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The chronic toxicity of 2,3,7,8-tetra-chlorodibenzo-p-dioxin (TCDD) to five selected aquatic organisms

Creator:: Miller, Richard A.
Abstract:: Five species of aquatic organisms were exposed to TCDD. Lethal effects of initial exposure to coho salmon of 23.4 nanogram TCDD/gram fish wet weight (23.4 ng/g), or equivalent to 100 nanogram per liter (100 ng/l) TCDD in water, for 24 hours were irreversible; 95% mortality occurred in 60 days. Exposure...
Resource Type:: Masters Thesis
Full Text:: % mortality occurred in 60 days. Exposure to 5, 4 ng/g, 5.6 ng/l, resulted in 55% mortality. The no response

Factors affecting the abundance of fall chinook salmon in the Columbia River

Creator:: Van Hyning, Jack M.
Abstract:: A study of the population ecology of Columbia River fall chinook salmon, Oncorhynchus tshawytscha (Walbaum), was made in an attempt to determine the cause of a serious decline in this run which occurred in the early 1950's. Fluctuations in abundance of major salmon runs the North Pacific were examined to...
Resource Type:: Dissertation
Full Text:: return per spawner; (13) most of the early dams had no direct effect on fall chinook and the decline in

Systematics, variation, distribution, and biology of lampreys of the genus Lampetra in Oregon

Creator:: Kan, Ting Tien
Abstract:: Based on the number of velar tentacles and the form of longitudinal lingual laminae found in Lampetra (Entosphenus) t. tridentata and its closely related forms, the taxon Entosphenus should not be considered as a genus as commonly adopted, but, along with the taxa Lethenteron and Lampetra, should be regarded as...
Resource Type:: Dissertation
Full Text:: no cusps are present in the area distal to the lateral circumorals. Six nominal species, belonging

Limnology of Upper Klamath Lake, Oregon, with emphasis on benthos

Creator:: Hazel, Charles R.
Abstract:: Aspects of the limnology and benthic ecology of Upper Klamath Lake, Oregon, are described emphasizing those features that identify its uniqueness. The lake is large, shallow, and characterized by nuisance abundances of Aphanizomenon flos-aquae and midge flies. Results of this study indicate that it does not stratify and dissolved oxygen...
Resource Type:: Dissertation
Full Text:: study was supported by Federal Water Pollution Control Administration, Grant No. WP-00625. TABLE OF

The migratory pattern of audlt sockeye salmon (Oncorhynchus nerka) in Bristol Bay as related to the distribution of their home-river waters

Creator:: Straty, Richard R.
Abstract:: The individual stocks of sockeye salmon that make up the annual spawning migration to the Bristol Bay region of Western Alaska are produced in the lakes and streams of ten major river systems, which discharge into the bay over a shoreline distance of 120 miles. The hypothesis adopted in this...
Resource Type:: Dissertation
Full Text:: ). They also showed that seasonal changes in stream waters had no effect in altering a fish's response to

Behavior and survival of coho salmon, Oncorhynchus kisutch (Walbaum), in Sashin Creek, southeastern Alaska

Creator:: Crone, Richard Allan
Abstract:: Behavior and survival in fresh water were studied for three brood years of coho salmon in Sashin Creek, Alaska, from October 1963, until September 1966. Investigations of spawning adults were conducted to determine numbers of spawners, distribution on the spawning grounds, effects on pink salmon, age composition, redd life, fecundities,...
Resource Type:: Masters Thesis
Full Text:: , 1958), Spring Creek in Oregon (Oregon Fish Commission, Progress Report, as cited in Chapman, 1962

A review of the deep water Liparidae from the coast of Oregon and adjacent waters

Creator:: Stein, David L.
Abstract:: Descriptions and distributions are given of 28 species of Liparidae occurring or possibly occurring below 200 m between San Francisco and northern Vancouver Island, with keys for their identifications. Nine genera are included: Careproctus, Elassodiscus, Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis, and two new genera are described, Odontoliparis and Osteodiscus. Eight...
Resource Type:: Masters Thesis
Full Text:: - tion when examined. This work was supported by AEC Contract No. AT(45-1)2227, Task Agreement 12, RLO

The freshwater fishes of Iran

Creator:: Armantrout, Neil B.
Resource Type:: Dissertation
Full Text:: there were no systematic collections of Persian fishes. Collections that had been made were limited

The black crappie, Pomoxis nigromaculatus, as a farm pond fish in Oregon

Creator:: Stolte, Lawrence
Abstract:: The black crappie was evaluated as a pond fish in four experimental ponds in the Willamette Valley. Two ponds were stocked with largemouth bass, bluegill sunfish, and black crappie (1:9:3), and two ponds with largemouth bass and black crappie (1:3). Total biomass was greatest in the three-species ponds (80 kg/...
Resource Type:: Masters Thesis
Full Text:: the experimental ponds. Pond No. Surface Area Average Depth Water Volume (acres) (feet) (acre -feet

Aspects of reproduction, early life history, and biology of bathyal and abyssal liparididae and macrouridae (Pisces) off Oregon

Creator:: Stein, David (David Leslie)
Resource Type:: Dissertation
Full Text:: trawls off the coasts of Alaska, Washington, and Oregon in the late 19th century, but until 1962, no

ScholarsArchive@OSU

The chronic toxicity of 2,3,7,8-tetra-chlorodibenzo-p-dioxin (TCDD) to five selected aquatic organisms

Factors affecting the abundance of fall chinook salmon in the Columbia River

Systematics, variation, distribution, and biology of lampreys of the genus Lampetra in Oregon

Limnology of Upper Klamath Lake, Oregon, with emphasis on benthos

The migratory pattern of audlt sockeye salmon (Oncorhynchus nerka) in Bristol Bay as related to the distribution of their home-river waters

Behavior and survival of coho salmon, Oncorhynchus kisutch (Walbaum), in Sashin Creek, southeastern Alaska

A review of the deep water Liparidae from the coast of Oregon and adjacent waters

The freshwater fishes of Iran

The black crappie, Pomoxis nigromaculatus, as a farm pond fish in Oregon

Aspects of reproduction, early life history, and biology of bathyal and abyssal liparididae and macrouridae (Pisces) off Oregon

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