Mammal Research

A harbor seal resting on exposed rock ledge.

Ashley L. Conti, Friends of Acadia,, NPS

Richardson (1971, 1972, 1973, 1977) conducted aerial inventories of harbor and gray seals in the Acadia National Park region of the coast.

• Richardson, D.T. 1971. Semi-annual progress report: Distribution and abundance of harbor and gray seals: Acadia National Park area. https://irma.nps.gov/DataStore/Reference/Profile/2180111
• Richardson, D.T. 1972. Semiannual progress report: Distribution and abundance of harbor and gray seals: Acadia National Park area: Period covered January 1 to June 30, 1972. https://irma.nps.gov/DataStore/Reference/Profile/2180226
• Richardson, D.T. 1972. Semiannual progress report: Distribution and abundance of harbor and gray seals: Acadia National Park area: Period covered July 1 to December 31, 1971. https://irma.nps.gov/DataStore/Reference/Profile/2180237
• Richardson, D.T. 1973. Semiannual progress report: Distribution and abundance of harbor and gray seals: Acadia National Park area: Period covered July 1 to December 30, 1972. https://irma.nps.gov/DataStore/Reference/Profile/2180112
• Richardson, D.T. 1973. Final report: Distribution and abundance of harbor and gray seals: Acadia National Park: Period covered - July 1, 1971 to July 1, 1973. https://irma.nps.gov/DataStore/Reference/Profile/2180110
• Richardson, D.T. 1977. Six year assessment of abundance and distribution of harbor seals and gray seals in the Acadia National Park area: Period covered: June, 1971 - July, 1977. https://irma.nps.gov/DataStore/Reference/Profile/2180113