.. [-I PRELTIclIN.A..RY PBELThaNARY REPORT OF OYS'rER OYSTER IlnTESTIGATIONS INVESTIGATIONS by .icNfllafl J1. li. C. C. McMillan 1931 Introduction The inland waters The area area of inland waters suitable suitable for for oyster oyster culture culture on on the coast of oregon in extent, extent. the coast Oregon is limited in There are barren tide flats amounting to to a few thousand thousand acres acres which which may may be be ututilized either for oyster or clam clam production; and and there there are are more more shallow water water where where oysters oysters may may be be cultivated. cultivated. limited areas of shallow At the the present time time the only natural natural beds beds of commercial commercial value value for for oysters are are in in the the estuary estuary of of the the Yaquina Yaquina River. River. oysters the sthnmer summer of During the of 1931 1931 aa preliminary preliminary examination examination of other bays has been made, made, and aa more more extensive extensive investigation has been been started started on on Yaquina Yauina Bay. has Bay. 'I'ide of Tillamook, l'illamook, Tide lands of Netarts, and Aloon Bays, Bays, have been planted to seed Oyster oyster imimNetarts, lanted to ported from from Japan. '1'he during the the The growth of these oysters during sunimer has cases. siiiimer hasbeen beensatisfactory satisfactory in in all all cases. Further develop- the oyster oyster to to survive survive the the ment will depend upon upon the the ability ability of ofthe winter conditions in each of these these hays. bays. Netarte Bay receives drainage from the the surrounding upland, very little drainage utland, and and the the salinity during the rainy seasons probably will not not adversely adversely afaf- fect the the oysters. Tillroaook Bay Bay forms forms the the outlat outlat for for several several Tillamook bay is probably large enough enough to to maintain maintain small rivers, rivers, but the bay aa sufficiently SUfficiently high high salinity. salinity. Alsea Bay is small in area and -2- receives amoun"G of fresh water water from the the surrounding surroli.11ding receives aa large amount territory; therefore, therefore, its its value value for for oyster oyster culture culture is is yet yet to to be be determined. Taquina !:lay Yaquina Bay A the oyster bearing bottoms in Yaquina Bay A survey of the was made in in 1908 1908 by by ri. Iii. Wygant, Wygant, U. U. S. S. Deputy Surveyor. He lie found found 101.95 101,95 acres acres of "natural" "natural" oyster beds, beds, and and 57.80 57.80 acres acres beds. of "private" beds, I'he The former foiner represented only those areas which were tonged by by the the public, pUblic. The latter were were portions bottom upon upon which which the the local local operators operators of nsturally naturally barren bottom the seed seed which they they took took up up from from the the natural natural planted half of the oystering. beds when oystering, Of the the legislature legislature the the natural natural By act or beds were were set set aside as a state state reserve, reserve, and and the the private areas the hands of of the the individual individual tongers. tongers. continued in the years after the passage of the the reverse reverse act act (( :Wor some For some ) the beds beds the were administered administered loosely loosely by by the the State state Fish Fish Coimnission Gonrrnission through the local lccal oyster oyster growert grower'ss association. association. 'there There were few legal restrictions upon those those who worked the the public beds, beds, and and controcontroversies developed among muong the the oystenaen. oystenaen. A A few few tongers tongers failed to to eserve, and others of the the seed seed to to the the State state Reserve, return half of showed ways. showed their privileges in various ways, A A definite definite oyster oyster policy for the the afuuinistration the Yaquina Yaquina !:lay administration the the the Bay beds is now in in the making. making. the The State state has closed closed the the beds beds to to general general exploitaexploita- tion, grounds to to the the Oregon Oregon Oyster Oyster Co., Co., which has tion, and leased the grounds -3- obtained the the rights rights on on the the private private beds, beds. also obtained In the evolution policy of administration a conflict conflict of of opinion opinion has has arise. arise. of a policy fWO principal points of contention are; are; one, one, the the right of tongers tongers Two to work the public beds, and two, two, the the title title to to private private areas. areas. to '.['he residents of the the vicinity maintain The residents maintain that that they they should should be be entitled entitled to employment by the the industry, industry. to emplocnent by 'fhe private th the exception exception of of The private bads bads wi withthe nine acres acres held heldbybyDr. Dr.101. M. Id. M. Davills Dafls under under aa fee fee simple title are unpatentable lands, lands, which which were were granted granted by by the the oyster oyster grower's grower's to its members upon certain conditions conditions involving constant association to constant cultivation. This controversey is outside the sdope scope of of a biological survey, therefore, therefore, the survey, the present report report will deal deal only only with with aa suggested suggested method of of oyster oyster culture culture on on the the Reserve. Reserve. 'there are the 'there are no no figures figures to to show show the the normal normal production production of of the Yaquina Bay Bay beds beds prior prior to to the the year year 1923. 1923. Yaquina The tongers tongers paid neither aa license fee nOr their catch, nor a tax on their catch, so the the ~tate State neither neither derived income from the beds nor kept records records of of production. production. Since 1923 1923 the the Oregon Oyster Company has oystered oystered the the beds, beds, and and their their figures figures do do not not indicate a high high yield. yield. the present time time the the beds beds are heavily At the stocked with the production for the the coming coming with marketable marketable oysters, oysters, and the year may than can can be be maintained maintained on on aa constant constant basis. basis. nay be greater than area included, included in Reserve as. as shown 1, The area in the State Reserve shown in Figure 1, constitutes about 400 400 acres. acres. four divisions, divisions. naturally into into The producing beds fall naturally The area between between the the Western western boundary boundary of of the the Reserve Reserve The and Boone