Non-stationary recruitment dynamics of rainbow smelt: The influence of environmental variables and variation in size structure and length-at-maturation

Feiner, Zachary S.; Bunnell, David B.; Höök, Tomas O.; Madenjian, Charles P.; Warner, David M.; Collingsworth, Paris D.

doi:10.1016/j.jglr.2014.11.029

Cited by 18 publications

(9 citation statements)

References 104 publications

(182 reference statements)

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“…These results suggest effects of climate and abiotic environmental change on recruitment relationships deserve attention, as has been suggested by Vert-pre et al 2013and Feiner et al (2015), because these effects are complex and their direction and magnitude may differ, and even cancel each other out, as YOY fish progress through their first year of life. The primary effects of climate change on abiotic aspects of aquatic systems may include changes in mixing and stratification regimes, ice cover patterns, and hydrology (Nickus et al 2010).…”

Section: Climate Change Scenariosupporting

confidence: 58%

“…Environmental and biological mechanisms causing variable recruitment in fish populations have long been of interest to fisheries science (Cushing 1975;Wootton 1990;Diana 2004) and has received increased attention lately as we strive to predict effects of future climate change (e.g., Vert-pre et al 2013;Feiner et al 2015). Further, there is a continuing influx of nonnative species into many systems.…”

Section: R a F T Introductionmentioning

confidence: 99%

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Early mortality and freshwater forage fish recruitment: nonnative alewife and native rainbow smelt interactions in Lake Champlain

Simonin

Rudstam

Sullivan

et al. 2019

Can. J. Fish. Aquat. Sci.

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We studied the consequences of a nonnative species introduction and changes in temperature on early mortality and recruitment of native rainbow smelt (Osmerus mordax) and nonnative alewife (Alosa pseudoharengus) in Lake Champlain using a simulation model. Distribution patterns of adults and young-of-the-year (YOY) fish were predicted using a model based on observed distribution of different age groups as a function of temperature and light profiles simulated on a daily basis. Mortality rates averaged over the growing season were calculated as a function of fish densities and overlap between adults and YOY. Survival of YOY rainbow smelt and alewife depended on which predator was most abundant. Rainbow smelt YOY mortality rates are highest when rainbow smelt adults are abundant, and alewife YOY mortality rates are highest when alewife adults are abundant, potentially allowing coexistence. August and September mortality rates were higher in the climate change scenario because of increased overlap of adults and YOY of both species. These results indicate that accounting for spatiotemporal fish distribution patterns can be important when forecasting the interacting effects of climate change and aquatic invasive species on fish recruitment.

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Section: Climate Change Scenariosupporting

confidence: 58%

Section: R a F T Introductionmentioning

confidence: 99%

Early mortality and freshwater forage fish recruitment: nonnative alewife and native rainbow smelt interactions in Lake Champlain

Simonin

Rudstam

Sullivan

et al. 2019

Can. J. Fish. Aquat. Sci.

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“…Following the period of high exploitation rate, nearly a quarter of the analysed YoY smelt started to mature at a tenfold lower TW and 2-3 years younger than before the 1980s. 22% of individuals with a TL of <10 cm had maturing gonads in 2012, while only one maturing YoY smelt was observed in pre-1980, which indicates that these changes may be human-induced by overfishing or triggered environmentally [9].…”

Section: Commercial Fisherymentioning

confidence: 99%

“…This phenomenon can be accompanied by size-selective harvesting that eliminates the faster-growing genotypes, favouring slow-growing individuals that mature at smaller sizes and younger ages [5][6][7][8]. Such shifts time of maturation might have drastic consequences for fish population dynamics, as the share of early maturing individuals will increase in population [9].…”

Section: Introductionmentioning

confidence: 99%

Maturation at a young age and small size of European smelt (Osmerus eperlanus): A consequence of population overexploitation or climate change?

et al. 2017

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Age of fish at maturation depends on the species and environmental factors but, in general, investment in growth is prioritized until the first sexual maturity, after which a considerable and increasing proportion of resources are used for reproduction. The present study summarizes for the first the key elements of the maturation of European smelt (Osmerus eperlanus) young of the year (YoY) in the North-eastern Gulf of Riga (the Baltic Sea). Prior to the changes in climatic conditions and collapse of smelt fishery in the 1990s in the Gulf of Riga, smelt attained sexual maturity at the age of 3-4 years. We found a substantial share (22%) of YoY smelt with maturing gonads after the collapse of the smelt fisheries. Maturing individuals had a significantly higher weight, length and condition factor than immature YOY, indicating the importance of individual growth rates in the maturation process. The proportion of maturing YoY individuals increased with fish size. We discuss the factors behind prioritizing reproduction overgrowth in early life and its implications for the smelt population dynamics.

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“…A variety of factors influencing SR estimates has been suggested, e.g. time‐series bias (Walters, 1985), observation (Walters & Ludwig, 1981), and process errors (Linton & Bence, 2008), productivity regimes (Gilbert, 1997; Vert‐pre et al, 2013), and nonstationary dynamics (Feiner et al, 2015; Quinn & Deriso, 1999). Biological and ecological aspects such as age structure, spatial distribution, fecundity and spawning patterns are also known to influence the variation in recruitment (Green, 2008; Shelton et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

From spawner habitat selection to stock‐recruitment: Implications for assessment

Skoglund

Whitlock

Petersson

et al. 2022

Ecology and Evolution

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Non-stationary recruitment dynamics of rainbow smelt: The influence of environmental variables and variation in size structure and length-at-maturation

Cited by 18 publications

References 104 publications

Early mortality and freshwater forage fish recruitment: nonnative alewife and native rainbow smelt interactions in Lake Champlain

Early mortality and freshwater forage fish recruitment: nonnative alewife and native rainbow smelt interactions in Lake Champlain

Maturation at a young age and small size of European smelt (Osmerus eperlanus): A consequence of population overexploitation or climate change?

From spawner habitat selection to stock‐recruitment: Implications for assessment

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