Results 271 to 280 of about 13,008 (304)

Status of Pacific Salmon and Steelhead Escapements in Southeastern Alaska

Fisheries, 1996
Abstract We evaluated the status of Pacific salmon and steelhead (Oncorhynchus mykiss) in southeastern Alaska. Of 9,296 spawning aggregates identified in this region, some data were available for 4,009 (43%), and 928 (10%) had sufficient information to analyze for escapement trend. Of those analyzed, 333 (36%) were increasing, 556 (60%) were stable, 37
Timothy T. Baker, Alex C. Wertheimer, Robert D. Burkett, Ronald Dunlap, Douglas M. Eggers, Ellen I. Fritts, Anthony J. Gharrett, Rolland A. Holmes, Richard L. Wilmot   +8 more
openaire   +1 more source

Ocean color variability in the southern Atlantic and southeastern Pacific

SPIE Proceedings, 2012
The chlorophyll-a concentration (Chl a ) of surface waters is commonly retrieved from space using an empirical polynomial function of the maximum band ratio (MBR), i.e., the maximum ratio of remote sensing reflectance in selected spectral bands in the visible. Recent studies have revealed significant deviations in the relation between MBR and Chl a
Natalia M. Rudorff, Robert J. Frouin, Milton Kampel   +2 more
openaire   +1 more source

Low-Frequency Atmospheric Oscillations over the Southeastern Pacific

Journal of the Atmospheric Sciences, 1987
A 40-50 day atmospheric oscillation has recently been reported in the southeastern Pacific based on analyses of satellite-derived microwave brightness temperature data. Prior to this, such oscillations have not been generally recognized in this region.
Charles E. Graves, John L. Stanford
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Abyssal circulation of the southeastern Pacific and some geological implications

Journal of Geophysical Research, 1976
The abyssal circulation of the Pacific Ocean east of the East Pacific Rise is deduced from hydrographic data, supported by a few direct current measurements. Two main flow paths are recognized: across the Chile Rise into the Chile Basin, and thence northward into the Peru Basin and Panama Basin; and eastward across the East Pacific Rise into the ...
openaire   +3 more sources

Distribution of opal and quartz on the ocean floor of the subtropical southeastern Pacific

Geology, 1977
The distribution patterns of opal and quartz on the ocean floor of the subtropical southeastern Pacific have been defined by analyzing 59 surface-sediment samples. The opal distribution resembles that of primary productivity in the surface waters, except along the Peruvian and northern Chilean coasts, where dilution reduces opal values.
Adolfo Molina-Cruz, Patricia Price
openaire   +1 more source

Ocean-Cloud-Atmosphereland Interactions in the Southeastern Pacific

American Meteorological Society. Bulletin, 2014
The present paper describes the Variability of the American Monsoon Systems (VAMOS) Ocean-Cloud-Atmosphere-Land Study (VOCALS), an international research program focused on the improved understanding and modeling of the southeastern Pacific (SEP) climate system on diurnal to interannual time scales.
Mechoso, C R, Wood, R, Weller, R, Bretherton, C S, Clarke, A D, Coe, H; id_orcid 0000-0002-3264-1713, Fairall, C, Farrar, J T, Feingold, G, Garreaud, R, Grados, C, McWilliams, J, de Szoeke, S P, Yuter, S E, Zuidema, P   +14 more
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Radiolarian assemblages and their relationship to the oceanography of the subtropical southeastern Pacific

Marine Micropaleontology, 1977
Abstract Micropaleontological data have been analyzed through mathematical and statistical procedures in order to establish the distribution pattern of radiolarian assemblages in the surface sediments and to establish the relationship of these assemblages with oceanographic variables.
openaire   +1 more source

Fishes eaten by Alepisaurus (Pisces, Iniomi) in the southeastern Pacific Ocean

Deep Sea Research and Oceanographic Abstracts, 1966
Abstract Annotated identifications of 32 species (21 families) of fishes from the stomachs of Alepisaurus and tunas longlined in the southeastern Pacific Ocean are presented. Many are recorded from this region for the first time. A comparison between these fishes and fishes from North Atlantic Alepisaurus revealed that 39% of the species were ...
Richard L. Haedrich, Jørgen G. Nielsen
openaire   +1 more source

Silica distribution in interstitial waters and sediments from the southeastern pacific

Sedimentary Geology, 1982
Abstract Analyses for silica in the interstitial water of five cores from the southeast Pacific are presented. Silica is enriched in these interstitial waters resulting in a vertical flux of silica of between 10 and 50 μmol cm −2 yr −1 from the sediment into the overlaying seawater.
openaire   +1 more source

Major Neogene events of the Southeastern Pacific: the Chilean and Peruvian record

Palaeogeography, Palaeoclimatology, Palaeoecology, 1990
Abstract According to the biochronostratigraphic model proposed, the Neogene marine deposits in Chile and Peru represent two independent transgressive sequences (Alloformations), separated by a major regional hiatus. The earlier sequence, NSEPS-I, would stretch from the top of the Early Miocene up to the base of the Late Miocene (ca. 19-10 m.y.
openaire   +1 more source