Fish cell lines: Characterization by isozyme analysis
B. C. Lidgerding, S.R. Phelps, W. B. Schill
1984, In Vitro (20) 167-171
The electrophoretic mobilities of isozymes from 16 enzyme systems were determined for nine fish cell lines. The relative migration of the malate dehydrogenase and 6-phosphoglucose dehydrogenase isozymes could be used together to distinguish between seven of the fish cell lines. Two cyprinid cell lines could not be distinguished from each...
Technological innovations in aquaculture
N. C. Parker
1984, Fisheries (9) 13-16
Technology in aquaculture has expanded at a phenomenal rate during the last 50 to 100 years. Based on both this past progress and the present technological advances being made in our society, it is reasonable to expect aquaculturists to profit from the rapid technological advances being made in both hardware...
Effects of dietary excesses of branched-chain amino acids on the metabolism and tissue composition of lake trout (Salvelinus namaycush)
S. G. Hughes, G. L. Rumsey, M.C. Nesheim
1984, Comparative Biochemistry and Physiology, Part A: Physiology (78A) 413-418
1. Excesses of either leucine, isoleucine or valine were fed in separate experiments to determine if the branched-chain amino acid antagonism reported in other animals occur in trout (Salvelinus namaycush).2. Parameters measured include growth rate, feed utilization efficiency, plasma and muscle-free amino acids, carcass composition and branched-chain amino acid aminotransferase.3....
You asked for it! Utilize ferrocement
M. Martin
1984, Aquaculture Magazine (10) 35-38
A lymphosarcoma of thymic origin in the rainbow trout, Salmo gairdneri Richardson
G.W. Warr, B.R. Griffin, D. P. Anderson, P. E. McAllister, B. Lidgerding, C. E. Smith
1984, Journal of Fish Diseases (7) 73-82
A rainbow trout with a malignant lymphoma of probable thymic origin showed direct spread of the tumour to the gills, metastases to the liver and head kidney, and the presence of abnormal circulating lymphocytes. The cells of the tumour possessed plasma membrane immunoglobulin detectable by...
Two new species of Myxozoa, Myxobolus inaequus sp. n. and Henneguya theca sp. n. from the brain of a South American knife fish, Eigemannia virescens (V.)
M.L. Kent, G. L. Hoffman
1984, Journal of Protozoology (31) 91-94
Two new species of Myxozoa from the brain of the green knife fish Eigemannia virescens are described: Myxobolus inaequus sp. n. has an unusually large spore body and extremely unequal polar capsules, and Henneguya theca sp. n. has an attenuated spore encased in a sheath not previously described in other Myxozoa. Only spores of the two...
Multilocus electrophoretic assessment of the genetic structure and diversity of Yersinia ruckeri
W. B. Schill, S.R. Phelps, S. W. Pyle
1984, Applied and Environmental Microbiology (48) 975-979
Multilocus isoenzyme electrophoresis was used to screen 47 field isolates of Yersinia ruckeri for electrophoretic variation at 15 enzyme loci. Only four electrophoretic types were observed, thus indicating that the genetic structure of Y. ruckeri is clonal. Forty-two isolates were of one electrophoretic type, a reflection of the low amount of genetic diversity extant...
Feasibility of saltwater gradient ponds as a heat supply for hatchery rearing water
J. T. Fuss
1984, Aquacultural Engineering (3) 31-37
Salt gradient solar collector ponds are economically feasible as a source of heat energy for hatchery rearing water. A pond 3 m deep and covering an area of 5000 m2 will supply approximately 2800 GJ of energy over a three-month period — enough for a one-year smolt program in an Atlantic...
Reproduction and survival of the desert tortoise (Scaptochelys agassizii) in Ivanpah Valley, California
F.B. Turner, P.A. Medica, C.L. Lyons
1984, Copeia (1984) 811-820
No abstract available....
Modeling behavior of prescribed fires in Yosemite National Park
J. W. van Wagtendonk, S.J. Botti
1984, Journal of Forestry (82) 479-484
The National Fire Danger Rating System and the Fire Behavior Prediction System were tested on prescribed fires burning underneath canopies in six fuel types in Yosemite National Park, California. The mean error for rate of spread was +0.03 foot per minute for the NFDRS and -0.15 foot for the...
Grassland restoration on eroded island soils
W. L. Halvorson
1984, Restoration & Management Notes (2) 75-76
No abstract available....
Seed predation due to the yucca moth symbiosis
Jon E. Keeley, Sterling C. Keeley, C. C. Swift, J. Lee
1984, American Midland Naturalist (112) 187-191
All species of Yucca (Agavaceae) require the pollinator services of a species of moth in the genus Tegeticula (Lepidoptera: Incurvariidae). These moths oviposit in the ovary of the plants and the larvae are entirely dependent upon Yucca seeds for food. The extent and distribution of larval seed predation was examined...
Post-fire recovery of California coastal sage scrub
Jon E. Keeley, Sterling C. Keeley
1984, American Midland Naturalist (111) 105-117
Postfire regeneration of the shrub and herb vegetation on eight coastal slopes of California coastal sage scrub was studied in the first two growing seasons after fire. All shrub species resprouted with the exception of the suffrutescent Lotus scoparius, though it is not known if this species was alive prior...
