Statistical foraminiferal ecology from seasonal samples, central Oregon continental shelf
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Statistical foraminiferal ecology from seasonal samples, central Oregon continental shelf by Fredrick John Gunther

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Published .
Written in English


  • Benthos -- Oregon.,
  • Foraminifera -- Oregon.,
  • Continental shelf -- Oregon.

Book details:

Edition Notes

Statementby Fredrick John Gunther.
The Physical Object
Pagination[14], 228 leaves, bound :
Number of Pages228
ID Numbers
Open LibraryOL15520124M

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  The ecology of the benthic foraminiferal community (62– and > μm) was studied in the continental shelf off Callao (12ºS) during April Five sediment stations were sampled along a cross-shelf by: 7. Effect of seasonal hypoxia on the benthic foraminiferal community of the Louisiana inner continental shelf: The 20th century record Article in Marine Micropaleontology 54(3) . The seasonal variability of temperature and salinity in the continental shelf environments of the Bay of Biscay have previously been described by Lazure and Jegou () and Lampert ().In winter, the combination of minimal freshwater input and strong winds leads to a mixed water column, with homogeneous temperature and salinity, with the thermal and haline fronts Cited by: Seasonal variations in the hydrography of the waters over the continental shelf off Oregon were observed in a set of hydrographic data collected along 44º39′N at intervals of a few weeks to a few months from through The temperature is determined only partly by the local heating and cooling cycle: at the surface it is low (9°C) in.

The coastal waters of the northern portion of the California Current System experience a seasonal decline in oxygen concentrations and hypoxia over the summer upwelling season that results in negative impacts on habitat for many organisms. Using a regional model extending from 43°N to 50°N, with an oxygen component developed in this study, drivers of. SPATIAL DISTRIBUTION OF FORAMINIFERA IN NEAR SHORE SHELF REGION INTRODUCTION A review of the foraminiferal literature from the beaches and near shore shelf region of western continental margin of India is given in Tables a and b of Chapter 1. It is clear from this review that beaches/mudflat of the Kachchh region has been studied byFile Size: KB. ing hypoxic events on the Oregon shelf in the past [Grantham et al., ]. The seasonal trend in the slope water circulation of the region may result in a seasonal trend in the source water chemistry. As the poleward undercurrent shoals over the course of the upwelling season, it carries. Eight streams in Oregon were selected for study (fig. 1)--two in each of four geograph- ical areas: coastal Oregon, the west side of the Cascade Range, central Oregon, and eastern Oregon. Thus, a general transect of the State from west to east was sampled.

SEDIMENT SOURCES AND DISPERSAL PATTERNS OF OREGON CONTINENTAL SHELF SANDS [Scheidegger, K.F., et al] on *FREE* shipping on qualifying offers. SEDIMENT SOURCES AND DISPERSAL PATTERNS OF Author: et al Scheidegger, K.F. Historical (early s) and modern samples provide a detailed account of the spatial distribution of benthic foraminifers on the continental shelf of Monterey Bay, California. Ten species among a total of present dominated the samples investigated in the historical study. A cluster analysis of the foraminiferal abundances in the historical study identified five assemblages: . The reactions of foraminiferal and calcareous nannoplankton assemblages to global warming and cooling events in the time intervals of ca. 27 to 19 Ma and to Author: Katarína Holcová. The first cluster grouped samples of the Inner Shelf Assemblage, located from the shore to a water depth of about 55 m. These samples contain a foraminiferal assemblage consisting of dominant Elphidiella hannai (mean 32%/max 76%), abundant Nonionella basispinata (mean 12%/max 37%), Buccella frigida (mean 12%/max 25%) and Elphidium excavatum var. Cited by: