ECOSCOPA network : National monitoring network of mortality and growth rates of the sentinel oyster Crassostrea gigas ...

• Main Authors: Fleury, Elodie, Pouvreau, Stephane, Petton, Sébastien
• Format: Dataset
• Language: unknown
• Published: SEANOE 2023
• Subjects: Crassostrea gigas; Pacific oyster
• Online Access: https://dx.doi.org/10.17882/53007; https://www.seanoe.org/data/00419/53007/

The network was initiated by IFREMER from 1993 to 2009 (under the acronym REMORA) to study the rearing performance of the Pacific oyster Crassostrea gigas at a national scale. To do so, the network monitored annually the mortality and growth of standardized batches of 18-month-old oysters. Starting in 1995, the monitoring of the rearing performance of 6-month-old oyster spat was integrated into this network. These sentinel batches were distributed simultaneously each year on 43 sites and were monitored quarterly. These sites were distributed over the main French oyster farming areas and allowed a national coverage of the multiannual evolution of oyster farming performances. Most of the sites were located on the foreshore at comparable levels of immersion. Field studies were carried out by the "Laboratoires Environnement Ressources" (LER) for the sites included in their geographical area of investigation. Following the increase in spat mortality in 2008, the network evolved in 2009 (under the acronym RESCO). ...