Nature versus nurture? Consequences of short captivity in early stages

Hórreo, José Luis; Valiente, America G.; Ardura, Alba; Blanco, Aída; García-González, Claudia; García‐Vázquez, Eva

doi:10.1002/ece3.3555

Cited by 21 publications

(26 citation statements)

References 73 publications

(138 reference statements)

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“…, but see Horreo et al. ). Our review already includes recommendations to reduce unintended selection such as diversified provenancing (over different habitats and times), intentionally promoting gene flow, and matching the nursery and reef environments as closely as possible (Frankham , Espeland et al.…”

Section: Future Research Needsmentioning

confidence: 98%

“…, Horreo et al. , O'Donnell et al. ), although the strength of the selection is not yet known but could be estimated.…”

Section: Future Research Needsmentioning

confidence: 99%

“…The recommendations in this review are based on the best available science, but knowledge gaps exist that should be the focus of future research. In general, it has to be recognized that nursery rearing of both larvae and adult fragments imposes unintended selection for nursery-adapted genets (Christie et al 2012, Morvezen et al 2016, Horreo et al 2018, O'Donnell et al 2018, although the strength of the selection is not yet known but could be estimated. For example, larval culturing selects gametes and larvae that can survive netting, highdensity rearing, handling during water changes, settling on artificial substrates, and so on.…”

Section: Future Research Needsmentioning

confidence: 99%

“…For example, larval culturing selects gametes and larvae that can survive netting, highdensity rearing, handling during water changes, settling on artificial substrates, and so on. Data from other systems demonstrate that after removal of initial culture selection, species can adapt to wild conditions rapidly, especially if time spent in captivity is short (Espeland et al 2017, but see Horreo et al 2018). Our review already includes recommendations to reduce unintended selection such as diversified provenancing (over different habitats and times), intentionally promoting gene flow, and matching the nursery and reef environments as closely as possible (Frankham 2008, Espeland et al 2017.…”

Section: Future Research Needsmentioning

confidence: 99%

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Considerations for maximizing the adaptive potential of restored coral populations in the western Atlantic

Baums

Baker

Davies

et al. 2019

Ecological Applications

195

198

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Active coral restoration typically involves two interventions: crossing gametes to facilitate sexual larval propagation; and fragmenting, growing, and outplanting adult colonies to enhance asexual propagation. From an evolutionary perspective, the goal of these efforts is to establish self-sustaining, sexually reproducing coral populations that have sufficient genetic and phenotypic variation to adapt to changing environments. Here, we provide concrete guidelines to help restoration practitioners meet this goal for most Caribbean species of interest. To enable the persistence of coral populations exposed to severe selection pressure from many stressors, a mixed provenance strategy is suggested: genetically unique colonies (genets) should be sourced both locally as well as from more distant, environmentally distinct sites. Sourcing three to four genets per reef along environmental gradients should be sufficient to capture a majority of intraspecies genetic diversity. It is best for practitioners to propagate genets with one or more phenotypic traits that are predicted to be valuable in the future, such as low partial mortality, high wound healing rate, high skeletal growth rate, bleaching resilience, infectious disease resilience, and high sexual reproductive output. Some effort should also be reserved for underperforming genets because colonies that grow poorly in nurseries sometimes thrive once returned to the reef and may harbor genetic variants with as yet unrecognized value. Outplants should be clustered in groups of four to six genets to enable successful fertilization upon maturation. Current evidence indicates that translocating genets among distant reefs is unlikely to be problematic from a population genetic perspective but will likely provide substantial adaptive benefits. Similarly, inbreeding depression is not a concern given that current practices only raise first-generation offspring. Thus, proceeding with the proposed management strategies even in the absence of a detailed population genetic analysis of the focal species at sites targeted for restoration is the best course of action. These basic guidelines should help maximize the adaptive potential of reef-building corals facing a rapidly changing environment.

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Section: Future Research Needsmentioning

confidence: 98%

“…, Horreo et al. , O'Donnell et al. ), although the strength of the selection is not yet known but could be estimated.…”

Section: Future Research Needsmentioning

confidence: 99%

Section: Future Research Needsmentioning

confidence: 99%

Section: Future Research Needsmentioning

confidence: 99%

See 2 more Smart Citations

Considerations for maximizing the adaptive potential of restored coral populations in the western Atlantic

Baums

Baker

Davies

et al. 2019

Ecological Applications

195

198

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“…; Horreo et al. ). Domestication will occur even if broodfish are captured from the wild every generation (Doyle et al.…”

Section: Why Production Management Is Counterproductivementioning

confidence: 97%

Is Good Fish Culture Management Harming Recovery Efforts in Aquaculture‐Assisted Fisheries?

Tave¹,

Hutson²

2019

N American J Aquac

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To make conservation aquaculture successful, a paradigm shift is needed in what is considered good hatchery management as defined by production aquaculture as well as in the metrics that are used to evaluate hatchery success. In production aquaculture, managers strive to maintain exceptional environmental conditions to maximize yield, the number of fish produced, and survival. However, this type of aquaculture management could decrease the likelihood of success of imperiled species recovery programs due to domestication and epigenetics. Consequently, good management practices in conservation aquaculture should produce conditions that resemble the environment where the fish will be stocked in order to minimize domestication and epigenetic problems that will lower the fitness of wild stocks following augmentation. Changes in what are considered good culture conditions require a new set of hatchery evaluation metrics. The key metric that needs to be altered is the survival rate. Survival is the keystone metric because it determines other metrics such as the number produced, yield, and profits. High survival rates influence domestication, which adversely affects post‐augmentation survival and the fitness of the wild stock. Consequently, lower hatchery survival rates produced by selective pressures in conservation aquaculture are needed to improve success in imperiled species recovery programs. We propose that survival be 10–25% to improve success. Our proposed evaluation metrics for conservation aquaculture are to produce “wild” fish and not lower the fitness of the wild population. We recognize that these recommendations are controversial, but a major goal of this paper is to start a discussion about the most appropriate way to evaluate this type of aquaculture so that recovery efforts for imperiled species can be improved.

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Does parental angling selection affect the behavior or metabolism of brown trout parr?

Prokkola

Alioravainen

Mehtätalo

et al. 2021

Ecology and Evolution

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Nature versus nurture? Consequences of short captivity in early stages

Cited by 21 publications

References 73 publications

Considerations for maximizing the adaptive potential of restored coral populations in the western Atlantic

Considerations for maximizing the adaptive potential of restored coral populations in the western Atlantic

Is Good Fish Culture Management Harming Recovery Efforts in Aquaculture‐Assisted Fisheries?

Does parental angling selection affect the behavior or metabolism of brown trout parr?

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