Erstnachweis vonPolycheles typhlops (Decapoda reptantia) für isländische Gewässer
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منابع مشابه
Schadstoffeinleitungen in Kanäle und Gewässer verfolgen
Zusammenfassung: Seit Jahren wird in Bielefeld die Untersuchung von Biofilm (Sielhaut) in Schmutzwasserkanälen zur regionalen Eingrenzung von Schadstoffeinleitungen erfolgreich eingesetzt. Die Methode findet eine breitere Anwendung, seitdem in Bielefeld die Probenahme entscheidend vereinfacht werden konnte. In einer Versuchsreihe soll nun geklärt werden, unter welchen Bedingungen sie auch in Ob...
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Preliminary observations indicated that the shrimp Crangon crangon (L.) appeared to be affected by the level of the ambient noise expressed as sound pressure. The significance of ~ t s metabolic response was studied by comparing its ammonia excretion rate under usual laboratory conditions E (= +25 dB pbar-l) to its rate under sound-proof conditions C (= -4 dB pbar-l). The relationship between t...
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Molecular methods are playing an increasingly important role in reconstructing phylogenetic relationships. Regardless of what source of DNA is used, the simple idea behind it is that the genetic distance (distinctness of DNA sequences) between any two taxa should be proportional to the time of their separation. Genetic markers with different degrees of variability appear appropriate for differe...
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ژورنال
عنوان ژورنال: Helgoländer Wissenschaftliche Meeresuntersuchungen
سال: 1966
ISSN: 0017-9957,1438-3888
DOI: 10.1007/bf01611954