Acting on a tip-off, a team of Marine Police recovered the sea cucumber hidden in a sack buried off Thiruvadanai coast in this district, and confiscated it this morning, they said.
One Mohammed Wasim of Devipattinam has been arrested in this connection, they added.
Sea cucumbers, which play an important role in maintaining the marine ecological system, have been classified as endangered species and their harvest banned under the Wildlife Protection Act.