. The Biological bulletin. Biology; Zoology; Marine biology. OSMOTIC RESPONSES OF A POLYCHAETE 121 stitial water) in the holes from which worms were dug, and of bottom water in the middle of Schooner Creek at low tide, water to which the worms are not directly exposed at the time of sampling. Interstitial water at low tide is always of a higher salinity than creek water. According to Burt and McAlister (1959), Siletz Bay is typical of Oregon estuaries in showing relatively little mixing between entering fresh water from the Siletz River (the major source of fresh water in this estuarine system
. The Biological bulletin. Biology; Zoology; Marine biology. OSMOTIC RESPONSES OF A POLYCHAETE 121 stitial water) in the holes from which worms were dug, and of bottom water in the middle of Schooner Creek at low tide, water to which the worms are not directly exposed at the time of sampling. Interstitial water at low tide is always of a higher salinity than creek water. According to Burt and McAlister (1959), Siletz Bay is typical of Oregon estuaries in showing relatively little mixing between entering fresh water from the Siletz River (the major source of fresh water in this estuarine system), and sea water from the Pacific Ocean entering through the narrow mouth of the bay. This means that the salinity of bottom water of the estuary is considerably higher than that of surface water, which may be nearly fresh. The range of salinities found in the bay varies during the year, due to the great variation in flow of the Siletz River, which dominates the estuary system. Schooner Creek has a fairly low and constant flow throughout the year, varying less in volume than most other. Figure 2. Chloride concentration of habitat of Nereis limnicola at Schooner Creek, Oregon, in 1965-67. Solid circles indicate values for seep water into holes dug for worms; open circles, values for bottom water in the middle of Schooner Creek at low tide, adjacent to worm Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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