Phylogeny and phylogeography of Atlantic oyster species: evolutionary history, limited genetic connectivity and isolation by distance

Lazoski, Cristiano; Gusmão, Jaqueline; Boudry, Pierre; Solé‐Cava, Antônio M.

doi:10.3354/meps09035

Cited by 85 publications

(55 citation statements)

References 65 publications

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“…Broodstock and larvae were sampled for identification with molecular biology techniques as described by Melo et al (2010) and Lazoski et al (2011). The molecular analyzes were performed at Laboratório de Biodiversidade Molecular, at Universidade Federal do Rio de Janeiro.…”

Section: Methodsmentioning

confidence: 99%

“…The nursery and grow-out lanterns were cleaned twice and once a month, respectively, to remove mud and fouling organisms. After five months of culture in the grow-out from Florianópolis, state of Santa Catarina, South of Brazil, to the state of Pará, in the North (Melo et al, 2010;Lazoski et al, 2011), but with a discontinuity in the coast of Bahia, Northeastern Brazil, possibly due to inefficient sampling.…”

Section: Methodsmentioning

confidence: 99%

“…In Brazil, the number of native oyster species is controversial. Lazoski et al (2011) studied the two main Brazilian native oysters and concluded that they are, indeed, two distinct species: Crassostrea rhizophorae (Guilding, 1828) and C. brasiliana (Lamarck, 1819) [Syn. C. gasar (Adanson, 1757)].…”

Section: Introductionmentioning

confidence: 99%

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Growth of Crassostrea gasar cultured in marine and estuary environments in Brazilian waters

Lopes

Gomes

Tureck

et al. 2013

Pesq. agropec. bras.

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-The objective of this work was to evaluate the growth of the mangrove oyster Crassostrea gasar cultured in marine and estuarine environments. Oysters were cultured for 11 months in a longline system in two study sites -São Francisco do Sul and Florianópolis -, in the state of Santa Catarina, Southern Brazil. Water chlorophyll-α concentration, temperature, and salinity were measured weekly. The oysters were measured monthly (shell size and weight gain) to assess growth. At the end of the culture period, the average wet flesh weight, dry flesh weight, and shell weight were determined, as well as the distribution of oysters per size class. Six nonlinear models (logistic, exponential, Gompertz, Brody, Richards, and Von Bertalanffy) were adjusted to the oyster growth data set. Final mean shell sizes were higher in São Francisco do Sul than in Florianópolis. In addition, oysters cultured in São Francisco do Sul were more uniformly distributed in the four size classes than those cultured in Florianópolis. The highest average values of wet flesh weight and shell weight were observed in São Francisco do Sul, whereas dry flesh weight did not differ between the sites. The estuary environment is more promising for the cultivation of oysters.Index terms: mangrove oyster, mariculture, nonlinear models. Crescimento de Crassostrea gasar cultivada em ambientes marinho e estuarino em águas brasileirasResumo -O objetivo deste trabalho foi avaliar o crescimento da ostra-do-mangue Crassostrea gasar cultivada em ambiente marinho e estuarino. As ostras foram cultivadas por 11 meses em sistema de espinhel, em dois locais de estudo -São Francisco do Sul e Florianópolis -, em Santa Catarina. A concentração de clorofila-α, a temperatura e a salinidade da água foram registradas semanalmente. As ostras foram medidas mensalmente (tamanho da concha e ganho de peso) para avaliar o crescimento. No final do período de cultivo, os pesos médios de carne úmida, carne seca e concha foram determinados, bem como a distribuição das ostras por classes de tamanho. Seis modelos não lineares (logístico, exponencial, Gompertz, Brody, Richards e Von Bertalanffy) foram ajustados aos dados de crescimento das ostras. As médias finais de tamanho da concha foram maiores em São Francisco do Sul do que em Florianópolis. Além disso, as ostras cultivadas em São Francisco do Sul apresentaram distribuição mais uniforme nas classes de tamanho do que aquelas cultivadas em Florianópolis. Os maiores valores médios de peso de carne úmida e peso de concha foram observados em São Francisco do Sul, enquanto o peso da carne seca não diferiu entre os locais. O ambiente estuarino é mais promissor para o cultivo de ostras.Termos para indexação: ostra-do-mangue, maricultura, modelos não lineares.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Growth of Crassostrea gasar cultured in marine and estuary environments in Brazilian waters

Lopes

Gomes

Tureck

et al. 2013

Pesq. agropec. bras.

