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Several factors bear evidence of chemosynthetic ecosystem occurrence in the Brazilian coast; these motivated our investigation to sample three pockmarks located on the continental slope off SE Brazil (26°S and 46°W) at ∼700 m depth. The crater-like features were ∼1 km in diameter and 100 m in depth, and were identified with an echo-sounder (EK-500). They were sampled along two transects using a rectangular...
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