Effects of temperature and photoperiod on the conditioning of the flat oyster (<i>Ostrea edulis</i>
 L.) in autumn

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

doi:10.1111/are.13280

Cited by 17 publications

(18 citation statements)

References 20 publications

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“…The importance of temperature in molluscan reproduction has been thoroughly described (e.g. Fabioux, Huvet, Le Souchu, Le Pennec, & Pouvreau, ; Maneiro, Silva, Pazos, Sánchez, & Pérez‐Parallé, ; Mann, ), but the role of nutrition in quantitative aspects of reproduction is being recognized increasingly (e.g. Enriquez‐Diaz, Pouvreau, Chavez‐Villalba, & Le Pennec, ).…”

Section: Introductionmentioning

confidence: 99%

Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement

González‐Araya

Robert

2018

Aquac Res

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Survival, growth and fatty acid composition of Ostrea edulis larvae (L.) fed four different single species, microalgal diets, Tisochrysis lutea (T), Chaetoceros neogracile (Cg), Skeletonema marinoi (Sm) or Tetraselmis suecica (Ts) from broodstock to pre‐settlement, were studied. Lower larval growth (5.5 μm to 6.5 μm/d) was recorded in progeny continuously fed single S. marinoi or T. suecica, whereas good growth was achieved with single T. lutea (7.8 μm/d). Larvae, originated from broodstock receiving Sm or Ts, exhibited growth compensation when fed a bispecific balanced diet (TCg). This did not occur when broodstock and larvae were fed Cg or T, for which single or mixed diets led to similar larval growth. Furthermore, survival was high (>90%) regardless of microalgal diet, except for larvae fed from broodstock to pre‐settlement T (53%) or Ts (2%). There were significant differences in 20:5 (n‐3) and 22: 6 (n‐3) contents in polar and neutral fractions of O. edulis expelled larvae dependent on broodstock diet, as well as throughout larval development, but no clear trend was apparent when comparing fatty acid (FA) relative composition of both fractions of O. edulis larvae fed different diets at release or prior to settlement. In contrast, such correlation occurred when FA was expressed in absolute content but exclusively for larvae‐fed single diets and was particularly noticeable between 22: 6 (n‐3) and growth and survival. In the present work, broodstock nutritional deficiencies have been revealed in O. edulis progeny, compensated thereafter by feeding the larvae a mixed diet, and in this balanced condition, no obvious relation with larval development indicators was found with main fatty acid contents.

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Section: Introductionmentioning

confidence: 99%

Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement

González‐Araya

Robert

2018

Aquac Res

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“…It is known that elevated temperatures increase metabolism, accelerate rates of oxygen consumption and ammonia excretion but also accelerate gametogenesis and gonadal development in bivalves (Chávez-Villalba et al, 2003;Pérez et al, 2013;Santerre et al, 2013;Shpigel et al, 1992;Teaniniuraitemoana et al, 2016). Indeed, others have previously reported that the gonadal volume occupied by germinal cells almost doubled for oysters conditioned under a gradient of temperature between 14 and 18°C compared to those oysters kept at 15°C, indicating that change in temperature could trigger and accelerate this process (Maneiro et al, 2017).…”

Section: Effect Of Temperature Treatments On Gametogenesismentioning

confidence: 98%

Effects of the interaction between temperature and steroid hormones on gametogenesis and sex ratio in the European flat oyster (Ostrea edulis)

Zapata-Restrepo

Hauton

Williams

et al. 2019

Comparative Biochemistry and Physiology Part A: Molecular &

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“…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%

“…This rapid change, and gonads not emptying completely when male gametes are released, may result in the presence of both types of gametes within one oyster (Martin et al 1997). Male and female gametes are present in the oyster follicles at the same time but with different stages of maturation (Maneiro et al 2017b).…”

Section: Sex Change and Sex Ratiomentioning

confidence: 99%

“…As daylight has also been shown to have a profound influence on other mollusc species, the positive effect of a prolonged photoperiod on the gonadal development (also called sexual glands, gonadal glands or gonads) of O. edulis during autumn and winter conditioning (light intensity reflecting the spring conditions in the environment) was shown in experimental hatchery conditions (Maneiro et al 2016;Maneiro et al 2017b).…”

Section: Gametogenesismentioning

confidence: 99%

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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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Effects of temperature and photoperiod on the conditioning of the flat oyster (Ostrea edulis L.) in autumn

Cited by 17 publications

References 20 publications

Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement

Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement

Effects of the interaction between temperature and steroid hormones on gametogenesis and sex ratio in the European flat oyster (Ostrea edulis)

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

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