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  • Springer  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Zooplankton community respiration during the JGOFS pilot study (1992)
    Springer
    Helgoland marine research 46 (1992), S. 117-135 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract From March to July 1989 (JGOFS pilot study), measurements were carried out on the oxygen uptake of natural zooplankton communities on five drifting stations (about three weeks each) in the Atlantic from 18°N to 72°N after a method of Martens (1986). The weight specific respiration rate decreased from south to north parallel to the water temperature, whereas the amount of mesozooplankton increased. No significant differences in the oxygen uptake of the zooplankton community between the five stations could be found. A rough estimate showed that less than 2% of the phytoplankton carbon was assimilated by the mesozooplankton per day. This is thought to reflect a typical spring situation. The weight specific respiration rate is influenced significantly by the water temperature and the mean length of the zooplankter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02366051
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The fate of faecal pellets in the North Sea (1990)
    Springer
    Helgoland marine research 44 (1990), S. 9-19 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract During an intensive survey in May/June 1986, 129 stations in the North Sea were examined in different water depths with respect to several hydrographical parameters. The relations of planktonic faecal pellets to food (chl-a) and producers (zooplankton-wet weight) as well as to temperature, salinity and water depth were investigated. The amount of faecal pellets was positively correlated with chl-a and zooplankton. The length of the faecal pellets was negatively correlated with water depth indicating a degradation during sinking. Hardly any formed faecal material was detectable under 100 m water depth. The ratio of pellets to zooplankton was positively correlated to chlorophyll and influenced by daytime, indicating diel variations in pellet production. It is assumed that in summer most of the planktonic faecal material is disintegrated in the upper water layer and the role of faeces in sedimentation is minor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02365427
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    On trends in nutrient concentration in the northern Wadden Sea of Sylt (1989)
    Springer
    Helgoland marine research 43 (1989), S. 489-499 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The mean values on hydrographical parameters in the Wadden Sea of Sylt taken weekly over a period of seven years (1975, 1976 and 1984 to 1988) were compared in order to detect trends in concentrations of nutrients or plankton. An increase in NO2, NO3, PO4 and Si could be found in summer. NH4 showed a negative trend. Corresponding with the rising nutrient-level, Chlorophyll-a and pH show a positive trend. Salinity decreased significantly. Changes in NH4 and NO2 were correlated with rainfall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02365906
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Inorganic phytoplankton nutrients in the Wadden Sea areas off Schleswig-Holstein. II. Dissolved ortho-phosphate and reactive silicate with comments on the zooplankton (1992)
    Springer
    Helgoland marine research 46 (1992), S. 103-115 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In the summer months of 1984, 1986, 1987 and 1988, several stations off the west coast of Schleswig-Holstein were investigated with regard to the situation of ortho-phosphate, reactive silicate and mesozooplankton. An increase in phosphate was observed, whereas an increase in silicate could only be found in the areas influenced by the River Eider. Polychaete larvae show a decreasing tendency in the summer months; this is thought to be influenced by water temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02366050
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Sickness in spoon river: Village health at the turn of the century (1995)
    Springer
    The journal of medical humanities 16 (1995), S. 5-21 
    Details
    ISSN: 1573-3645
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Edgar Lee Masters published numerous poems, plays, and novels between 1900 and 1942; most go unread, with the exception ofSpoon River Anthology, which is among the most popular works of American poetry of the twentieth century. This collection of poems tells of the lives of the inhabitants of a fictional American town—Spoon River, Illinois. Many of the poems consider sickness and health in the community, and the insight they offer into human responses to illness continues to be relevant today, contributing not only to the lasting popularity ofSpoon River Anthology, but also the literary value of the work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02276817
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    Paper (German National Licenses)
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