Potamocorbula amurensis discovered in San Francisco Bay
Laurence E. Schemel
1989, Interagency Ecological Program Newsletter (1) 3-3
The small Asian clam, Potamocorbula amurensis, is now a major component of benthic communities in most areas of northern San Francisco Bay and some areas of South Bay. Because of its wide tolerance of salinity and other environmental variables and its high abundance in many areas, benthic ecologists believe this...
Post-flood measurement of a refilled scour hole at the Bulkeley Bridge in Hartford, Connecticut
F.P. Haeni, S.R. Gorin
1989, Conference Paper, Proceedings of the Bridge Scour Symposium
No abstract available....
Bottomland handwood reforestation in the lower Mississippi River Valley
James A. Allen, H.E. Kennedy Jr.
1989, Book
We prepared this bulletin to assist you--as a farmer or other private landowner--in reestablishing forests on part of your land. It will be most useful to you if your land is in the Lower Mississippi Valley and your main reason for reforestation is to produce wildlife habitat, either for private...
Modeling coastal Louisiana's vulnerability to oil and toxic chemical spills
Floyd O. Stayner, James B. Johnston, James D. Scurry
1989, Conference Paper, Visual solutions right at your fingertips : NCGA mapping and geographic information systems '89 : Conference proceedings
No abstract available....
Streamside habitats in southern forested wetlands: Their role and implications for management
Rebecca J. Howard, James A. Allen
1989, General Technical Report SE-50
The value of streamside forests to fish and wildlife and the influence of forest management on their value have been recognized in a general sense for decades. However, in today’s climate of increasing environmental regulation and intensive forest management, there is need for more detailed understanding of the value of streamside forests to fish and wildlife....
Stop 16: Trench 14
Emily M. Taylor, John S. Stuckless, S. S. Levy
1989, Conference Paper, This Extended land: Geological journeys in the Southern Basin and range: Field trip guidebook
No abstract available....
Stratigraphy and sedimentology of Middle and Upper Silurian rocks and an enigmatic diamictite, southeastern New York
Anthony Prave, Moses Alcala, Jack B. Epstein
1989, Conference Paper, New York State Geological Association; 61st annual meeting; field trip guidebook
No abstract available....
Mapping eelgrass beds in Izembek Lagoon using Landsat MSS data
Carl Markon
1989, Conference Paper, Technical proceedings: 24th Annual Alaska surveying and mapping conference
No abstract available....
Modeling bottomland forest and wildlife habitat changes in Louisiana's Atchafalaya Basin
Michael S. Brody, William H. Conner, L. Pearlstine, Wiley M. Kitchens
1989, Conference Paper, Freshwater wetlands and wildlife: Proceedings of a symposium
No abstract available....
Tectonostratigraphic terranes and their Paleozoic boundaries in the central and southern Appalachians
J. Wright Horton, Jr., A.A. Drake, D.W. Rankin
1989, Geological Society of America Special Papers (230) 213-245
Parts of the central and southern Appalachian orogen appear to have evolved away from Proterozoic North America (Laurentia) and to have been accreted to it during the Paleozoic orogenies that collectively formed the orogen. Identifying each tectonostratigraphic terrane is a necessary step in understanding the evolution of the orogen. The terranes in the central and southern Appalachians are...
Velocities of antarctic outlet glaciers determined from sequential Landsat images
Thomas R. MacDonald, Jane G. Ferrigno, Richard S. Williams Jr., Baerbel K. Lucchitta
1989, Antarctic Journal of the United States (24) 105-106
Approximately 91.0 percent of the volume of present-day glacier ice on Earth is in Antarctica; Greenland contains about another 8.3 percent of the volume. Thus, together, these two great ice sheets account for an estimated 99.3 percent of the total. Long-term changes in the volume of glacier ice on our...
Structure of the lower crust beneath the Carolina Trough, U.S. Atlantic continental margin
Anne M. Trehu, A. Ballard, L.M. Dorman, J.F. Gettrust, Kim D. Klitgord, A. Schreiner
1989, Journal of Geophysical Research B: Solid Earth (94) 10585-10600
Data from three large-offset seismic profiles provide information on the crustal structure beneath the Carolina trough. The profiles, obtained by the U.S. Geological Survey, the Naval Oceanographic Research Development Agency, and the Scripps Institution of Oceanography in 1985, were oriented parallel to the trough and were located (1) seaward of...
Sensitivity of endemic Snake River cutthroat trout to acidity and elevated aluminum
D. F. Woodward, Aida M. Farag, M.E. Mueller, E. E. Little, F. A. Vertucci
1989, Transactions of the American Fisheries Society (118) 630-643
Acidic episodes in waters of the western USA, do not last as long and are not as intense as those in the eastern USA, but we found that the native western cutthroat trout Oncorhynchus clarki is sensitive to even brief reductions in pH. In laboratory studies, fish were exposed to acidity (pH...
Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models
Robert N. Oldale
1989, Book chapter
Glaciomarine mud in the Gulf of Maine, characterized by rhythmic seismic layers that mimic the morphology of the underlying surface, is composed of subequal amounts of silt and clay, variable amounts of sand, and sparse gravel-sized clasts. The mud is Wisconsinan in age and was deposited during the retreat of...
Extensional faulting in the southern Klamath Mountains, California
R.A. Schweickert, W. P. Irwin
1989, Tectonics (8) 135-149
Large northeast striking normal faults in the southern Klamath Mountains may indicate that substantial crustal extension occurred during Tertiary time. Some of these faults form grabens in the Jurassic and older bedrock of the province. The grabens contain continental Oligocene or Miocene deposits (Weaverville Formation), and in two of...
