Petrology of Submarine Lavas from Kilauea's Puna Ridge, Hawaii
D. A. Clague, James G. Moore, J.E. Dixon, W.B. Friesen
1995, Journal of Petrology (36) 299-349
We have studied 30 quenched tholeiitic lava flows recovered by 20 dredge hauls and one submersible dive along Puna Ridge, the submarine part of the East Rift Zone of Kilauea Volcano, Hawaii Glass grains from numerous additional flows were recovered in turbidite sands cored in the Hawaiian Trough. These quenched...
Middle Tertiary extension recorded by lacustrine fan-delta deposits, Plush Ranch Basin, western Transverse Ranges, California
Ronald B. Cole, Richard G. Stanley
1995, Journal of Sedimentary Research (65) 455-468
The Plush Ranch Formation (upper Oligocene and lower Miocene) consists of more than 1800 m of nonmarine sedimentary and volcanic rocks that record the history of an extensional basin referred to here as the Plush Ranch basin. Distinctive depositional facies, provenance, and sediment transport directions along each basin margin suggest...
Serotypes and DNA fingerprint profiles of Pasteurella multocida isolated from raptors
M. A. Wilson, R. M. Duncan, G.E. Nordholm, B.M. Berlowski
1995, Avian Diseases (39) 94-99
Pasteurella multocida isolates from 21 raptors were examined by DNA fingerprint profile and serotyping methods. Isolates were obtained from noncaptive birds of prey found in 11 states from November 28, 1979, through February 10, 1993. Nine isolates were from bald eagles, and the remaining isolates were from hawks, falcons, and...
Estimation of rod scale errors in geodetic leveling
Michael R. Craymer, Petr Vaníček, Robert O. Castle
1995, Journal of Geophysical Research B: Solid Earth (100) 15129-15145
Comparisons among repeated geodetic levelings have often been used for detecting and estimating residual rod scale errors in leveled heights. Individual rod-pair scale errors are estimated by a two-step procedure using a model based on either differences in heights, differences in section height differences, or differences in section tilts. It...
A ten-year history of the demography and productivity of an Arctic wolf pack
L.D. Mech
1995, Arctic (48) 329-332
A pack of two to eight adult wolves (Canis lupus arctos) and their pups was observed during ten summers (1986-95) on Ellesmere Island, Northwest Territories, Canada. The author habituated the wolf pack to his presence in the first summer and reinforced the habituation each summer thereafter. The first alpha female...
Trichomoniasis as a factor in mourning dove population decline in Fillmore, Utah
William D. Ostrand, John A. Bissonette, M. R. Conover
1995, Journal of Wildlife Diseases (31) 87-89
We examined whether trichomoniasis had been a factor in a dramatic mourning dove (Zenaida macroura) population decline in Fillmore, Utah (USA). We reasoned that if we could not find a high proportion of doves showing clinical signs of disease then the population was not being affected. Prevalences of Trichomonas...
Detection and identification of aquatic birnaviruses by PCR assay
S.L. Blake, W. B. Schill, P. E. McAllister, M.K. Lee, J.T. Singer, B.L. Nicholson
1995, Journal of Clinical Microbiology (33) 835-839
A reverse transcriptase polymerase chain reaction (RT-PCR) assay was developed for the detection and identification of aquatic birnaviruses. The four sets of primers (PrA, PrB, PrC, and PrD) that we used are specific for regions of cDNA coded by genome segment A of aquatic birnaviruses. PrA identifies a large fragment...
Lake trout rehabilitation in Lake Ontario
Joseph H. Elrod, Robert O’Gorman, Clifford P. Schneider, Thomas H. Eckert, Ted Schaner, James N. Bowlby, Larry P. Schleen
1995, Journal of Great Lakes Research (21) 83-107
Attempts to maintain the native lake trout (Salvelinus namaycush) population in Lake Ontario by stocking fry failed and the species was extirpated by the 1950s. Hatchery fish stocked in the 1960s did not live to maturity because of sea lamprey (Petromyzon marinus) predation and incidental commercial harvest. Suppression of sea...
