Four fishing trawls used by the intruders for fishing along the prohibited breeding zones of the endangered marine animals were seized by the patrolling unit engaged by forest department for conservation of olive ridley sea turtles near unmanned Ekakulanasi.
The arrested fishermen were natives of Jagatsinghpur and Kendrapara district, said officials.
The fishing vessels had trespassed into prohibited sanctuary corridors contravening the provisions of wildlife protection act, Orissa Marine fishing regulation act and mandatory rules of marine sanctuary.