Landslides: Extent and economic significance in the United States
E. E. Brabb
E. E. Brabb, B. L. Harrod, editor(s)
1989, Book chapter
No abstract available....
Workshop on regional landslide mapping
E. E. Brabb
1989, Conference Paper, Environmental, engineering, and urban geology in the United States
No abstract available....
Sedimentology of the Upper Devonian to Lower Mississippian(?) Kanayut Conglomerate in the vicinity of the Trans-Alaska Pipeline, Brooks Range, Alaska
Thomas E. Moore, T. H. Nilsen, W. P. Brosge
C. G. Mull, K.E. Adams, editor(s)
1989, Book chapter, Dalton Highway, Yukon River to Prudhoe Bay, Alaska: Alaska Division of Geological and Geophysical Survey Guidebook
No abstract available....
Voyager 2 at Neptune: Imaging science results
B.A. Smith, Laurence A. Soderblom, D. Banfield, C. Barnet, A.T. Basilevsky, R.F. Beebe, K. Bollinger, J. M. Boyce, A. Brahic, G.A. Briggs, R. H. Brown, C. Chyba, S.A. Collins, T. Colvin, A.F. Cook II, D. Crisp, S.K. Croft, D. Cruikshank, J.N. Cuzzi, G. E. Danielson, M. E. Davies, E. DeJong, L. Dones, D. Godfrey, J. Goguen, I. Grenier, V. Haemmerle, H. Hammel, C.J. Hansen, C.P. Helfenstein, C. Howell, G.E. Hunt, A.P. Ingersoll, T. V. Johnson, J. Kargel, Randolph L. Kirk, D.I. Kuehn, S. Limaye, H. Masursky, A. McEwen, D. Morrison, T. Owen, W. Owen, J. B. Pollack, C.C. Porco, K. Rages, P. Rogers, D. Rudy, C. Sagan, J. Schwartz, E.M. Shoemaker, M. Showalter, B. Sicardy, D. Simonelli, J. Spencer, L.A. Sromovsky, C. Stoker, R.G. Strom, V.E. Suomi, S.P. Synott, R.J. Terrile, P. Thomas, W.R. Thompson, A. Verbiscer, J. Veverka
1989, Science (246) 1422-1449
Voyager 2 images of Neptune reveal a windy planet characterized by bright clouds of methane ice suspended in an exceptionally clear atmosphere above a lower deck of hydrogen sulfide or ammonia ices. Neptune's atmosphere is dominated by a large anticyclonic storm system that has been named the Great Dark Spot...
Prodigious submarine landslides on the Hawaiian Ridge
James G. Moore, David A. Clague, R. T. Holcomb, Peter W. Lipman, William R. Normark, Michael E. Torresan
1989, Journal of Geophysical Research B: Solid Earth (94) 17465-17484
The extensive area covered by major submarine mass wasting deposits on or near the Hawaiian Ridge has been delimited by systematic mapping of the Hawaiian exclusive economic zone using the side‐looking sonar system GLORIA. These surveys show that slumps and debris avalanche deposits are exposed over about 100,000 km2 of the...
Two new species of South American Centrolenella (Anura: Centrolenidae) related to C. mariae
Glenn Flores, Roy W. McDiarmid
1989, Herpetologica (45) 401-411
Two new Centrolenella are described, C. azulae from the Cordillera Azul of Perú, and C. puyoensis from the Amazonian slopes of the Ecuadorian Andes. Centrolenella azulae is distinguished by its moderately large size, the presence of vomerine teeth, a snout truncate in dorsal view and slightly protruding in profile,...
Disease-related aspects of conserving the endangered Hawaiian Crow
C. David Jenkins, Stanley A. Temple, Charles van Riper, Wallace R. Hansen
1989, The ICBP Technical Publication (10) 77-87
No abstract available....
Comparison of on-site and laboratory toxicity tests: derivation of site-specific criteria for un-ionized ammonia in a Colorado transitional stream
Del Wayne R. Nimmo, Denise Link, Loys P. Parrish, Glenn J. Rodriguez, William Wuerthele, Patrick H. Davies
1989, Environmental Toxicology and Chemistry (8) 1177-1189
Acute tests with fathead minnows (Pimephales prornelas Rafinesque), johnny darters (Etheostoma nigrum Rafinesque), white suckers (Catostomus commersoni Lacépède) and acute and chronic tests with Ceriodaphnia dubia were conducted to evaluate whether characteristics of the St. Vrain River in Colorado would ameliorate or enhance toxicity of un-ionized ammonia compared to laboratory...
Growth and fat-body cycles in feral populations of the African clawed frog, Xenopus laevis (Pipidae), in California with comments on reproduction
Michael J. McCoid, Thomas H. Fritts
1989, Southwestern Naturalist (34) 499-505
Feral populations of the African clawed frog (Xenopus laevis) exist in several areas of southern California. By following the first cohort of progeny produced by African clawed frogs at a recently colonized site, data on the growth rates and age at first maturity were obtained in field conditions....
Comparison: US P-61 and Delft sediment samplers
Joseph P. Beverage, David T. Williams
1989, Journal of Hydraulic Engineering (115) 1702-1706
The Delft Bottle (DB) is a flow-through device designed by the Delft Hydraulic Laboratory (DHL), The Netherlands, to sample sand-sized sediment suspended in streams. The US P-61 sampler was designed by the Federal Interagency Sedimentation Project (FISP) at the St. Anthony Falls Hydraulic Laboratory, Minneapolis, Minnesota, to collect suspended sediment...
