A bid of $122,689 for the construction of a welded aluminum lobstering and crab fishboat for Nicholas Rosa of Brooklyn, N.Y., has been reported as acceptable by the Maritime Administration. The bid, the lowest received, was made by Sewart Seacraft Division of Teledyne, Inc. of Berwick, La.

According to James Gulick, acting maritime administrator, $71,000 was estimated as the cost of constructing the ship in Japan, the representative low cost shipbuilding center. The government will make up the difference of $51,689. The ship will be subsidized through the Department of the Interior.