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Ecology of Seashores by George A. Knox. (Marine Science Series) Because of its accessibility, the intertidal zone offers excellent opportunities to study adaptations of individual organisms and populations to their environment and factors controlling community composition. Early work on seashores concentrated on life in an environment characterized by steep gradients in physical conditions, but more recent research has focused on understanding processes controlling productivity and dynamic functioning of fascinating shore ecosystems. Emphasis has been placed on processes such as primary production, grazing, predation, competition, impact of disturbance, secondary production, detritus formation, decomposition, and the role of microorganisms. My involvement in seashore research began with a M.Sc. thesis in zoology on the ecology of rocky shores at Taylors Mistake, Banks Peninsula, focusing on the serpulid polychaete Pomatoceros cariniferus (Knox, 1948; 1953). In the late 1950s, I became involved in research on a local estuary, the Avon-Heathcote Estuary. This evolved into a comprehensive interdisciplinary research program that continues to this day, involving many research associates, assistants, and students culminating in two major reports (Knox & Kilner, 1973; Knox, 1992). A multiauthor book on the results of 50 years of estuarine ecosystem research is in preparation (Knox & Robb, in prep.). From 1959 to 1983, I directed activities at the Estuarine Research Unit, Zoology Department, University of Canterbury. This unit conducted research throughout New Zealand and compiled some 28 major reports aimed at understanding interactions among estuarine plants, microorganisms, animals, and humans with their environment. Such research contributed to basic ecological principles while providing information for managing New Zealand coastal ecosystems (Knox, 1983c). I was scientific coordinator of a multidisciplinary study of the Ahuriri Estuary in Hawke Bay (Knox & Fenwick, 1978; Knox, 1979b) and coordinator of biological aspects of the Upper Waitemata Harbour Catchment Study, a comprehensive five-year interdisciplinary study of mangrove-fringed Upper Waitemata Harbour, Auckland (Knox, 1983a; 1983b). A fellowship at the East-West Center in Honolulu enabled me to undertake a study of coastal zone resource development and conservation in Southeast Asia with special reference to Indonesia (Knox & Miyabara, 1983). This culminated in the publication of a two-volume work on estuarine ecosystems (Knox, 1983a,b). Over the years, I have also been involved in research on intertidal ecology of rocky shores (Knox, 1963a; 1968; 1969b; 1988; in prep.; Knox & Duncan, in prep.) and sand beaches (Knox, 1969a). Field work has been conducted on New Zealand’s rocky shores, Subantarctic Islands (Snares, Auckland, Campbell, Chatham Islands), Antarctica, Chile’s west coast, Australia’s southern coasts. Shores in Peru, Argentina, Canada and U.S.’s eastern and western coasts, England and Scotland, and tropical shores in Guam, Palau Islands, Fiji, Hawaii have been briefly examined (Knox, in prep.). This work has also involved an examination of the evolution and biogeography of Southern Hemisphere intertidal and shallow water biotas (Knox, 1960; 1963a; 1975; 1988). This book uses a systems analysis approach to ecological processes. It aims to bring order to complex seashore ecosystems worldwide using H.T. Odum’s energy circuit language of symbols and diagrams (Odum, 1983). The book is divided into seven chapters: introduction, zonation patterns on hard shores, soft shore physicochemical environment, ecological niches, distribution factors, energy budgets and food webs, ecosystem models, and network analysis applications. 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