Cited by 45Marine Bivalve and Aquaculture StudiesReproductive biology and impacts on aquatic speciesMarine Biology and Ecology Research

In situ spawning in a marine broadcast spawner, the Pacific oyster C rassostrea gigas : Timing and environmental triggers: Spawning in Oysters

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Bernard, I., Massabuau, J.-C., Ciret, P., Sow, M., Sottolichio, A., Pouvreau, S., Tran, D.·2016·Limnology and Oceanography

Abstract

The precise environmental conditions under which broadcast spawners spawn in the field remain largely unknown. We investigated this issue in the oyster Crassostrea gigas using three different methods at different time scales in two traditional oyster farming areas of the French Atlantic Coast, the Bay of Arcachon and Marennes-Oléron. We directly recorded spawning at high temporal resolution using high-frequency non-invasive (HFNI) valvometry from 2007–2014 and measured the dry mass and oyster larvae abundance in 2008 and 2009. We analyzed a 29-yr series of oyster D-larvae numbers in the Bay of Arcachon (1982–2010). By combining these three approaches, we demonstrated that during the summer months at both sites, spawning in C. gigas occurs in the morning or during the evening, essentially at high tide of perigean spring tides, independent of the positions of these oysters, above or below the lowest water level. We characterized the associated water currents at the spawning location in the Bay of Arcachon and observed that spawning systematically occurs during the early phase of a water current peak, at the beginning of ebbing. We propose that this water current peak acts as a final trigger for spawning. These results have ecological consequences associated with gamete encounters and the dispersal of fertilized eggs (zygotes).

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  • Potential effects of the anomalistic cycle on biological rhythmicity approximating the synodic month have been shown in Crassostrea gigas, both at the behavioral and reproductive levels.

    “However, it is interesting to report that potential effects of the anomalistic cycle on biological rhythmicity approximating the synodic month have been shown in Crassostrea gigas, both at the behavioral and reproductive levels [6,9].”

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Research works printed but not linked: 2

  1. His, E. 1976. Contribution a l' etude biologique de l'Huître dans le Bassin d'Arcachon, activit e valvaire de Crassostrea angulata et de Crassostrea gigas; application a l' etude de la reproduction de l'Huître Japonaise. Ph.D. thesis. Uni- versit e Bordeaux 1. http://archimer.ifremer.fr/doc/1976/ these-3352.pdf
  2. Serrão, E. A., and J. Havenhand. 2009. Fertilization strategies, p. 149-164. In M. Wahl [ed.], Marine hard bottom com- munities, v. 206. Ecological Studies. Springer-Verlag Berlin Heidelberg. doi:10.1007/978-3-540-92704-4_10 · DOI

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Authors
Bernard, I., Massabuau, J.-C., Ciret, P., Sow, M., Sottolichio, A., Pouvreau, S., & Tran, D.
Affiliations
  • Ifremer (FR)
  • Centre National de la Recherche Scientifique (FR)
  • Ifremer, UMR 6539 LEMAR; Site d'Argenton, Presqu'île du Vivier Argenton France
Corresponding author
Massabuau, J.-C.
Venue
Limnology and Oceanography
Publisher
Wiley
Published
2016-02-08
Volume
61
Issue
2
Pages
635-647
ISSN
0024-3590 (ISSN-L)
OpenAlex
W2270969243
Cited by
45
References
61
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 8 · 2022: 3 · 2021: 2 · 2020: 6 · 2019: 1 · 2018: 9 · 2017: 7 · 2016: 1
FWCI
4.44
Type
journal article
Language
en
Open access
Locations
  • Limnology and Oceanography (publishedVersion)
  • Oskar-Bordeaux (Universite de Bordeaux) (submittedVersion)
  • HAL (submittedVersion)
  • Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion)
Funders
  • Centre National de la Recherche Scientifique
  • Université de Bordeaux
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine Bivalve and Aquaculture Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Reproductive biology and impacts on aquatic species
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
Keywords
Crassostrea gigas, broadcast spawning, spawning timing, environmental triggers, water currents, Marennes-Oléron, oyster aquaculture

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