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  • grab sampling  (1)
  • pupal exuviae  (1)
Document type
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Temporal and spatial distribution of chironomid larvae and oligochaetes in two Dutch storage reservoirs (1992)
    Springer
    Aquatic ecology 26 (1992), S. 361-369 
    Details
    ISSN: 1573-5125
    Keywords: Chironomidae ; Oligochaeta ; Procladius ; Tanytarsus ; Harnischia ; storage reservoir ; pupal exuviae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Long-term changes in distribution and taxonomic composition of chironomid larvae and oligochaetes in two water storage reservoirs in The Netherlands were studied. A succession among the chironomid species was observed. In the last 10–15 years chironomid densities varied. Compared with other lakes chironomid densities were high. Densities of chironomids were higher in the littoral zone than in the profundal zone. The opposite was found for oligochaetes. Densities and composition of the chironomid fauna in the two reservoirs were similar.Procladius, Tanytarsus andHarnischia dominated at all depths. However, pupal exuviae samples showed some differences in chironomid taxonomic composition between the two reservoirs. Orthocladiinae, rarely found in bottom samples, abounded in pupal exuviae samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02255263
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Chironomid pupal exuviae and larvae of two storage reservoirs in The Netherlands (1992)
    Springer
    Aquatic ecology 26 (1992), S. 379-383 
    Details
    ISSN: 1573-5125
    Keywords: Chironomidae ; storage reservoir ; pupal uxuviae ; grab sampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract For three years chironomid larvae were collected bimonthly with a grab sampler in two deep storage reservoirs in The Netherlands. Chironomid pupal exuviae were collected monthly, from April to November, with a handnet. Net samples yielded more taxa than grab samples. The taxa found in net samples originated from more habitats, than taxa found in grab samples. The relative contribution of Orthocladiinae was much larger in net samples. Based on the results obtained in the two reservoirs, some advantages and disadvantages of both sampling methods are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02255265
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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