Change in individual growth rate and its link to gill-net fishing in two sympatric whitefish species

Nusslé, Sébastien; Bréchon, Amanda; Wedekind, Claus

doi:10.1007/s10682-010-9412-3

Cited by 13 publications

(9 citation statements)

References 57 publications

(74 reference statements)

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“…A notable exception is the empirical study of Nusslé et al. () study reporting 2.1–2.8% chance in logarithmic growth rates of Coregonus fish is lakes (Table S1 and fastest rates of GRO in Fig. ).…”

Section: Discussionmentioning

confidence: 99%

How fast is fisheries‐induced evolution? Quantitative analysis of modelling and empirical studies

Audzijonytė

Kuparinen

Fulton

2013

Evolutionary Applications

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A number of theoretical models, experimental studies and time-series studies of wild fish have explored the presence and magnitude of fisheries-induced evolution (FIE). While most studies agree that FIE is likely to be happening in many fished stocks, there are disagreements about its rates and implications for stock viability. To address these disagreements in a quantitative manner, we conducted a meta-analysis of FIE rates reported in theoretical and empirical studies. We discovered that rates of phenotypic change observed in wild fish are about four times higher than the evolutionary rates reported in modelling studies, but correlation between the rate of change and instantaneous fishing mortality (F) was very similar in the two types of studies. Mixed-model analyses showed that in the modelling studies traits associated with reproductive investment and growth evolved slower than rates related to maturation. In empirical observations age-at-maturation was changing faster than other life-history traits. We also found that, despite different assumption and modelling approaches, rates of evolution for a given F value reported in 10 of 13 modelling studies were not significantly different.

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Section: Discussionmentioning

confidence: 99%

How fast is fisheries‐induced evolution? Quantitative analysis of modelling and empirical studies

Audzijonytė

Kuparinen

Fulton

2013

Evolutionary Applications

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“…Considering such results, [85] warned that continued stocking could affect the ability of the population to adapt to environmental changes, because natural selection processes were being artificially circumvented. Indeed, management activities such as changes in system productivity, size-selective har-vest and massive stocking events have all been shown to influence coregonid reproductive traits [67]- [69]. As an example, when gillnets are used exclusively to collect adults for breeding, females with larger girth and hence higher fecundity will disproportionately contribute offspring to the stocked cohort.…”

Section: Impacts Of Stocking On Whitefish Diversitymentioning

confidence: 99%

Impact of Fishing and Stocking Practices on Coregonid Diversity

Anneville¹,

Lasne²,

Guillard³

et al. 2015

FNS

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Fish species diversity can be lost through interacting stressors including habitat loss, stocking and overfishing. Although a multitude of stressors have played a role in the global decline of coregonid (Coregonus spp.) diversity, a number of contemporary studies have identified habitat loss stemming from eutrophication as the primary cause. Unfortunately, reconstructing the role of fishing and stocking practices can be difficult, because these records are incomplete or appear only in hard-to-access historic grey literature. Based on an illustrative set of historic and contemporary studies, we describe how fisheries management practices may have contributed to coregonid diversity loss in European and North American lakes. We provide case studies examining how fishing and stocking may reduce coregonid diversity through demographic decline and introgressive hybridization. In some lakes, fisheries management practices may have led to a loss of coregonid diversity well before issues with habitat degradation manifested. Our review suggests that fish conservation policies could beneficially consider the relative importance of all stressors, including management practices, as potential drivers of diversity loss.

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“…Furthermore, few studies have tested whether the intensity of selection imposed by harvesting is comparable to the magnitude of phenotypic changes observed (Swain et al . 2007; Nusslé et al . 2011), or estimated the proportion of phenotypic trait variance explained by the genotypes (the heritability, h 2 , of traits) in wild populations (Law 2007).…”

mentioning

confidence: 99%

Experimental harvesting of fish populations drives genetically based shifts in body size and maturation

Wijk

Taylor

Creer

et al. 2013

Frontiers in Ecol & Environ

102

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Size‐selective harvesting in commercial fisheries can induce rapid changes in biological traits. While experimental and wild harvested populations often exhibit clear shifts in body size and maturation associated with fishing pressure, the relative contributions of genetic and environmental factors to these shifts remain uncertain and have been much debated. To date, observations of so‐called fisheries‐induced evolution (FIE) have been based solely on phenotypic measures, such as size data. Genetic data are hitherto lacking. Here, we quantify genetic versus environmental change in response to size‐selective harvesting for small and large body size in guppies (Poecilia reticulata) across three generations of selection. We document for the first time significant changes at individual genetic loci, some of which have previously been associated with body size. In contrast, variation at neutral microsatellite markers was unaffected by selection, providing direct genetic evidence for rapid evolution induced by size‐selective harvesting. These findings demonstrate FIE in an experimental system, with major implications for the sustainability of harvested populations, as well as impacts on size‐structured communities and ecosystem processes. These findings highlight the need for scientists and managers to reconsider the capacity of harvested stocks to adapt to, and recover from, harvesting and predation.

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Change in individual growth rate and its link to gill-net fishing in two sympatric whitefish species

Cited by 13 publications

References 57 publications

How fast is fisheries‐induced evolution? Quantitative analysis of modelling and empirical studies

How fast is fisheries‐induced evolution? Quantitative analysis of modelling and empirical studies

Impact of Fishing and Stocking Practices on Coregonid Diversity

Experimental harvesting of fish populations drives genetically based shifts in body size and maturation

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