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  • 1980-1984  (9)
  • 1
    Electronic Resource
    Electronic Resource
    Benthic response to sedimentation events during autumn to spring at a shallow-water station in the Western Kiel Bight (1983)
    Springer
    Marine biology 77 (1983), S. 235-246 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The response of the benthos to the break up of anoxia in the Kiel Bight (Western Baltic Sea), and to three succeeding events of “external” food supply, consisting of a settled autumn plankton bloom, resuspended matter and macrophyte input during winter, and of a sedimented spring phytoplankton bloom, is described on a community level. The first input of oxygen broke up anoxic conditions and made stored food resources available to decomposition. This “internal” food supply, mainly consisting of protein (folin positive matter), was followed by a drastic increase in heat production and ATP-biomass and caused a period of low redox potential, which lasted for several weeks. During this phase, a plankton bloom (dinoflagellates and diatoms) settled to the sea floor. Although there was an immediate response of benthic activity, this food input was not completely consumed by the strongly disturbed benthic community. During winter resuspended matter and the input of macrophyte debris caused another maximum in benthic activity and biomass despite the low temperature. The response to sedimentation of cells from a diatom bloom during mid March was also without any time lag and was consumed within 5–6 wk. A comparison of the amount of particles collected in a sediment trap with the increase of organic matter in the sediment demonstrated that the sediment collected four times (autumn) and seven to eight times (spring) more than measured by the sediment trap. Strong indications of food limitation of benthic activity were found. During autumn and winter these indications were caused more by physical than by biological processes. The three events of “external” food supply caused a temporary shift in the type of metabolism towards fermentation processes and reduced the redox potential. In spring the development of the benthic community was still being strongly influenced by the events of the preceding summer and autumn.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395812
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  • 2
    Electronic Resource
    Electronic Resource
    Benthic response to sedimentation of a spring phytoplankton bloom: Process and budget (1982)
    Springer
    Marine biology 67 (1982), S. 201-208 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The response of benthos to sedimentation of the spring phytoplankton bloom in the Kiel Bight (Western Baltic Sea) is described in terms of biomass (ATP) and activity (heat production and ETS-activity). Input of the bloom (11.5 g C m-2) over a period from March 25 to April 19, 1980 to the sediment surface was in the form of cells and fresh phytodetritus as indicated by low C/N ratios (≦7) and high energy charge values (0.78). Benthic microbial activity was immediately stimulated by this input as heat production doubled and the activity of ETS tripled over winter values within 12 d in the absence of a significant increase in ambient temperature. A comparison of the two activity parameters suggests that anaerobic metabolism is more important during the winter (February and March) than after input of the bloom. Meiofauna was not able to take part in the first activity outburst. Benthic ATP-biomass (excluding macrofauna) doubled in late April due to microbial production, and doubled again in early May when meiofauna started reproductive activity. For macrofauna a general statement was not possible, although the sediment surface feeder Macoma baltica commenced a build up of glycogen and lipid resources immediately following bloom input whereas Nephtys ciliata, feeding on sediment and small macrofauna, showed a less pronounced and delayed effect from this input. An energy budget based on heat production measurements was calculated. A daily heat loss of the benthic community of 21.7 KJ m-2 d-1 (35.5 KJ m-2 d-1) was found, when a depth of 3 cm sediment (5 cm) was assumed. Heat production of macrofauna contributed less than 5% of this activity. The input of the bloom was “burned” within 21 (13) d. Preliminary estimations for an annual budget suggest that the vertical transport of particulate organic matter via sedimentation can only explain 25% (15%) of the benthic activity in the shallow water ecosystem of the Kiel Bight. This indicates the presence of other sources of organic carbon such as benthic primary production or other transport processes providing carbon to the sediments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401286
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  • 3
    Electronic Resource
    Electronic Resource
    RESISTIVITY PROFILING WITH DIFFERENT ELECTRODE ARRAYS OVER A GRAPHITE DEPOSIT (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 29 (1981), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Motivated by several papers by Indian colleagues suggesting that a single-pole array is the most favorable one for locating electrically conductive targets in the underground, detailed measurements were carried out with different electrode arrays over a well-known graphite deposit near Pfaffenreuth, Germany. The following arrays were used: (1) Wenner array; (2) single-pole array; (3) half-Wenner array; (4) half-Schlumberger array. Each of the arrays established the location of the main graphite deposit. The half-Schlumberger array turned out to be the most reliable one since it showed details which were only very poorly indicated by the other arrays or not at all.Mathematical modeling of three-dimensional bodies simulating the geological situation for this deposit were carried out. These results show an unexpectedly good correlation with the measured effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1981.tb00697.x
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  • 4
    Electronic Resource
    Electronic Resource
    REPLY TO COMMENTS BY A. ROY (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 30 (1982), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1982.tb01351.x
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  • 5
    Electronic Resource
    Electronic Resource
    Synthese und Eigenschaften einiger höhergliedriger cyclischer Atheracetale (1980)
    Springer
    Colloid & polymer science 258 (1980), S. 204-204 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01498297
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  • 6
    Electronic Resource
    Electronic Resource
    Book reviews (1984)
    Springer
    Colloid & polymer science 262 (1984), S. 671-676 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01452462
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Book reviews (1984)
    Springer
    Colloid & polymer science 262 (1984), S. 834-836 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01451717
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  • 8
    Electronic Resource
    Electronic Resource
    Die Chromosomen des Auerhahnes (Tetrao urogallus L.) (1982)
    Springer
    European journal of wildlife research 28 (1982), S. 255-259 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary This is a report on the diploid set of chromosomes in the capercaillie. The capercaillie has 18 macrochromosomes: 2 of these are sex chromosomes, and an as yet uncertain number of micro-chromosomes. It is unfortunately unpossible at the moment to gather information for necessary population cytogenetic investigations, since the species has practically died out in Germany.
    Abstract: Résumé Le jeu diploïde des chromosomes de l'Urogalle est constitué de 18 grands chromosomes dont 2 sont des chromosomes sexuels et d'un nombre encore indéterminé de micro-chromosomes. La disponibilité de matériel nécessaire aux recherches sur la cytogénétique de populations de l'Urogalle est actuellement compromise en raison de la quasi-extinction de l'espèce en Allemagne.
    Notes: Zusammenfassung Es wird über den diploiden Chromosomensatz des Auerhahnes berichtet. Der Auerhahn besitzt 18 Makrochromosomen, 2 davon sind Geschlechtschromosomen, und eine noch nicht sicher bekannte Anzahl von Mikrochromosomen. Die Materialbeschaffung für notwendige populationszytogenetische Untersuchungen ist z. Z. leider nicht möglich, da die Art in Deutschland fast ausgestorben ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02241480
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  • 9
    Electronic Resource
    Electronic Resource
    Charakterisierung und Differenzierung von Opiatreceptoren (1982)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 311 (1982), S. 341-342 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00481704
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