Croissance et mortalite des huitres dans la lagune de Oualidia (Maroc)

Shafee, M. S.; Sabatié, Marc-Richard

doi:10.1016/0044-8486(86)90351-0

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…Growth rate is known to be greatest during the first year of an oyster's life and then to decrease (Berthome et al, 1986;Shafee and Sabatie, 1986;Mitchell et al, 2000). Brown and Hartwick (1988), comparing spat in British Colombia (Canada), observed growth rates ranging from 34 to 120% for one-year-old spat and from 163 to 298 % for younger spat.…”

Section: Growthmentioning

confidence: 99%

Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas)

et al. 2005

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Summer mortality has been reported in the Pacific oyster, Crassostrea gigas, for many years in different parts of the world. The causes of this phenomenon are complex. The multidisciplinary program "MOREST", coordinated by IFREMER, was initiated to understand the causes of summer mortality of Crassostrea gigas juveniles in France and to reduce its impact on oyster production. Within this program, three successive groups of bi-parental families were bred in a hatchery in 2001 and placed in the field during summer in three sites (Ronce, Rivière d'Auray, and Baie des Veys). This paper reports the relative importance of family, site and field placement timing for three characters of major importance for oyster production: survival, growth, and yield. At the end of the summer period, significant differences for the three characters were observed among sites and families for each group. Family effect was the largest variance component for survival, representing 46% of the total. Variance component analysis revealed that variation in yield among families depended either on survival or on growth according to the site. Significant family × environment interactions were observed for yield and survival but not for growth. No difference in survival was found among groups in the three sites at the end of the experiment, but a critical period of mortality was identified from late July until early September. The influence of environmental conditions, notably on reproductive allocation and its relationship with the studied traits, is discussed.

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Section: Growthmentioning

confidence: 99%

Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas)

et al. 2005

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“…The lagoon is shallow, the channel depth is not uniform and decreases upstream. During a low tide mark of spring tides, it varies depending on the location from 0.20 m to 1.80 m (Shafee and Sabatie, 1986).…”

Section: Materials and Methods:-mentioning

confidence: 99%

Nutrients Variation in the Coastal Waters of Oualidia Lagoon, Morocco, in Relation to the Contribution of Watershed and Hydro-Chemical Characteristics.

Hassou¹,

Boujaber²,

Oumaskour³

et al. 2016

IJAR

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“…Jusqu'en 2005, la digue aval artificielle était quasiment «fermée» présentant une brèche de 10m 2 environ communiquant avec la lagune, limitant ainsi le domaine étudié de la lagune entre les passes d'entrée et cette digue aval (figure 1). De par son importance socio-économique pour la région, cette lagune a fait l'objet de diverses études visant les aspects sédimentologiques, géologiques et biogéochimiques (Bidet, 1981;Carruesco, 1989;Damsiri et al, 2015;El Khalidi et al, 2011;Maanan et al, 2014;Sarf, 1999;Zourarah, 2002…), biologiques (Bennouna, 1999(Bennouna, , 2002Ouledessaïb,1997, …); environnementaux et liés à la pollution (Cheggour et al, 1999;El Attar, 1998;Hassou et al, 2014;Hennani et al, 2014;Lakhdar et al, 2005;Idardare et al, 2014;…); les aspects liés à l'aquaculture (Berraho;Rharbi et al, 2001Rharbi et al, , 2003INRH, 2002;Kamara et al, 2005Kamara et al, , 2008Shafee et Sabatie 1986,…). Les études portant sur les aspects hydrodynamiques sont plus récentes mais peu nombreuses.…”

Section: …………………………………………………………………………………………………… Introduction:-unclassified

Fonctionnement Hydrodynamique De La Lagune De Oualidia (Maroc) Avant L’amenagement De La Souille.

Hilmi¹,

Ettahiri²,

Idrissi³

et al. 2017

IJAR

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Croissance et mortalite des huitres dans la lagune de Oualidia (Maroc)

Cited by 11 publications

References 7 publications

Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas)

Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas)

Nutrients Variation in the Coastal Waters of Oualidia Lagoon, Morocco, in Relation to the Contribution of Watershed and Hydro-Chemical Characteristics.

Fonctionnement Hydrodynamique De La Lagune De Oualidia (Maroc) Avant L’amenagement De La Souille.

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