Phenotypic variation of the Mexican duck (Anas platyrhynchos diazi) in Mexico
N.J. Scott Jr., R.P. Reynolds
1984, Condor (86) 266-274
A collection of 98 breeding Mexican Ducks (Anas platyrhynchos diazi) was made in Mexico from six areas between the United States border with Chihuahua and Lake Chapala, Jalisco, in order to study geographic variation. Plumage indices showed a relatively smooth clinal change from north to south; northern populations were...
Golden Gate uses team approach on 'monumental' resource problems
J. A. Howell
1984, Park Science (4) 15-16
Proper expression of metabolizable energy in avian energetics
M. R. Miller, K. J. Reinecke
1984, Condor (86) 396-400
We review metabolizable energy (ME) concepts and present evidence suggesting that the form of ME used for analyses of avian energetics can affect interpretation of results. Apparent ME (AME) is the most widely used measure of food energy available to birds. True ME (TME) differs from AME in recognizing fecal and urinary energy of nonfood origin as...
Effects of weather on breeding ducks in North Dakota
M.C. Hammond, Douglas H. Johnson
1984, Fish and Wildlife Technical Report 1
The present report quantifies relations between weather and several aspects of the breeding biology of four duck species: mallard (Anas platyrhynchos), gadwall (A. strepera), blue-winged teal (A. discors), and redhead (Aythya americana). Data were obtained from two locations in North Dakota,--the J. Clark Salyer National Wildlife Refuge, intermittently during 1936-68,...
Lead poisoning of sandhill cranes (Grus canadensis)
R. M. Windingstad, S.M. Kerr, L. N. Locke, J. J. Hurt
1984, Prairie Naturalist (16) 21-24
Two wild and two captive sandhill cranes (Grus canadensis) were diagnosed by National Wildlife Health Laboratory personnel as having died from lead toxicity. Ingestion of lead fishing weights by the wild cranes and of unspent .22 caliber shell cartridges by the captive cranes were responsible for these deaths. One crane...
Persistence of Pasteurella multocida in Nebraska wetlands under epizootic conditions
J.I. Price, C. J. Brand
1984, Journal of Wildlife Diseases (20) 90-94
Gleason Basin, a marsh located in the western part of the Rainwater Basin in Nebraska, was selected during the 1980 spring waterfowl migration as a study site to determine the presence and persistence of virulent Pasteurella multocida. Avian cholera mortality in migratory waterfowl using the Basin increased during a 2-wk period...
A survey of North American migratory waterfowl for duck plague (duck virus enteritis) virus
Christopher J. Brand, Douglas E. Docherty
1984, Journal of Wildlife Diseases (20) 261-266
A survey of migratory waterfowl for duck plague (DP) virus was conducted in the Mississippi and Central flyways during 1982 and in the Atlantic and Pacific flyways during 1983. Cloacal and pharyngeal swabs were collected from 3,169 migratory waterfowl in these four flyways, principally mallards (Anas platyrhynchos L.), black ducks (Anas...
Avian cholera in Nebraska's Rainwater Basin
Ronald M. Windingstad, J. J. Hurt, A. K. Trout, J. Cary
1984, Transactions of the North American Wildlife and Natural Resources Conference (49) 576-583
The first report of avian cholera in North America occurred in northwestern Texas in winter 1944 (Quortrup et al. 1946). In 1975, mortality from avian cholera occurred for the first time in waterfowl in the Rainwater Basin of Nebraska when an estimated 25,000 birds died (Zinkl et al. 1977). Avian...
Notes on mortality of American white pelicans at Chase Lake, North Dakota
John G. Sidle, P.M. Arnold, R. K. Stroud
1984, Prairie Naturalist (16) 131-134
[Book review] The wildfowl of Britain and Europe
Gary L. Krapu
1984, The Auk (101) 213-214
Of about 140 extant species of waterfowl in the world, 54 occur in the western Pale- arctic. In this, his most recent book, Ogilvie introduces the reader to the waterfowl of Europe including occasional visitors and introduced species. Although written primarily for laymen, ornithologists will find the book informative but...
[Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas
Douglas H. Johnson
1984, Prairie Naturalist (16) 47-47
Review of: The youngest science: notes of a medicine-watcher. Alfred P. Sloan Foundation Series. Lewis Thomas. Penguin Books, 1995. Pennsylvania State University. 270 pp. ISBN: 0140243275, 9780140243277....
Renal coccidiosis in interior Canada geese, Branta canadensis interior Todd, of the Mississippi Valley population
Benjamin N. Tuggle, John L. Crites
1984, Journal of Wildlife Diseases (20) 272-278
Kidneys from 309 Interior Canada geese from three locations in the Mississippi Flyway were examined for renal coccidia. Oocysts and/or young zygotes of Eimeria sp. were found in 6.8% of goose kidneys sampled. Only one type of renal coccidian oocyst was observed. Significantly more immature...
