Hohenheim, Univ., Diss., 2002. / Dateien im PDF-Format. Computerdatei im Fernzugriff.

Hohenheim, University, Diss., 2002. / Dateien im PDF-Format.

Bremen, Univ., Diss., 2005. / Erscheinungsjahr an der Haupttitelstelle: 2004. - Enth. 4 Sonderabdr. aus verschiedenen Zeitschr. Computerdatei im Fernzugriff.

60 leaves, 7 leaves of plates : ill. ; 28 cm Thesis (M.A.)--University of Oregon, 1943 Bibliography: leaves [51]-53

The Hout Bay Valley, surrounded by mountains and the Atlantic Ocean, is a unique ecological entity operating within the wider Metropolitan context of Cape Town. Sited as it is on the fringe of the expanding urban periphery of Cape Town, it is a beautiful legacy, a serious responsibility, an area of challenge and opportunity, and an area threatened by an uncontrolled residential expansion and concomitant sub-division and exploitation of farmlands for ancillary urban related facilities, which factor is eroding, and threatening to destroy, the rustic environmental qualities of the Valley by an industrial expansion in the harbour enclave which could disturb the delicate balance within the Valley.

No description available.

Historical environmental changes in two shallow, unstratified, estuaries in Buzzards Bay, Massachusetts are compared, using three diatom paleo-production indicators: sedimentary biogenic silica (BSi), BSi flux and ratio of Centric to Penate diatoms. Both estuaries were exposed to pollution. New Bedford Harbor (NBH) has a history of intensive nutrient loading and industrial pollution, while the control site, Apponagansett Bay, has lower levels of nutrient loading. Consideration of local precipitation history and diatom parameters suggests that salinity-driven changes in diatom production are negligible. Over the past ∼350 yrs, BSi concentrations and fluxes are higher in NBH. Thus, overall diatom production is sensitive to nutrient enrichment and less responsive to industrial pollutants. The relationship between the C/P ratio and environmental conditions is not as clear, possibly due to its dependence on eelgrass abundance. The uniqueness of this study lies in its use of the parameters combined, as well as its geographic setting.

No description available.

Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 60-63). Description: xii, 63 leaves ; 29 cm.

The present study, planned as a quantitative investigation of the phytoplankton of Kaneohe Bay, Hawaii, over a period of one year, was undertaken to supplement present knowledge of seasonal, distributional, floristic, and ecological features of the phytoplankton in Kaneohe Bay. The objectives of this study were: 1. To identify and enumerate phytoplankton collected at selected stations at re~ular intervals over a period of one year 2. To attempt to determine the factors that control variations in the qualitative and quantitative makeup of the phytoplankton 3. To relate the quantitative data obtained in this study with other ecological data obtained by other investigators in a concurrent study. / Typescript. Thesis (M. S.)--University of Hawaii at Manoa, 1972. Bibliography: leaves [106]-109.