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A green algal symbiont in Clinocardium nuttallii

Creator:: Hartman, Michael Colyn
Abstract:: Clinocardium nuttallii from Yaquina Bay, Oregon, were found to harbor an algal symbiont in the siphon, mantle and occasionally the foot tissues. Approximately 35 percent of the population in the study area was infected to some degree with the alga; however, no cockles under two years of age were infected....
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy (Name) (Degree) in Zoology presented on /7 (Major) 7 t (Date) Title: A GREEN ALGAL

Host-parasite relationships of the staghorn sculpin Leptocottus armatus Girard in Oregon

Creator:: Burreson, Eugene Michael
Abstract:: The staghorn sculpin Leptocottus armatus is abundant in the Yaquina Bay estuary on the central Oregon coast and also occurs offshore in shallow water. A total of 560 L. armatus were collected at three locations in Yaquina Bay and between 7 and 11 kilometers offshore in depths of 40 to...
Resource Type:: Masters Thesis
Full Text:: M.S. (Name of student) in ZOOLOGY (Major) (Degree) presented on /7L (Date) Title: HOST-PARASITE

The ecology of Lepidurus apus in northern Utah and some limnological requirements for hatching

Creator:: Braswell, Audrey Lee Jr
Abstract:: A survey of the major bodies of water, temporary and perennial, in the region of Northern Utah revealed a limited distribution of the Notostraca. Lepidurus (Linn.), the only representative found, was restricted to a single temporary shallow lake. Dry Lake, in the southern end of Cache County. Dry Lake occupies...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Redacted for Privacy APPROVED: .. Professor of Zoology In Charge of Major

The swimming response of the Sacconereis stage of Autolytus varius to changes in hydrostatic pressure

Creator:: Smith, Randall William
Abstract:: The syllid polychaete Autolytus varius reproduces in the spring and early summer in Yaquina Bay, Oregon, The fertilized female epitokes, or Sacconereis, carry the developing eggs and larvae in a ventral sac until the larvae are ready to be released; incubation lasts 14 to 18 days in the laboratory, The...
Resource Type:: Masters Thesis
Full Text:: Zoology in charge of major Redacted for Privacy Head of Departmedt of Zoology Redacted for Privacy

The morphology of Ismaila monstrosa Bergh (Copepoda)

Creator:: Belcik, Francis Peter
Abstract:: The morphology of a rather rare parasitic copepod was studied. Ismaila monstrosa Bergh, an endoparasitic copepod was found in the nudibranch, Antiopella fusca, at Coos Bay, Oregon. Many anatomical features were found, which were different from previous descriptions. Males were described for the first time. Young males lacked the gonadal...
Resource Type:: Masters Thesis
Full Text:: ) M. S. (Degree) in Zoology (Major) Date thesis is presented l'/ Ak I Title THE MORPHOLOGY OF

The life cycle of the trematode Telolecithus pugetensis Lloyd & Guberlet, 1932

Creator:: DeMartini, John David
Abstract:: The fish Cymatogaster aggregata, Embiotoca lateralis and Phanerodon furcatus served as definitive hosts for the trematode Telolecithus pugetensis Lloyd and Guberlet. Eggs that were collected from the terminal part of the uterus of mature worms were found to have undergone several cleavages, but complete development was observed only in some...
Resource Type:: Dissertation
Full Text:: . in Zoology (Name) (Degree) (Major) Date thesis is presented Auust 30, 1963 Title THE LIFE CYCLE OF

The symbiotic relationships and morphology of Paravortex sp. nov. (Turbellaria, Rhabdocoelida) a parasite of Macoma nasuta Conrad, 1837

Creator:: Hanson, Alfred Warren
Abstract:: Rhabdocoels of the genus Paravortex are parasites of marine molluscs. The bent-nosed clams, Macoma nasuta(Conrad, 1837) of Yaquina Bay, Lincoln County, Oregon are commonly infected with a new species of Paravortex. The morphology of the adult worm has been described and it has been compared to the other three species...
Resource Type:: Masters Thesis
Full Text:: Privacy in Zoology (Major) Rhabdocoels of the genus Paravortex are parasites of marine molluscs. The

The morphology and ecology of Echinorhynchus lageniformis Ekbaum, 1938 (Acanthocephala)

Creator:: Barnes, James R.
Abstract:: The acanthocephalan Echinorhynchus lageniformis Ekbaum, 1938, is a common intestinal parasite of the starry flounder, Platichthys stellatus (Pallas), of Yaquina Bay, Lincoln Co., Oregon. Three hundred and sixty-one flounders were examined and 146 (40.5 percent) were found to harbor infections of E. lageniformis. Cystacanths of E. lageniformis were found encysted...
Resource Type:: Masters Thesis
Full Text:: thesis is presented for the MS. in (Degree) JUN 2 £ 1$G Zoology (Major) Title THE MORPHOLOGY AND

Life history of the caligid copepod Lepeophtheirus hospitalis Fraser, 1920 (Crustacea:Caligoida)

Creator:: Voth, David Richard
Abstract:: Specimens of the starry flounder, Platichthys stellatus (Pallas, 1811) Girard, 1854, were collected in Yaquina Bay near Newport, Oregon, from July, 1970, to August, 1971. Fish infected with Lepeophtheirus hospitalis Fraser, 1920, were transported to Corvallis, Oregon, and maintained in a sea water system at 15°C. Isolated copepods were studied...
Resource Type:: Dissertation
Full Text:: of Philosophy (Name) (Degree) in Zoology presented on August 17, 1971 (Major) (Date) Title: Life

Life cycle and host specificity of Diclidophora sp. (Monogenea-Diclidophoridae), a parasite of embiotocid fishes

Creator:: Hanson, Alfred Warren
Abstract:: The life cycle of a monogenean, Diclidophora sp., was studied with special attention to the time required for developmental stages to occur. Eggs are produced by adult worms at the rate of one every 13.5 minutes and require 32 days to hatch when incubated at 12.5°C and 30.9‰ salinity. Rate...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy (Name) (Degree) in Zoology presented on /8 1q72 (Major) /71 date Title: LIFE CYCLE

ScholarsArchive@OSU

A green algal symbiont in Clinocardium nuttallii

Host-parasite relationships of the staghorn sculpin Leptocottus armatus Girard in Oregon

The ecology of Lepidurus apus in northern Utah and some limnological requirements for hatching

The swimming response of the Sacconereis stage of Autolytus varius to changes in hydrostatic pressure

The morphology of Ismaila monstrosa Bergh (Copepoda)

The life cycle of the trematode Telolecithus pugetensis Lloyd & Guberlet, 1932

The symbiotic relationships and morphology of Paravortex sp. nov. (Turbellaria, Rhabdocoelida) a parasite of Macoma nasuta Conrad, 1837

The morphology and ecology of Echinorhynchus lageniformis Ekbaum, 1938 (Acanthocephala)

Life history of the caligid copepod Lepeophtheirus hospitalis Fraser, 1920 (Crustacea:Caligoida)

Life cycle and host specificity of Diclidophora sp. (Monogenea-Diclidophoridae), a parasite of embiotocid fishes

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