Caddy, John F. Enhancing or restoring the productivity of natural populations of sh ellfish and other marine invertebrate resources/ J.F. Caddy and D. D efeo - Rome : FAO Publishing , 2003. - vi, 159p. : ill. ; 30 cm. - FAO Fisheries Technical Paper ; no.448. . Includes bibliographical references (p.124-154) ISBN: 9251050171 Subjects--Topical Terms: Shellfish.--------Aquatic invertebrates.--------