Combined Effects of Temperature and Photoperiod on the Conditioning of the Flat Oyster (<i>Ostrea edulis</i>[Linnaeus, 1758]) in Winter

Maneiro, Verónica; Pérez‐Parallé, M. Luz; Pazos, A.; Silva, A.; Sánchez, José L.

doi:10.2983/035.035.0115

Cited by 12 publications

(17 citation statements)

References 16 publications

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“…, Oates , Maneiro et al. ), influences sex determination (Santerre et al. ) and, in many species, triggers spawning (Fabioux et al.…”

Section: Introductionmentioning

confidence: 99%

“…To best predict whether intergenerational carryover effects will be beneficial or detrimental, it is also crucial to understand how warming and acidification will impact fertility and reproductive phenology. Temperature is a major driver of bivalve reproduction, and modulates gametogenesis (Joyce et al 2013, Oates 2013, Maneiro et al 2016, influences sex determination (Santerre et al 2013) and, in many species, triggers spawning (Fabioux et al 2005) (alongside other factors such as photoperiod, nutrition, lunar/tidal phases). Year-round warming may result in unexpected impacts to larval competency resulting from changes to reproduction.…”

Section: Introductionmentioning

confidence: 99%

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Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Spencer

Venkataraman

Crim

et al. 2020

Ecological Applications

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Predicting how populations will respond to ocean change across generations is critical to effective conservation of marine species. One emerging factor is the influence of parental exposures on offspring phenotype, known as intergenerational carryover effects. Parental exposure may deliver beneficial or detrimental characteristics to offspring that can influence larval recruitment patterns, thus shaping how populations and community structure respond to ocean change. Impacts of adult exposure to elevated winter temperature and pCO2 on reproduction and offspring viability were examined in the Olympia oyster (Ostrea lurida) using three populations of adult, hatchery‐reared O. lurida, plus an additional cohort spawned from one of the populations. Oysters were sequentially exposed to elevated temperature (+4°C, at 10°C), followed by elevated pCO2 (+2,204 μatm, at 3,045 μatm) during winter months. Male gametes were more developed after elevated temperature exposure and less developed after high pCO2 exposure, but there was no impact on female gametes or sex ratios. Oysters previously exposed to elevated winter temperature released larvae earlier, regardless of pCO2 exposure. Those exposed to elevated winter temperature as a sole treatment released more larvae on a daily basis but, when also exposed to high pCO2, there was no effect. These combined results indicate that elevated winter temperature accelerates O. lurida spermatogenesis, resulting in earlier larval release and increased production, with elevated pCO2 exposure negating effects of elevated temperature. Altered recruitment patterns may therefore follow warmer winters due to precocious spawning, but these effects may be masked by coincidental high pCO2. Offspring were reared in common conditions for 1 yr, then deployed for 3 months in four estuarine bays with distinct environmental conditions. Offspring of parents exposed to elevated pCO2 had higher survival rates in two of the four bays. This carryover effect demonstrates that parental conditions can have substantial ecologically relevant impacts that should be considered when predicting impacts of environmental change. Furthermore, Olympia oysters may be more resilient in certain environments when progenitors are pre‐conditioned in stressful conditions. Combined with other recent studies, our work suggests that the Olympia may be more equipped than other oysters for the challenge of a changing ocean.

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“…, Oates , Maneiro et al. ), influences sex determination (Santerre et al. ) and, in many species, triggers spawning (Fabioux et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Spencer

Venkataraman

Crim

et al. 2020

Ecological Applications

View full text Add to dashboard Cite

show abstract

“…As mentioned above in chapter 3.3, other methods (anaesthesia, in vivo magnetic resonance imaging, histology) and protocols exist for determining maturation. As an example, Maneiro et al 2016 describe a method for the determination of gonadal development using histology and stereology techniques.…”

Section: Gametogenesismentioning

confidence: 99%

“…Millican and Helm (1994) showed that microalgae supplements accelerate spawning in O. edulis and increase the number of released larvae. More recently, the positive effect of increased photoperiod and increased temperature on gonadal development, cultch and larval production of the flat oyster during autumn and winter conditioning was reported (Maneiro et al 2016;Maneiro et al 2017b). Using a gradient of daylight (8-16 h) and 4 weeks of conditioning in winter at a temperature gradient of 14-18°C, a successful conditioning of O. edulis oysters was achieved in autumn after 10 weeks (Maneiro et al 2017b) and in winter after 4 weeks (Maneiro et al 2016).…”

Section: Broodstock Conditioningmentioning

confidence: 99%

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Colsoul

Boudry

Pérez‐Parallé

et al. 2021

Reviews in Aquaculture

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The conservation and active restoration of European flat oyster (Ostrea edulis) populations are a major focus of ecological restoration efforts to take advantage of the wide-ranging ecosystem functions and services this species provides. Accordingly, additional and new demands for seed oysters have arisen. In commercial aquaculture (mariculture), the production of O. edulis is still largely based on natural seed collection. Considering the specific requirements, related to ecological restoration, such as the absence of pathogens and the preservation of high genetic diversity, the current supply is insufficient. Despite the development of breeding and controlled reproduction techniques for this species since the late 1930s, seed production today is mainly based on empirical concepts. Several of the issues that producers still face are already subjects of research; many others are still unanswered or even unaddressed. This review provides a summary of all available knowledge and technologies of O. edulis seed production. Furthermore, it provides a detailed reflection on implications for restoration, future challenges, open questions and it identifies relevant research topics for sustainable seed supply. The study covers the following aspects on (i) biology of the species, (ii) stressorsincluding pathogens and pollutants, (iii) genetics, (iv) history of production technologies, (v) seed production in polls, (vi) seed production in ponds and (vii) seed production in hatcheries. Future research needs on sex determinism, gametogenesis, cryopreservation, nutrition, selective breeding, pathogens and disease, and the development of reliable protocols for production are highlighted.

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“…The conditioning of O. edulis broodstock may be improved by manipulating several external factors such as temperature, food supply (diet, food ratio, etc. ), and photoperiod (Maneiro et al, 2016;Maneiro et al, 2017). However, seasonality and the frequency of bivalve reproductive cycle affecting the initial physiological condition vary in relation to geographical distribution.…”

Section: Hatchery and Nurserymentioning

confidence: 99%

Sources of European flat oysters (Ostrea edulis L.) for restoration projects in the Dutch North Sea

Kamermans¹,

Blanco²,

Dalen³

2020

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Combined Effects of Temperature and Photoperiod on the Conditioning of the Flat Oyster (Ostrea edulis[Linnaeus, 1758]) in Winter

Cited by 12 publications

References 16 publications

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Sources of European flat oysters (Ostrea edulis L.) for restoration projects in the Dutch North Sea

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Combined Effects of Temperature and Photoperiod on the Conditioning of the Flat Oyster (Ostrea edulis[Linnaeus, 1758]) in Winter

Cited by 12 publications

References 16 publications

Carryover effects of temperature and pCO2 across multiple Olympia oyster populations

Carryover effects of temperature and pCO2 across multiple Olympia oyster populations

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Sources of European flat oysters (Ostrea edulis L.) for restoration projects in the Dutch North Sea

Contact Info

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Resources

About

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations