The interest in collecting hydrographical data on Salmon River began as part of a generalized search for suitable hatchery sites on coastal streams in 1967. Because of the realization that the Salmon River did have significant potential for a hatchery, additional data have been collected in the intervening years. A...
Fish Commission of Oregon personnel seined selected locations of Tillamook Bay, Oregon, from June to September 1972, to determine if juvenile salmon were rearing in the estuary and to get some concept of relative numbers of fish in the various parts of the bay. These data then could be compared...
The State Police in Astoria informed the Fish Commission on October 12, 1970, that some 100 crab pots were in the ocean in 3-10 fathoms of water near Cannon Beach. This is about 23 miles south of the Columbia River within the 3-mile limit. According to one local crab fisherman,...
Dungeness crab migration along the coast and movement in and out of bays and estuaries has been studied by Cleaver (1949) in Washington, Waldron (1958), and Snow and Wagner (1965) in Oregon. Tagged crabs were recovered up to 133 miles from the point of release and a free interchange between...
Spawning coho, chinook, and chum salmon are annually surveyed in coastal streams by Department of Fish and Wildlife personnel. Annual peak counts of spawning salmon provide data for computing an index of coastal escapement which is plotted each year to chart spawning salmon trends over a period of years. This...
The surveys of spawning fish in coastal rivers in 1971 indicate that stocks of chum salmon remain at a low, although apparently stabilized level. Fluctuations are probably the result of year-class survival and age at maturity, rather than continued decline of the species.
The fall chinook index of abundance was...
The fall chinook index of abundance was 128% of the long-term average, and presumably would have been even higher had survey conditions in the central and north coast not been so difficult.