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Filtering by: Alt title Beach erosion on Siletz Spit, Oregon Remove constraint Alt title: Beach erosion on Siletz Spit, Oregon Creator Oregon. Fish Commission Remove constraint Creator: Oregon. Fish Commission

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  • The bay clams of Oregon : their economic importance, relative abundance, and general distribution

    Creator:
    Marriage, Lowell D. and Oregon. Fish Commission
    Abstract:
    An average of approximately 200,000 pounds of bay clams were harvested annually in Oregon for the years 1943-49, inclusive. The commercial harvest of bay clams is composed of the gaper, cockle, and softshell clams. The recreational, or noncommercial, harvest of bay clams is composed mainly of the gaper, cockle, softshell,...
    Resource Type:
    Technical Report
    Full Text:
    beach. For example, the common bay habitat of the cockle, Cardium corbis Martyn, is on sand-mud flats

  • Growth and mortality rates of the razor clam (Siliqua patula) on Clatsop beaches, Oregon

    Creator:
    Hirschhorn, George and Oregon. Fish Commission
    Abstract:
    Clatsop Beaches, characterized by flat beach-face slope (1:70) and small sandsize (0.2 mm.), have supported commercial and recreational fisheries for the razor clam (Siliqua patula) for many years. Tracing the linear growth of two year classes through more than one year following set led to a validation of the ring...
    Resource Type:
    Technical Report
    Full Text:
    ) on Clatsop Beaches, Oregon George Hirschhorn FISH COMMISSION OF OREGON Portland, Oregon

  • Observations on horseclams of the 1949-50 set in Yaquina Bay

    Creator:
    Tollefson, Roger, Marriage, Lowell D., Twahy, Donald, Wilkes, Stanley, Woelke, Charles, and Oregon. Fish Commission
    Abstract:
    This report contains a series of individual reports within it. The main report continues growth and aging studies on fat gaper clams in Yaquina Bay. This document also includes a report on other Fish Commission activities on the Coast, a summary of razor clam research, the beginning of a survey...
    Resource Type:
    Technical Report
    Full Text:
    shell (slower growth rate on the older clams), and the fact that the shell becomes smooth (erosion

  • Research briefs. Vol. 8, no. 1

    Creator:
    Oregon. Fish Commission
    Abstract:
    These short reports are intended to inform the public, fishing industry, sportsmen, and fisheries scientists of research conducted by the Fish Commission. Reports will be published from time to time as studies are sufficiently complete. Most of the reports provide biological evidence upon which measures are based to enhance and...
    Resource Type:
    Technical Report
    Full Text:
    probably caused by greater accessibility of the ocean beach on the north side of the entrance to Siletz

  • Analysis of factors affecting the production of chum salmon (Oncorhynchus keta) in Tillamook Bay

    Creator:
    Henry, Kenneth A. and Oregon. Fish Commission
    Abstract:
    Tillamook Bay chum salmon are caught commercially by gill-nets, both set and drift, and from 1928 through 1949 the landings have averaged 819,689 pounds per season. More chum salmon are caught on Tillamook Bay than on the rest of the Oregon coastal rivers combined. These fish enter the ocean only...
    Resource Type:
    Technical Report
    Full Text:
    Wilson River, a tributary of Tillamook Bay 13 Table 5. Chum salmon fingerling caught by beach-seining on

  • Fish Commission research briefs. Vol. 2, no. 1

    Creator:
    Oregon. Fish Commission
    Abstract:
    These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable bio­logical evidence for conclusions upon which...
    Resource Type:
    Technical Report
    Full Text:
    Commissioners began its work earnestly enough in 1887, when i t leased a site on the Clackamas from the Oregon

  • Shellfish investigations : April 1962 - March 1964

    Creator:
    Snow, C. Dale, Stewart, Nelson E., Demory, Darrell, DeBen, Waldemar, and Oregon. Fish Commission
    Abstract:
    This progress report covers the two-year period of April 1962-March 1964 in an attempt to make the reports current. In it, you can find analysis of softshell clam populations in multiple bays, including Siuslaw, Nehalem, and Tillamook. This report includes counts for personal-use clam diggers, as well as clam digging...
    Resource Type:
    Technical Report
    Full Text:
    Oregon State Police in eollec ing and disposi ng of a fur seal pup bo on the beach at Sea Roe So Co

  • Offshore crab shedding - 1948

    Creator:
    Tollefson, Roger, Marriage, Lowell D., and Oregon. Fish Commission
    Abstract:
    Much of this report is concerned with the perennial question of when crabs are in the soft-shell state, as opposed to when the commercial fishing season should be open. Other topics covered include molted crab shells, methods of measuring crab shells to determine if they meet size limits, early growth...
    Resource Type:
    Technical Report
    Full Text:
    ~! TarAt 1,138 pots Washington Wat.ers, Long Beach --- 30 pots Peacock Spit ---- 16; potl TOTAL 195

  • Fish Commission research briefs. Vol. 2, no. 2

    Creator:
    Oregon. Fish Commission
    Abstract:
    These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures. Reports will be published from time to time when studies are sufficiently complete to provide reliable biological evidence for conclusions upon which...
    Resource Type:
    Technical Report
    Full Text:
    survive to reach the Oregon coast. As a result the Oregon fishery is now dependent on that part of the

  • Research briefs. Vol. 11, no 1

    Creator:
    Oregon. Fish Commission
    Abstract:
    These short reports are intended to inform the public, fishing industry, sportsmen, and fisheries scientists of research conducted by the Fish Commission. Reports will be published from time to time as studies are sufficiently complete. Most of the reports provide biological evidence upon which meas­ures are based to enhance and...
    Resource Type:
    Technical Report
    Full Text:
    Whitefish . . . Jack G. Robinson 52 First Occurrence of Bigeye Tuna on the Oregon Coast . . . James M