Abstract: Research on the Laysan Island population of the endangered Hawaiian monk seal, Monachus schauinslandi, was conducted from 2 march to 30 November 1985. census totals excluding pups ranged from 76 to 147, an average increase of nearly 20 animals from the 1984 census results. Overall monthly haul-out distribution for all seals showed highest use in the north ecological unit followed by the west unit. Relatively few animals hauled out in the eastern and southern portions of the island. Interatoll movement of nine seals was documented, resulting in a net increase of three animals to the Laysan Island population.

This is a report on the observational studies of the Hawaiian monk seal and green turtle on Lisianski Island in the Northwestern Hawaiian Islands. These studies were taken during the 1-4 of June and 5-29 or August 1987 and focused on haul out, reproduction, and factors affecting survival.