Effect of seasonally changing feeding habits on whole-animal mercury concentrations in Hydropsyche morosa (Trichoptera: Hydropsychidae)
C.D. Snyder, A.C. Hendricks
1995, Hydrobiologia (299) 115-123
Food habits, net-spinning activity, and whole-animal mercury concentrations in Hydropsyche morosa Hagan were examined monthly over a one year period on the South River, Virginia. Gut content analysis revealed seasonal patterns in the consumption of food that was correlated with net-spinning activity. Between April and October, when feeding...
Impact of flooding on the densities of selected aquatic insects
A.C. Hendricks, L.D. Willis, C. Snyder
1995, Hydrobiologia (299) 241-247
Data from a four-year study of five aquatic insect species,Hydropsyche betteni, H. morosa, H. bronta, Isonychia bicolor, andEphoron leucon, were utilized to evaluate the impact of a 60-year flood and a few lesser floods. The survey began in August, 1984 and was terminated in October, 1987...
Diel feeding chronology of six fish species in the Juniata River, Pennsylvania
J. H. Johnson, D. S. Dropkin
1995, Journal of Freshwater Ecology (10) 11-18
We examined diel feeding chronology of six fish species in the Juniata River, Pennsylvania. Ephemeropteran nymphs were the major prey of redbreast sunfish (Lepomis auritus; 70.5%) and smallmouth bass (Micropterus dolomieu; 59.7%) during each of six 4-h intervals over a 24-h period. The main dietary component of mimic...
Repertoire, structure, and individual variation of vocalizations in the sea otter
L.J. McShane, J. A. Estes, Marianne L. Riedman, M. M. Staedler
1995, Journal of Mammalogy (76) 414-427
Vocalizations of the California sea otter (Enhydra lutris nereis) were recorded from wild and captive adults and young and analyzed spectrographically. Parameters measured from the sonagrams included fundamental frequency, duration, maximum frequency, intercall interval, and the location and amplitude of energy peaks. We identified 10 basic vocal categories, one...
Apparent digestibility coefficients of carbohydrates for white sturgeon
M.A. Herold, S. S. O. Hung, K. Fynn-Aikins
1995, Progressive Fish-Culturist (57) 137-140
Apparent digestibility coefficients (ADCs) were determined for white sturgeons (Acipenser transmontanus) fed purified diets containing different carbohydrates. White sturgeons were fed, at a rate of 1.0% body weight!d, diets containing one of nine carbohydrates, and feces were collected by manual stripping following a 2‐week feeding period; chromium sesquioxide (Cr2O3) was...
Lake trout rehabilitation in Lake Huron
Randy L. Eshenroder, N. Robert Payne, James E. Johnson, Charles Bowen II, Mark P. Ebener
1995, Journal of Great Lakes Research (21) 108-127
Efforts to restore lake trout (Salvelinus namaycush) in Lake Huron after their collapse in the 1940s were underway in the early 1970s with completion of the first round oflampricide applications in tributary streams and the stocking of several genotypes. We assess...
An evaluation of lake trout reproductive habitat on Clay Banks Reef, northwestern Lake Michigan
Thomas A. Edsall, Mark E. Holey, Bruce A. Manny, Gregory W. Kennedy
1995, Journal of Great Lakes Research (21) 418-432
The extinction of the native populations of lake trout (Salvelinus namaycush) in Lake Michigan in about 1956 has been followed by a decades-long attempt to reestablish self-sustaining populations of this valuable species in habitats it formerly occupied throughout the lake. One of the most recent management strategies designed to facilitate...
Formation and regression of the corpus luteum of the American alligator
L. J. Guillette, A.R. Woodward, Q. You-Xiang, M.C. Cox, J.H. Matter, T. S. Gross
1995, Journal of Morphology (224) 97-110
Luteal morphology of the American alligator is unique when compared to other reptiles but is similar to that of its phylogenetic relatives, the birds. The theca is extensively hypertrophied, but the granulosa never fills the cavity formed following the ovulation of the ovum. The formation of the corpus luteum (CL)...
