Zobrazeno 1 - 10 of 81 pro vyhledávání: '"Lloyd L. Smith"'
1
Walleye (Stizostedion vitreum vitreum) and Yellow Perch (Perca flavescens) Populations and Fisheries of the Red Lakes, Minnesota, 1930–75
Autor: Lloyd L. Smith
Publikováno v: Journal of the Fisheries Research Board of Canada. 34:1774-1783
In an investigation of the commercial fishery of Red Lakes, Minnesota, for the 46-yr period 1930–75, catch statistics were analyzed, and the dynamics of the perch and walleye populations were examined. Mean annual yields of walleye for two statisti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0569982fbf9ad2b5e5f9d40715316f0
https://doi.org/10.1139/f77-243
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2
Chronic Toxicity of Hydrogen Sulfide to Gammarus pseudolimnaeus
Autor: Donavon M. Oseid, Lloyd L. Smith
Publikováno v: Transactions of the American Fisheries Society. 103:819-822
Gammarus pseudolimnaeus from two trout streams were exposed to various levels of hydrogen sulfide from 0.0007 to 0.0192 mg/liter in a flow-through apparatus for periods of 65, 95, and 105 days in four tests. Results indicate that 0.002 mg/liter of H2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::199584d75e7257bae944cbaedb99220c
https://doi.org/10.1577/1548-8659(1974)103<819:ctohst>2.0.co
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3
Influence of Food Competition, Predation, and Cannibalism on Walleye (Stizostedion vitreum vitreum) and Sauger (S. canadense) Populations in Lake of the Woods, Minnesota
Autor: Lloyd L. Smith, William A. Swenson
Publikováno v: Journal of the Fisheries Research Board of Canada. 33:1946-1954
Feeding relationships between walleye, Stizostedion vitreum vitreum, and sauger, Stizostedion canadense, in Lake of the Woods, Minnesota, were investigated. Effectiveness of food consumption estimates in measuring feeding interactions was defined. Di
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23dfb37d17d6177658fd5c6bb46a9a5c
https://doi.org/10.1139/f76-248
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5
First-Year Growth of the Yellow Perch, Perca flavescens, in the Red Lakes, Minnesota
Autor: Lloyd L. Smith, John J. Ney
Publikováno v: Transactions of the American Fisheries Society. 104:718-725
First-year growth of the yellow perch, Perca flavescens (Mitchill), was determined from 28,241 young-of-the-year fish collected in the Red Lakes during the summer (1 July-20 August) in 15 seasons and on back calculations from I-annulus fish of the sa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9c71b59d2345bedf8840a7cb9550910
https://doi.org/10.1577/1548-8659(1975)104<718:fgotyp>2.0.co
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6
Toxicity of Hydrogen Sulfide to Various Life History Stages of Bluegill (Lepomis macrochirus)
Autor: Sayed M. El-Kandelgy, Donavon M. Oseid, Gary L. Kimball, Lloyd L. Smith
Publikováno v: Transactions of the American Fisheries Society. 105:442-449
Bluegill (Lepomis macrochirus Rafinesque) eggs, fry, juveniles, and adults were exposed to H2S concentrations to determine acute toxicity. Seventy-two-hour LC50 for eggs was 0.0190 mg/liter; 96-h LC50 for 35-day-old fry was 0.0131 mg/liter, for juven
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4cff990e7f731551e9f955e015839c8
https://doi.org/10.1577/1548-8659(1976)105<442:tohstv>2.0.co
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7
Acute and chronic toxicity of hydrogen sulfide to the fathead minnow, Pimephales promelas
Autor: Lloyd L. Smith, Donavon M. Oseid, Larry E. Olson
Publikováno v: Environmental Science & Technology. 10:565-568
Toxic effects of molecular hydrogen sulfide to eggs, fry, and juveniles of the fathead minnow, Pimephales promelas Rafinesque, were determined in flow-through bioassays. The 96-h LC50 of laboratory-cultured juveniles at 20/sup 0/C was 0.0243 mg/l. H/
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c364c886bd9af97a781166e33d5feae
https://doi.org/10.1021/es60117a001
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8
Long-term Effects of Hydrogen Sulfide on Hexagenia limbata (Ephemeroptera) 1
Autor: Donavon M. Oseid, Lloyd L. Smith
Publikováno v: Environmental Entomology. 4:15-18
Nymphs of the mayfly Hexagenia limbata (Serville) were subjected to hydrogen sulfide in test chambers with a mud substrate into which they could burrow. Acute and chronic tests were in flow-through apparatus. At 17.8-18.3/sup 0/C and O/sub 2/ of 4.5-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8f13537f906d232ca34be5806a8c624
https://doi.org/10.1093/ee/4.1.15
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9
Factors influencing acute toxicity estimates of hydrogen sulfide to freshwater invertebrates
Autor: Lloyd L. Smith, Donavon M. Oseid
Publikováno v: Water Research. 8:739-746
Acute bioassay tests of hydrogen sulfide were run on Assellus militaris Hay, Crangonyx richmondensis laurentianus Bousfield. Gammarus pseudolimnacus Bousfield. Bactis vagans McDonough. Ephemera simulans Walker and Hexagenia limbata (Serville). Size a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7641bacdcf12c885d43ef0c14c18756e
https://doi.org/10.1016/0043-1354(74)90018-9
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10
Relative Toxicity of Free Cyanide and Dissolved Sulfide Forms to the Fathead Minnow (Pimephales promelas)
Autor: David T. Lind, Steven J. Broderius, Lloyd L. Smith
Publikováno v: Journal of the Fisheries Research Board of Canada. 34:2323-2332
The relationship between pH and acute toxicity of free cyanide (i.e. HCN + CN−) and dissolved sulfide (i.e. H2S + HS− + S2−) to the fathead minnow (Pimephales promelas) at 20 °C was determined for pH values ranging from about 6.8 to 9.3 and 6.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9c1ccec73c6398405e5d78fe4c89eae
https://doi.org/10.1139/f77-311
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