San Matías Gulf

The San Matias Gulf is an inlet of the Atlantic Ocean off the coast of Patagonia, Argentina.

[2] The gulf was the subject of scientific investigation for its unusually large sand waves and their movement.

[3] The local fishing industry may be unsustainably harvesting the purple clam (Amiantis purpurata), the Tehuelche scallop (Aequipecten tehuelchus), the blue mussel (Mytilus edulis), and the ribbed mussel (Aulacomya atra), as well as the Patagonian octopus (Octopus tehuelchus).

Prior to the deglaciation that followed the last glacial period San Matías Gulf was a dry flatland below sea level.

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