Reproductive Strategies of the Eastern Oyster<i>Crassostrea virginica</i>(Gmelin 1791) in Tropical Lagoons of the Mexican Gulf of Mexico

Aranda, Dalila Aldana; Díaz, Martha Enriquez; Lango-Reynoso, Fabiola; Brulé, Thierry; Montero, Jorge; Cárdenas, Erick Baqueiro

doi:10.2983/035.033.0114

Cited by 15 publications

(6 citation statements)

References 29 publications

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“…However this reproductive effort is difficult to assess since multiple spawning events happen in the summer. Influence of phytoplankton on gametogenesis has been demonstrated within many oyster species (Pouvreau et al, 2001;Fabioux et al, 2004;Fournier et al 2012;Aranda et al 2014). More precisely, Enríquez-Díaz et al (2009) showed for Crassostrea gigas that if temperature was the main factor driving the gametogenesis rate, food availability was responsible of gametogenesis intensity (fecundity).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Pouvreau et al (2001aPouvreau et al ( , 2001b and more recently Fournier et al 2012showed that the black lip pearl oyster Pinctada margaritifera spawning is significantly related to plankton concentration in the water column, the latter acting as a synchronizing factor. Aranda et al (2014) related maturity and spawning stages to total chlorophyll levels within the species C. virginica. The lunar cycle is also supposed to have an influence on spawning synchrony, as it has been demonstrated for corals (Boch et al 2011) and fishes (Taylor 1984, Takemura et al 2004).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…In addition to the environmental potential spawning triggers, oysters may have different behaviors in relation to environmental conditions. For example, Aranda et al (2014) identified two strategies in the spawning behavior of C. virginica: (1) seasonal and synchronous, and 2continuous and asynchronous. They hypothesized that the first strategy occurs when food…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…The second strategy would occur when food availability is irregular; oysters then behave according to an "opportunistic tactic". Considering the ability of oysters to adapt their spawning behavior to environmental conditions (Aranda et al, 2014, Philippart et al, 2014, Jönsson, 1997 is, in our opinion, fundamental to better understand the different reproduction strategies of C. gigas according to the environment they live in. We think that spawning triggers, instead of being considered individually, should probably be considered together, interacting simultaneously or according to a not obvious hierarchy.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Gametogenesis, spawning behavior and larval abundance of the Pacific oyster Crassostrea gigas in the Thau lagoon: Evidence of an environment-dependent strategy

et al. 2017

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The Thau lagoon, located at the South of France, provides 10% of the French pacific oyster Crassostrea gigas production. Despite this intensive shellfish production, the larval recruitment of this species within the Thau lagoon is still misunderstood and spat collection remains highly variable; as a consequence, shellfish farmers rely mostly on hatchery"s spat. The present study aimed to describe reproduction features of C. gigas within the Mediterranean, as well as to explore spawning triggers of this species. To achieve this goal, the reproduction cycle from gametogenesis to spawning was followed during two years in several locations within the Mediterranean Thau lagoon. The spawning behavior of C. gigas within the Thau lagoon appeared to be slightly different from the one of the Atlantic Coast, showing several spawning events from June to October. The minimal temperature for massive spawning was 23 °C, which is much higher than temperatures mentioned in the literature for this species. A strong relationship was found between phytoplankton communities and gametogenesis, the latter being improved by a higher diatom/dinoflagellate ratio. Temperature was insufficient alone to explain spawning, highlighting other potential triggers such as the moon or lightning strikes. We made the hypothesis of a hierarchy of events triggering spawning, encompassing locking, synchrony and intensifying triggers. Statement of relevance This paper is filling in a gap in the literature regarding to reproduction of C. gigas in the Thau lagoon, which is always associated to temperature. However, temperature may not be the only factor involved in oyster reproduction, that is what we tried to show in this paper. Highlights ► The reproduction features of Crassostrea gigas were assessed for the first time in a non-tidal Mediterranean lagoon. ► Phytoplankton concentration and assemblages affected gametogenesis, diatoms having a positive effect. ► No spawning event was observed below 22 °C, and 23 °C appeared as a critical temperature for significant spawning events. ► Full and dark moon in combination with high temperature did enhance spawning events. ► A hierarchy of spawning triggers was established, which can help shellfish farmers to better forecast spawning events.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

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Gametogenesis, spawning behavior and larval abundance of the Pacific oyster Crassostrea gigas in the Thau lagoon: Evidence of an environment-dependent strategy

et al. 2017

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“…For example, the reproductive cycle of the Pacific oyster can be shortened from one year to half a year under experimental conditions (Fabioux et al, 2005;Normand et al, 2009). Additionally, some oyster species distributed in subtropical and tropical coasts naturally have multiple reproductive cycles per year, with fast gametogenesis, prolonged spawning, and rapid recovery of gonads after spawning (Aldana Aranda et al, 2014;Castilho-Westphal et al, 2015;Shi et al, 2019). The first functional maturation of gametes of some oyster species can be achieved as young as about 2 or 3 months after fertilization, and these first mature gametes can develop normally and produce viable progeny (Thompson et al, 1996;Zhang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Heritability estimates for gonadal development traits and their genetic correlations with growth and heat tolerance traits in the Fujian Oyster Crassostrea angulata

Han

Guo

et al. 2022

Front. Mar. Sci.

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Improving the progress of breeding is the main purpose of breeders, and shorting the reproductive cycle is one of the ways to improve the breeding progress. Although the reproductive cycle of Crassostrea angulata can be shortened from one year to half a year by selecting precocious individuals, little is known about whether this selection will accelerate their gonadal development or disturb their selection for productive traits. Here, the heritability of gonadal development traits (gametogenic stage and egg diameter) and their genetic correlations with both growth traits (shell height at 4 and 12 months and total body weight at 12 months) and heat tolerance trait were estimated. The heritability for gametogenic stage was low (0.18 ± 0.09), while the egg diameter showed a high heritability (0.78 ± 0.30). These results suggest that selection for precocious individuals has little effect on the rate of gonadal development in the C. angulata, despite the effect may be greater in females than in males. The genetic correlations between gonadal development traits and both growth (-0.02–0.30) and heat tolerance traits (-0.08–0.34) were low and non-significant. These results suggest that selection for precocious individuals has negligible effects on their productive traits. Therefore, it is feasible to double the breeding efficiency of C. angulata by halving their reproductive cycle.

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Caveat observator: the many faces of pre-spawning atresia in marine bivalve reproductive cycles

Beninger

2017

Mar Biol

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Reproductive Strategies of the Eastern OysterCrassostrea virginica(Gmelin 1791) in Tropical Lagoons of the Mexican Gulf of Mexico

Cited by 15 publications

References 29 publications

Gametogenesis, spawning behavior and larval abundance of the Pacific oyster Crassostrea gigas in the Thau lagoon: Evidence of an environment-dependent strategy

Gametogenesis, spawning behavior and larval abundance of the Pacific oyster Crassostrea gigas in the Thau lagoon: Evidence of an environment-dependent strategy

Heritability estimates for gonadal development traits and their genetic correlations with growth and heat tolerance traits in the Fujian Oyster Crassostrea angulata

Caveat observator: the many faces of pre-spawning atresia in marine bivalve reproductive cycles

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