This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: National Academies in 1982 in 78 pages; Original Identifier: NAP:16658; Subjects: Political Science / Public Policy / Economic Policy; Science / Earth Sciences / Oceanography; Technology & Engineering / Fisheries & Aquaculture; Technology & Engineering / Marine & Naval;