(Table1) Living and Dead Benthic Foraminifera Abundance in Sediments of the Bottsand-Lagoon, Western Baltic Sea, Supplementary Data To: Lutze, Gerhard F (1968): Jahresgang Der Foraminiferen-Fauna in Der Bottsand-Lagune (westliche Ostsee). Meyniana, 18, 13-30 PDF Download
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Author: Gerhard Friedrich Lutze Publisher: ISBN: Category : Languages : en Pages :
Book Description
Seasonal collections were made from 3 stations in a brackish lagoon near Kiel/Germany from December 1964 to June 1967. In addition 120 samples were taken in June 1966 to investigate the general pattern of distribution. Two species of the offshore fauna were found to dominate the lagoon (high population densities): Cribrononion articulatum and Miliammina fusca. The 'Vegetation zone' of the lagoon contains an assemblage of seven euryhaline arenaceous species. All of them were previously recorded from different regions of the world. - C. articulatum seems to prefer shallow water with a high daily range of water temperature (up to 30° Cels.). Population density and distribution show considerable differences between the different years. Size distribution curves of C. articulatum indicate main reproduction activity in spring and subsequent growth in uniform populations. Growth is terminated after six months but most of the specimens will either die in winter or reproduce the next spring; only a smaller amount is reproducing in summer or autumn. - Annual differences of the observed degree make it difficult to calculate foraminiferal productivity in a lagoonal environment and require seasonal observation over a period of at least 3 or 4 years.
Author: Gerhard Friedrich Lutze Publisher: ISBN: Category : Languages : en Pages :
Book Description
Seasonal collections were made from 3 stations in a brackish lagoon near Kiel/Germany from December 1964 to June 1967. In addition 120 samples were taken in June 1966 to investigate the general pattern of distribution. Two species of the offshore fauna were found to dominate the lagoon (high population densities): Cribrononion articulatum and Miliammina fusca. The 'Vegetation zone' of the lagoon contains an assemblage of seven euryhaline arenaceous species. All of them were previously recorded from different regions of the world. - C. articulatum seems to prefer shallow water with a high daily range of water temperature (up to 30° Cels.). Population density and distribution show considerable differences between the different years. Size distribution curves of C. articulatum indicate main reproduction activity in spring and subsequent growth in uniform populations. Growth is terminated after six months but most of the specimens will either die in winter or reproduce the next spring; only a smaller amount is reproducing in summer or autumn. - Annual differences of the observed degree make it difficult to calculate foraminiferal productivity in a lagoonal environment and require seasonal observation over a period of at least 3 or 4 years.
Author: Gerhard Friedrich Lutze Publisher: ISBN: Category : Languages : en Pages :
Book Description
The benthic foraminiferal populations along three traverses across the Northwest African continental margin were analyzed on the base of ca. 60 surface sediment samples. Depth ranges of 213 species were established and the main trends of vertical distribution are compared with those known from adjacent regions. Main faunal breaks occure at 100/200 m and 1000/1500 m depth of water. Some species show latitudinal distribution boundaries and the same applies to population density (standing stock), reflecting the regional distribution of nutrients supply by river discharge and upwelling processes. - High proportions of Bolivina test at the lower slope indicate extended downslope transport.
Author: Ann Holbourn Publisher: Wiley-Blackwell ISBN: 9781405103039 Category : Science Languages : en Pages : 100
Book Description
Benthic foraminifera have played a central role in deep-sea biostratigraphic, paleoecological, and paleoceanographical research over the last thirty years. These single-celled marine protists are important because of their geographic ubiquity, their abundance and diversity in Cretaceous to Recent deep-sea sediments, because of the relationship between occurrence of many modern species and particular water masses, and because of their utility as indicators of environmental conditions both at and below the sediment-water interface. In addition, stable isotopes obtained from deep-sea benthic foraminiferal tests provide paleoceanographers with environmental information that is proving to be of major significance in studies of global climatic change. PaleoBase: Deep-Sea Benthic Foraminifera presents the latest taxonomic revision for 300 species in the form of an illustrated, state-of-the-art relational database. Relying primarily on material collected by the Deep-Sea Drilling Project (DSDP) and Ocean Drilling Programme (ODP) for examples of characteristic deep-sea species, and containing over 1,000 colour, digital composite illustrations of unprecendented accuracy, this database represents a significant step forward in the presentation of systematic information in general, and microfossil systematics in particular. For this first time, consistent and reliable information for each species morphology, taxonomy, synonymy, bathymetery, paleoecology, chronostratigraphy, biostratigraphy is summarized in one place and in a searchable format. In addition, the database contains a morphological key for each species and citations to over 350 references from the primary scientific literature. PaleoBase: Deep-Sea Benthic Foraminifera provides earth scientists effectively instant access to all the information necessary to make accurate biostratigraphic, palaeoceanographical and palaeoecological interpretations based on benthic foraminiferal data in a structured, easy-to-use manner. The database will be invaluable to professional micropaleontologists, researchers, and students of micropalaeontology. Approximately 350 foram genera. 1000 stunning high resolution images, including SEMs. Fully searchable data on ecology, range, synonomy, biogeography etc. Full references.
Author: Gerhard Friedrich Lutze
Author: Gerhard Friedrich Lutze
Author: Gerhard Friedrich Lutze
Author: Ann Holbourn
Author: Irina Polovodova
Author: Irina Polovodova