The search for earlier evidence of maritime adaptations in the Russian Far East has been the subject of geoarchaeological investigations. The dog salmon bones from layer 6 of the Ushki site cluster (Kamchatka Peninsula), dated to ca. 10,900-10,400 BP, is the earliest direct evidence of the exploitation of marine resources in the Russian Far East. During the Neolithic, the use of marine resources increased significantly. In the Chertovy Vorota complex (ca. 6900-7000 BP) of central Primorye Province, salmonid bones were identified; stable isotope data also suggest consumption of anadromous fish. The Boisman 2 site in southern Primorye represents the earliest evidences of shellfish gathering and pinniped hunting, and is dated to ca. 5800 BP. The exploitation of marine resources continued into the Late Neolithic of the Primorye and Sakhalin Island (Zaisanovka and Aniva complexes). Nevertheless, some problems in study of the origin of maritime adaptation in the Russian Far East still exist. For example, the utilization of anadromous species during the late Upper Paleolithic (Ustinovka complex, ca. 15,000-10,000 BP) and Early Neolithic (Ustinovka 3 site, ca. 9000 BP) in the Zerkalnaya River basin in central Primorye has been proposed. The Zerkalnaya River sites are located 25-30 km from the seacoast, and support for the seasonal use of salmon has been based on stone tool typology and site location. However, no fish remains were recovered during the 50 years of excavations. Therefore, the proposition that there was a cultural pattern emphasizing the use of marine resources during the Final Pleistocene of the Russian Far East has been solely derived from indirect evidence. Until there is better evidence, the question of whether marine resources were utilized during the Final Pleistocene of the Russian Far East must remain as yet unresolved.