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Size classes, population structure, growth, sex ratio, and size and age at maturity of Chionoecetes tanneri Rathbun (Brachyura:Majidae) off the Oregon coast

Creator:: Tester, Patricia A.
Abstract:: During eleven cruises conducted off the Oregon continental slope from April 1973 to March 1975, approximately 1600 specimens of the majid crab Chionoecetes tanneri Rathbun were collected. A time sequence of size frequency histograms and bivariate plots of allometric measurements were used to determine size classes, population structure, growth and...
Resource Type:: Masters Thesis
Full Text:: : MAJIDAE) OFF THE OREGON COAST Dr.\Andrew Carey, Jr. During eleven cruises conducted off the Oregon

Dynamics of crab larvae (Anomura, Brachyura) off the central Oregon coast, 1969-1971

Creator:: Lough, Robert Gregory, 1943-
Abstract:: Bimonthly plankton samples were collected from 1969 through 1971 along a transect off the central Oregon continental shelf (44° 39. l'N) to document the species of crab larvae present, their seasonality, and their onshore-offshore distribution in relation to seasonal changes in oceanographic conditions. A comprehensive key with plates is given...
Resource Type:: Dissertation

The role of stridulation in the behavior of the shore crab Hemigrapsus oregonensis

Creator:: Guin, Marilyn P.
Abstract:: The claw shuddering display of the shore crab Hemigrapsus oregonensis was explored with acoustic and behavioral observations. Male H. oreqonensis stridulate during claw shuddering display. The stridulatory apparatus is present only on the males. The acoustic signal was of brief duration, showed a general pattern of sound bursts, but varied...
Resource Type:: Masters Thesis

Crab population up

Creator:: Snow, C. Dale and Oregon. Department of Fish and Wildlife
Abstract:: Reports on a cyclic increase in the abundance of Dungeness crab off Oregon.
Resource Type:: Technical Report
Full Text:: the Oregon coast and particularly so along the south coast. Oregon crab fishernien, through the first

Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : completion report, November 16, 1965 to June 30, 1971

Creator:: Gaumer, Thomas F. and Oregon. Fish Commission
Abstract:: It is possible that the large fluctuations In annual Dungeness crab landings are caused by displacement of crab larvae by currents. We studied the effects of various environmental factors on crab larvae survival and behavior. Tests were conducted on cultured zoeae and megalopae and on wild megalopae. Our studies showed...
Resource Type:: Technical Report
Full Text:: crab (Canoer magister) in Oregon since 1948 have ranged from 3.5 to 15.0 mIllion pounds and averaged

Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival, 1969/1970

Creator:: Gaumer, Thomas F. and Oregon. Fish Commission
Abstract:: "This report covers studies conducted on Dungeness crab larvae from July 1, 1969, through June 19, 1970. Principal objectives were to determine the following: (1) the effects of crab larval concentration on growth and survival; (2) the effects of light intensity on the swimming behavior of crab larvae; (3) the...
Resource Type:: Technical Report
Full Text:: CONTROLLED REARING OF DUNGENESS CRAB LARVAE AND ThE INFLUENCE OF

Population structure of the intertidal shore crab Hemigrapsus oregonensis (Brachyura, Grapsidae) in Yaquina Bay, a central Oregon coast estuary

Creator:: Batie, Robert Edward
Abstract:: The Hemigrapsus oregonensis population at Coquille Point in the Yaquina Bay Estuary on the Central Oregon Coast was studied from April, 1972 through May, 1973. The population was found to be vertically stratified from the 1 ft level to the 5 ft level. Population densities were found to be most...
Resource Type:: Dissertation
Full Text:: : POPULATION STRUCTURE OF THE INTERTIDAL SHORE Abstra CRAB HEMIGRAPSUS OREGONENSIS (BRACHYURA, GRAPSIDAE) IN

Yaquina Bay South Jetty softshell crab problem

Creator:: Snow, C. Dale and Oregon. Fish Commission. Shellfish Investigations
Abstract:: In 1974, large numbers of Dungeness crabs migrated into tide pools near the South Jetty of Yaquina Bay and went through their annual molt. The public discovered the abundance of crabs, and found that they were easy prey during low tides. The situation prompted an emergency closure of the area...
Resource Type:: Technical Report
Full Text:: . Xruse SUBJECT: Closure of Beach Hear Newport to Taking of Dungeness Crab In the last two weeks a

Oregon tree quiz - key [1979]

Creator:: Ross, Charles R. (Charles Robert), 1908- and Oregon State University. Extension Service
Abstract:: Blank quiz sheets published as EC 566.
Resource Type:: Learning Object
Full Text:: Oregon Tree Quiz—Key (Blank quiz sheets published as EC 566) Identify the drawings for the trees

Oregon tree quiz [1979]

Creator:: Ross, Charles R. (Charles Robert), 1908- and Oregon State University. Extension Service
Abstract:: Answers published separately as EC 567.
Resource Type:: Learning Object
Full Text:: \} Oregon Tree Quiz (Answers published separately as EC 567) Identify the drawings for the trees below

ScholarsArchive@OSU

Size classes, population structure, growth, sex ratio, and size and age at maturity of Chionoecetes tanneri Rathbun (Brachyura:Majidae) off the Oregon coast

Dynamics of crab larvae (Anomura, Brachyura) off the central Oregon coast, 1969-1971

The role of stridulation in the behavior of the shore crab Hemigrapsus oregonensis

Crab population up

Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival : completion report, November 16, 1965 to June 30, 1971

Controlled rearing of dungeness crab larvae and the influence of environmental conditions on their survival, 1969/1970

Population structure of the intertidal shore crab Hemigrapsus oregonensis (Brachyura, Grapsidae) in Yaquina Bay, a central Oregon coast estuary

Yaquina Bay South Jetty softshell crab problem

Oregon tree quiz - key [1979]

Oregon tree quiz [1979]

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