Communities and microhabitats of living benthic foraminifera from the tropical East Atlantic

Living (Rose Bengal stained) benthic foraminifera were collected with a multicorer from six stations between 2°N and 12°S off West Africa. The foraminiferal communities in the investigated area reflect the direct influence of different productivity regimes, and are characterized by spatially and seasonally varying upwelling activity. At five stations, foraminiferal abundance coincides well with the gradient of surface productivity. However, at one station off the Congo River, the influence of strong fresh water discharge is documented. Although this station lies directly in the center of an upwelling area, foraminiferal standing stocks are surprisingly low. It is suggested that the Congo discharge may induce a fractionation of the organic matter into small and light particles of low nutritional content, by contrast to the relatively fast-sinking aggregates found in the centers of high productivity areas. Quality and quantity of the organic matter seem to influence the distribution of microhabitats as well. The flux of organic carbon to the sea-floor controls the sequence of degradation of organic matter in sediment and the position of different redox fronts. The vertical foraminiferal stratification within sediment closely parallels the distribution of oxygen and nitrate in porewater, and reflects different nutritive strategies and adaptation to different types of organic matter. The epifauna and shallow infauna colonize oxygenated sediments where labile organic matter is available. The intermediate infauna (M. barleeanum) is linked to the zone of nitrate reduction in sediments where epifaunal and shallow infaunal species are not competitive anymore, and must feed on bacterial biomass or on metabolizable nutritious particles produced by bacterial degradation of more refractory organic matter. The deep infauna shows its maximum distribution in anoxic sediments, where no easily metabolizable organic matter is available.

Issues and innovations in distance learning /

"September 1998"--T.p. verso.

Analysis of some cloud and frontal events : recorded during the Boulder Upslope Cloud Observation Experiment (BUCOE) of 1982 /

"March 1984."

The novels and stories of Richard Harding Davis ...

Fronts to [v. 1] and [v. 12] are ports.

Plutarch's lives, /

Fronts. engraved by A. Doolittle.

The letters of Horace Walpole, fourth earl of Orford;

Vol. 3 has title: Supplement to the letters of Horace Walpole, fourth earl of Orford, together with upwards of one hundred and fifty letters addressed to Walpole between 1735 and 1796.

The works of Beaumont & Fletcher;

Original stamped cloth; gilt spine.

The works of the British poets : with lives of the authors /

Imprint varies : vols. 1-25: as above; vols. 26-29, 32-35, 43-45, 47-50: Philadelphia, Samuel F. Bradford for John Laval.

The adventures of Gil Blas of Santillane /

The fronts. after J.K. Meadows, othera plates are etchings by George Cruikshank.

The story of the great war ...

Another issue in 8 vols. has title: The story of the great war, the complete historical records of events to date. Illustrated with drawings, maps and photographs by Francis J. Reynolds ... Allen L. Churchill ... Francis Trevelyan Miller ...

C. Cornelii Taciti Quae exstant opera /

Vol. 1 includes a life of Tacitus by Justus Lipsius, excerpts from various writers, a genealogical table, and Books 1-6 of the Annales; v. 2, Books 11-16 of the Annales, the Germania, and the Agricola; v. 3, the Historiae; each volume includes summaries, notes, and an index.

The works of that eminent servant of Christ, John Bunyan; minister of the gospel, and formerly pastor of a congregation at Bedford ...

Mode of access: Internet.

Michigan Union addition, 1936-1937

Irving Kane and Allen B. Pond, architects. Plans for the Union were on a scale unknown at the time for "club houses" in American colleges and universities: 250 feet long and 200 feet wide. Construction began in 1916 and owing to war time difficulties was not ready to be used by students until 1919. Two new wings to the south were completed in 1936 and 1938. The first wing runs parallel to the main structure while the other fronts on Madison Street. View of the construction site looking toward the southwest.

Michigan Union addition, 1936-1937

Irving Kane and Allen B. Pond, architects. Plans for the Union were on a scale unknown at the time for "club houses" in American colleges and universities: 250 feet long and 200 feet wide. Construction began in 1916 and owing to war time difficulties was not ready to be used by students until 1919. Two new wings to the south were completed in 1936 and 1938. The first wing runs parallel to the main structure while the other fronts on Madison Street. View of the construction site from the southwest.

Michigan Union addition, 1936-1937

Irving Kane and Allen B. Pond, architects. Plans for the Union were on a scale unknown at the time for "club houses" in American colleges and universities: 250 feet long and 200 feet wide. Construction began in 1916 and owing to war time difficulties was not ready to be used by students until 1919. Two new wings to the south were completed in 1936 and 1938. The first wing runs parallel to the main structure while the other fronts on Madison Street. View of the construction site from the southwest.