Island is is locally called called the the Big Big Bend Bend beds. beds. Between Boone Between Boone Island and Oysterville Oysterville the the beds beds are are called called the the Oysterville Oysterville flats. flats. -4-.4-.. The Middle Grounds extend from from Oysterville Oysterville to to Rocky Point, and and the the Middle Grouhds remaining bottom to the bottom eastward to the boundary boundary of of the the Reserve Reserve is is 10l0wn imown as the the Shipyard Channel Channel beds. beds. The The Big Bend Bend beds beds are are washed washed by by aa good good current current on on both both the the flood and ebb tides, tides. set is is general, general, but but light. light. The set At the the present present At time the bottom time this this area area carries carries aalarge largenumber numberofofadult adultoyster~, oyste, and the bottom is clam shells. shells. is covered with a heavy layer of clam It It was was consistently worked for for many years by the the tongers, tongers, and produced a large proportion of the the output output of of the the bay, bay. should be oystered oystered irnediately. immediately. This bed should The seed oysters should be to the be returned to the beds, beds, but but aa portion portion of of the the cl81!l clam shells that would necessarily he taken taken up up with with the the oysters, oysters, and and not not needed as cultch, cultch, should be be separated and reserved for for planting other grounds next next summer. summer. one time time included included some the best The Oysterville flats at one some of the best seed seed catching ground in the the bay. bay. Ten~orary docks were were built built along along the the north north Temporarydocks shore, extending from the the Southern Pacific Railroad tracks tracks to to deep deep water, vreter. shore, A log log dump dump and booming goound was also also maint-ined maint;ined few fo~ aa long long time time at at A yound was the same place, place. the A dmnped around these structures A large amount of rocks was dumped and upon the oysters. The The currents were obstructed, obstructed, and nearby nearfuy ground, ground, affected by and the the oysters oysters not affected, by construction, construction, was was covered with sediment and destroyed. ~~though Although the docks have been abandoned for for many years a few the and the the rocks rocks remain. remain. piling and Sfuat 'ihatmight might ba ba aa productive productive oyster oyster bed continues as as aa useless useless area. area. dontinues portions of the the Oysterville On the free portions Flats are are many many large large oysters. oysters. This division should be oystered during during the the coming season season and the oysters oysters removed, removed. -5-5.. The Middle gound gound is is aa large large bed, bed, but but has has comparatively few oysters. The set is generally light, light, but due due to to the the fact fact that that the the ground has not been worked, there there are are scattered scattered beds beds of of old old oysters oysters that have reached their maximum age and and should should be be marketed. Seed from other parts of the the bay could well be be planted planted here. here. The Shipyard Channel is is the the best belet oyster oyster producing producing area area in in the 'Ghe bay, bay. A A set of seed is obtained each year, end and there there is is said said to to be be occasionally a remarkable catch. catch. oysters of of all all sizes, sizes. stocked with with The bed is now well stocked A oysters could A large nuraber number of marketable marketable oysters be sold and the the seed seed removed to to some some of of the the other other areas. areas. In all of the and especially the divisions, divisions, and. especially in in the the Shipyard Shipyard Channel Channel there there are are rock reefs, reefs, sunken logs, logs, large large loose loose boulders, boulders, and and other other obstructions obstructions which make make oystering difficult, but also prevent prevent the the depletion depletion of of the the beds, unless they they are are worked worked too too heavily heavily for for aa period period of of years. years. The The producti vi ty of this area can be increased by the the planting of clean productivity shells before the the spawning spawning season. season. Recommendations A general general policy policy of of oystering oystering the the entire entire Reserve Reserve isisreconnuended recommended A for coming season. for the coming There are are at least 2,000 oysters There 2,000 sacks of oysters wijich wbich have have reached reached their their maximum maximum size, size, aa large large percentage of which which probably will die die before before another another spawning spawning season. season. It is is suggested It that the the Big Rena Bend be be worked immediately, immediately, and and all all of of the the seed seed be be that returned. returned. The excess excess of of shell shell not not needed needed here here should should be be held held for for '['he planting on on other other beds, beds. planting Due to to the the large large amount amount of of clsxn clam shells on this culling necessarily will be slow; slow; therefore, therefore, it is sugpested suggested that bed, culling during the season atmight be be the busy season at 'l'hanksgiving Thanksgiving and and Christmas Christmas oysters oysters might -6- taken from the Middle ground and Shipyard Shipyard Channel Channel beds. beds. summary Summary 1. The Yaquina Bay contains the only connercially comrnercially valuable valuable oyster oyster in the the State state of of Oregon. Oregon. beds in 2. 2, 'l'here are no no adequate statistics statistics to to show show the the proftuctivity productivity of There are years. the beds in past years. 3. The beds bads are are now heavily heavily stocked stocked with with full full grown grovm oysters. oysters. 4. 4, At least 2,000 sacks sacks of oysters should be removed removed during the the coming season, season, as as aa large large percentage percentage have have reached reached their their maximum maximum age spawning season. season. age and and may may die before another spawning 5. 5, Seed ·the Shipyard Channel to to other viSeed should be moved moved from the other di divi- sions sions of of' the theReserve, Reserve, and and this this area area should should he be heavily heavily shelled he fore another spawning spavming season. season. before 6. 5. The excess of shells shells not not needed on on the the other beds beds should be be separated CUlling and used in in cuitching cul tehi.ng the the Shipyard Shipyarcl Channel. Channel. separated in culling