This article aims to examine the Human/Nature relationships in coastal and island contexts, based on ethnographic field surveys conducted over the past four years on the islands of Kihnu, Manilaid and Ruhnu (Estonian part of the Gulf of Riga). It seeks to decipher the particular social-ecological system that has settled on these three islands, whose communities live with the sea on a daily basis. It will address both the food uses of the marine environment, their translation into the

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... n of communities (inclusion in the landscape, establishment of specific marine cosmogonies), but also the symbolism and representations related to the sea (intangible heritage).