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“…The specimens of the oyster Crassostrea gasar (= C. brasiliana) used in this study was previously identified to the species level using molecular techniques (Lazoski et al, 2011). Oysters measuring between 43 and 70 mm in height (Galtsoff, 1964) were stocked in suspended longline lanterns.…”

Section: Field Experimentsmentioning

confidence: 99%

The reproductive cycle of the oyster Crassostrea gasar

et al. 2014

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The purpose of this study was to analyze the reproductive cycle of the oyster Crassostrea gasar (= C. brasiliana) in the field and the laboratory. The reproductive cycle of the animals was evaluated in the field at Sambaqui Beach, Florianópolis, SC (27° 29'18" S and 48° 32'12" W) from May 2008 through November 2009. In July, the animals were in the resting stage. The early growth stage began in August and was followed by the late growth stage in October. In November and December, the oysters began to enter the mature stage. Females in spawning condition were predominant during these months. The stages of the reproductive cycle were positively associated with temperature (r=0.77, P<0.01) and negatively associated with salinity (r=-0.56, P=0.042). These findings demonstrated that increased temperature and reduced salinity influence the reproductive development of Crassostrea gasar. The condition index (CI) of the animals was also associated with the seawater temperature. The highest values of the condition index were observed during the months when the temperature of the seawater was gradually increasing. A laboratory experiment was performed to test the effect of salinity on the reproductive cycle of the oysters. The experiment was conducted in standardized tanks. The animals were conditioned using two salinities (24‰ and 34‰). The salinity regime influenced the development of the gonadal tissue of the oysters. A salinity of 24‰ produced greater reproductive development.Keywords: oysters, reproductive cycle, Crassostrea gasar, conditioning. Ciclo reprodutivo da ostra Crassostrea gasar ResumoO presente estudo teve como objetivo avaliar o ciclo reprodutivo da ostra Crassostrea gasar, em campo e em laboratório. O estádio de desenvolvimento do ciclo reprodutivo dos animais foi acompanhado na Praia do Sambaqui/Florianópolis/ SC (27°29'18"S e 48°32'12"W) entre maio de 2008 e novembro de 2009. No mês de julho os animais encontravamse no estádio de repouso e entre os meses de agosto a outubro, as ostras seguiram nos estádios de pré-maturação e maturação. Entre os meses de novembro e dezembro, as ostras começaram a ser encontradas no estádio maturo, havendo predominância de fêmeas aptas a eliminação de gametas. Houve associação positiva (r=0,77; P<0,01) entre o estádio de desenvolvimento do ciclo reprodutivo das ostras e a temperatura, bem como associação negativa com a salinidade (r=-0,56; P=0,042), demonstrando que tanto o aumento da temperatura como a redução da salinidade são fatores ambientais que influenciam no desenvolvimento reprodutivo das ostras dessa espécie. O índice de condição (IC) dos animais, também teve relação com a temperatura da água do mar, sendo os maiores índices observados nos meses em que a temperatura da água do mar teve aumento gradativo. Também foi realizado um experimento em laboratório visando testar o efeito da salinidade da água sobre o desenvolvimento reprodutivo das ostras. Para tanto, os animais foram condicionados em tanques padronizados e testaram-se duas salinidades (24‰ e 3...

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“…Molecular studies (Varela et al 2007;Melo et al 2010a;Melo et al 2010b;Lazoski et al 2011) from the Atlantic coast of South America indicated the existence of four species of Crassostrea distributed in natural beds, including two native species Crassostrea gasar (Adanson, 1757; sin. Crassostrea brasiliana Lamarck 1819) and Crassostrea rhizophorae (Guilding 1828), and two non-native Indo-Pacific oysters, Crassostrea gigas (Thunberg, 1793) and Crassostrea sp (Gardunho et al 2012).…”

mentioning

confidence: 99%

Novel Microsatellite Markers for Brazilian Mangrove Oysters ( Crassostrea gasar ) and their Cross-Amplification in Crassostrea rhizophorae

Baldez

Melo

Sampaio

et al. 2016

Braz. arch. biol. technol.

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Phylogeny and phylogeography of Atlantic oyster species: evolutionary history, limited genetic connectivity and isolation by distance

Cited by 85 publications

References 65 publications

Growth of Crassostrea gasar cultured in marine and estuary environments in Brazilian waters

Growth of Crassostrea gasar cultured in marine and estuary environments in Brazilian waters

The reproductive cycle of the oyster Crassostrea gasar

Novel Microsatellite Markers for Brazilian Mangrove Oysters ( Crassostrea gasar ) and their Cross-Amplification in Crassostrea rhizophorae

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