Probable epizootic chlamydiosis in wild California (Larus californicus) and ring-billed (Larus delawarensis) gulls in North Dakota
J. C. Franson, J.E. Pearson
1995, Journal of Wildlife Diseases (31) 424-427
During the summer of 1986, more than 400 California gulls (Larus californicus) and ring-billed gulls (Larvus delawarensis), primarily fledglings, died on an island in Lake Sakakawea near New Town, North Dakota (USA). Mortality was attributed largely to chlamydiosis. Necropsy findings in nine carcasses included splenomegaly (n = 9), hepatomegaly (n...
Endangered cui-ui of Pyramid Lake, Nevada
G. Gary Scoppettone, Peter H. Rissler
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
Cui-ui (Chasmistes cujus) is a large plankton-feeding fish that only occurs in Pyramid Lake, Nevada. It was put on the federal endangered list in 1967 based on declining population and absence of reproduction. A lake dweller, cui-ui is a stream spawner. Most of this century, this sucker species was unable...
Interlaboratory study of a method for determining nonvolatile organic carbon in aquifer materials
M.E. Caughey, M.J. Barcelona, R.M. Powell, R.A. Cahill, C. Gron, D. Lawrenz, P.L. Meschi
1995, Environmental Geology (26) 211-219
The organic carbon fraction in aquifer materials exerts a major influence on the subsurface mobilities of organic and organic-associated contaminants. The spatial distribution of total organic carbon (TOC) in aquifer materials must be determined before the transport of hydrophobic organic pollutants in aquifers can be modeled accurately. Previous interlaboratory studies...
Rhenium-osmium concentration and isotope systematics in group IIAB iron meteorites
J. W. Morgan, M.F. Horan, R.J. Walker, J. N. Grossman
1995, Geochimica et Cosmochimica Acta (59) 2331-2344
Rhenium and osmium abundances, and osmium isotopic compositions were measured by negative thermal ionization mass spectrometry in thirty samples, including replicates, of five IIA and eight IIB iron meteorites. Concentrations in HA irons range from 4800 ppb Re and 66000 ppb Os (Negrillos) to 160 ppb Re and 800 ppb...
Frictional slip of granite at hydrothermal conditions
M.L. Blanpied, D.A. Lockner, J.D. Byerlee
1995, Journal of Geophysical Research (100) 13045-13064
Sliding on faults in much of the continental crust likely occurs at hydrothermal conditions, i.e., at elevated temperature and elevated pressure of aqueous pore fluids, yet there have been few relevant laboratory studies. To measure the strength, sliding behavior, and friction constitutive properties of faults...
Fluxes of water and solute in a coastal wetland sediment. 2. Effect of macropores on solute exchange with surface water
J. W. Harvey, W.K. Nuttle
1995, Journal of Hydrology (164) 109-125
Chloride was highly concentrated relative to seawater in matrix porewater but was comparatively dilute in macropores. Concentration differences in pore-size classes declined with depth until indistinguishable below 10 cm. The segregated chloride distribution can be explained if recharge to the sediment occurred by downward infiltration in macropores and discharge occurred...
Constraints on formation processes of two coarse-grained calcium- aluminum-rich inclusions: A study of mantles, islands and cores
G.P. Meeker
1995, Meteoritics (30) 71-84
Many coarse-grained calcium- aluminum-rich inclusions (CAIs) contain features that are inconsistent with equilibrium liquid crystallization models of origin. Spinel-free islands (SFIs) in spinel-rich cores of Type B CAIs are examples of such features. One model previously proposed for the origin of Allende 5241, a Type B1 CAI containing SFIs, involves...
Giant blocks in the South Kona landslide, Hawaii
J.G. Moore, W.B. Bryan, M.H. Beeson, W. R. Normark
1995, Geology (23) 125-128
A large field of blocky sea-floor hills, up to 10 km long and 500 m high, are gigantic slide blocks derived from the west flank of Mauna Loa volcano on the island of Hawaii. These megablocks are embedded in the toe of the...
A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments
J.M. Caffrey, L.G. Miller
1995, FEMS Microbiology Ecology (17) 213-219
Nitrification rates were measured using intact sediment cores from South San Francisco Bay and two different nitrification inhibitors: acetylene and methyl fluoride. Sediment oxygen consumption and ammonium and nitrate fluxes were also measured in these cores. Four experiments were conducted in the spring, and one in the fall of 1993....
