonids

Cited by 19 publications

References 42 publications

Dispersion of vendace eggs and larvae around potential nursery areas reveals their reproductive strategy

Dispersion of vendace eggs and larvae around potential nursery areas reveals their reproductive strategy

Conceptualising the interactive effects of climate change and biological invasions on subarctic freshwater fish

Thermal adaptation and phenotypic plasticity in a warming world: Insights from common garden experiments on Alaskan sockeye salmon

Contact Info

Product

Resources

About