Diario Oficial de la Unión Europea del 30/1/2023 - Comunicaciones e Informaciones
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Source: Diario Oficial de la Unión Europea - Comunicaciones e Informaciones
C 34/36
EN
Official Journal of the European Union
30.1.2023
The oysters caught for the production of Grebbestadostron grow on semi-hard sediment beds with a maximum gradient of 45 down to a depth of approximately 10 metres. The seabeds become muddier at greater depths. The oysters do not thrive on such beds. Nor do they thrive on east-facing beds.
The oyster banks are protected from the waves and winds of the open sea by the outer ring of islands in the northern and southern archipelagos of Grebbestad.
Human factors:
The oyster fishermens knowledge of the European flat oysters biology and life cycle and of the water and seabed conditions in the production area, together with the management of the oyster population on the natural oyster banks, is crucial for both the availability and the quality of Grebbestadostron.
Grebbestadostron are fished in a unique and gentle way that contributes to the characteristic quality of Grebbestadostron. The oysters may only be caught in nets by wading fishermen or hand-picked by experienced divers. Most oysters are hand-picked by divers. As the divers do not disturb any material on the seabed, the catching of Grebbestadostron has little impact on the oysters that are left on the oyster banks to filter the production areas clean, clear water.
Fishing is limited to 70 000 Grebbestadostron per year, with particular account being taken of the survival of the European flat oyster and thus of the continued availability of Grebbestadostron. In connection with the fishing of Grebbestadostron, the fishermen take various steps to maintain the oyster banks in the production area.
The oysters, which grow on top of each other in larger clusters, are separated and spread over a larger area so that all the oysters have good access to nutrients and thus an increased chance of survival. The small oysters growing on the surface of the Grebbestadostron that are caught are scraped off by hand, tended and put back out on the oyster banks. Before being put back out on the oyster banks, small oysters of the invasive Pacific oyster species Magallana gigas are first removed so as not to contribute to its spread.
In order to ensure the reproduction of O. edulis, Grebbestadostron are not caught during the reproduction period of the European flat oyster in JulyAugust.
Thanks to the measures and care taken by oyster fishermen when fishing for Grebbestadostron, the population of the European flat oyster is steadily increasing in the production area.
Reference to publication of the specification https www.livsmedelsverket.se/globalassets/foretag-regler-kontroll/livsmedelsinformation-markning-halsopastaenden/
skyddade-beteckningar/produktbeskrivning_grebbestadostron_2022_03_31.pdf
