La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Oyster reefs in 1878 seascape pattern - Winslow revisited
Auteurs :	M. G. McCormick-Ray, Auteur
Type de document :	Article
Dans :	Estuaries (21(4B) DEC 1998)
Article en page(s) :	784-800
Résumé :	An analysis of Winslow's 1878 oyster survey data of Tangier Sound relates the Euclidean dimensions of oyster beds to plan-channel morphology, water depths, bottom slopes, and relief. Results show that at a regional scale the Tangier oyster beds followed a benthic seascape density pattern related to the main axial Tangier Sound Channel: its morphology, meanders, and east-west location. The north-south axis of the channel was intersected by estuarine flows into its central-eastern section, where meanders began with a tight meander around a western shoal, followed by wider second and third meanders. The location of the deepest axial depths of the channel's bottom indicates a lateral, side-to-side switching between opposite beds, and a vertical undulation in a deepening trend to 31 m at the apex: of the first meander. The depth then generally shallowed as the channel plan-form meandered southward to the sound's entrance. Oyster beds flanked the upper sides of the channel, their generally long and narrow linear axes oriented with that of the main channel in width-to-length ratios of

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