✦ LIBER ✦

Overwintering of Invertebrates in a Shallow Northern Swedish Lake

✍ Scribed by Dr. Kjell Danell

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 473 KB
Volume: 66
Category: Article
ISSN: 1434-2944
DOI: 10.1002/iroh.19810660606

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✦ Synopsis

Abstract

During two winters, the benthic invertebrates in a shallow northern Swedish lake (66 °N) were studied. The lake is ice‐covered for about 200 days a year. Live Lamellibranchiata, Oligochaeta. Hydracarina, Isopoda, Heteroptera, Cole optera and Diptera were found in samples of ice and of frozen lake‐bottom sediments. During the winter in which the bottom froze deepest, a 70–90% decrease in numbers of live Chironomidae larvae was recorded between the autumn and following early spring.

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