Global Change: Oekologie groenlaendischer und sibirischer Schelfgebiete Abschlussbericht

This work aimed to study the distribution and structure of pelagic and benthal biocoenoses in two areas, the continental shelf of eastern Greenland and the northern Barents Sea, and to compare them in relation to their ecological boundary conditions. Furthermore, aspects of ontogenetic and ecophysiological adaptations of key species were investigated. The programme followed a fourfold approach: 1) Inventory of fauna, 2) analysis of the distribution and composition of communities, 3) autecological studies of selected key species, 4) description of associations between community structures, autecological adaptations, and special environmental conditions. In this way an inventory of pelagic and benthal biocoenoses in the two areas of investigation was prepared also with a view to further studies. Different modern sampling and data acquisition methods were used to ensure covering a broad spectrum of forms and sizes of fauna. (orig./KW)In zwei verschiedenen Untersuchungsgebieten, (1) dem ostgroenlaendischen Kontinentalrand und (2) dem noerdlichen Barentsmeer sollte die Verbreitung und Struktur von pelagischen und benthischen Lebensgemeinschaften erfasst und in Beziehung zu den oekologischen Rahmenbedingungen vergleichend beschrieben werden. Ausserdem sollten Aspekte ontogenetischer und oekophysiologischer Adaptationen von Schluesselarten untersucht werden. Das Untersuchungskonzept folgte dabei einem vierstufigen Ansatz: 1) Faunistische Bestandsaufnahme, 2) Analyse der Verteilung und Zusammensetzung von Gemeinschaften, 3) autoekologische Studien an ausgewaehlten Schluesselarten, 4) Beschreibung der Beziehungen zwischen Gemeinschaftsstrukturen, autoekologischen Adaptationen und speziellen Umweltbedingungen. Erstes Ziel und Grundlage weiterfuehrender Untersuchungen war eine Bestandsaufnahme der pelagischen und benthischen Lebensgemeinschaften in den beiden Untersuchungsgebieten, wobei durch den Einsatz verschiedener moderner Methoden der Proben- und Datengewinnung ein breites Lebensformen- und Groessenspektrum der Fauna erfasst werden sollte. (orig./KW)SIGLEAvailable from TIB Hannover: F94B0204 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

AOSGE: the Arctic Ocean System in the Global Environment Final report

SIGLEAvailable from TIB Hannover: DtF QN1(80,16) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman

Russisch-Deutsche Zusammenarbeit: System Laptev-See 2000 - Synthesephase Abschlussbericht

Available from TIB Hannover: F04B1555 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman

Blutphysiologie und oekologische Konsequenzen von Fischen des Weddellmeeres (Antarktis)

Available from TIB Hannover: RN9219(91) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Regional and seasonal variability in the vertical distribution of mesozooplankton in the Greenland Sea

A large-scale regional and seasonal zooplankton investigation was carried out in the Greenland Sea covering the entire water column down to 3000 m depth. It focussed on the composition and vertical distribution of zooplankton in relation to the hydrographic regime (i) and in course of time (ii). Sampling was carried out with vertical Multinet hauls (150 #mu#m mesh) in nine depth strata: 3000 (or sea floor)-2000-1500-1000-500-400-300-200-100-0 m. (i) The regional study comprised a transect along 75 N in November 1988, occupying one station in the Atlantic domain of the West Spitsbergen Current (WSC) and three stations in the arctic domain of the Greenland Sea Gyre (GSG). The WSC station showed a low number of individuals and species and a relatively even distribution of individuals among species. Calanus finmarchicus (Calanoida, Copepoda) dominated in abundance (40%) and biomass (55%). Within the GSG, Oithona (Cyclopoida, Copepoda) was numerically dominant (38%-58%) and Calanus hyperboreus in terms of biomass (35%). Biomass varied only little along the transect (13#+-#1 g DW x m"-"2). Highest numbers of individuals were found in the upper 500 m, while a large fraction of the biomass was located below. (ii) The seasonal study encompassed six stations in the GSG, revisited in late fall, winter, early and late summer of 1988/89 and spring of 1993. Species composition remained fairly constant throughout the investigation period, around 48 species, with Oithona dominating in abundance (53%) and C. hyperboreus in biomass (32%). Integrated abundance varied by a factor of 2.5, with maximum values in June (7.4 x 10"5 n x m"-"2). Integrated biomass was high (14 g DW m"-"2) and remarakably constant, varying by a factor of 1.5 between the winter minimum and the late summer maximum. Abundance was maximal at the surface throughout the light season, whereas the biomass maximum occurred only briefly at the surface in early summer and prevailed in the subsurface for most of the year. (orig.)Printed version of a thesis submitted to and accepted by the Faculty of Mathematics and Natural Sciences of the University of KielAvailable from TIB Hannover: RN 9219(154) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Zur Oekologie der Benthos-Foraminiferen der Potter Cove (King George Island, Antarktis)

SIGLEAvailable from TIB Hannover: RN 9219(353) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Patterns and controls of CO_2 fluxes in wet tundra types of the Taimyr Peninsula, Siberia - the contribution of soils and mosses. Muster und Steuerung von CO_2-Fluessen in nassen Tundraformen der Taimyr Halbinsel, Sibirien - der Beitrag von Boeden und Moosen

Summary in GermanSIGLEAvailable from TIB Hannover: RN 9219(298) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Zur sommerlichen Verteilung des Mesozooplanktons im Nansen-Becken, Nordpolarmeer

SIGLEAvailable from TIB Hannover: RN9219(92) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Besiedlungsmuster der benthischen Makrofauna auf dem ostgroenlaendischen Kontinentalhang

Summary in EnglishSIGLEAvailable from TIB Hannover: RN 9219(294) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Zur Lebensgeschichte dominanter Copepodenarten (Calanus finmarchicus, C. glacialis, C. hyperboreus, Metridia longa) in der Framstrasse

Available from TIB Hannover: RN9219(88) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman