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The Life History and Occurrence of Sialis lutaria L. (Megaloptera) in the Littoral Zone of Lake Esrom, Denmark

✍ Scribed by Dr. Peter C. Dall


Book ID
102869769
Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
521 KB
Volume
74
Category
Article
ISSN
1434-2944

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✦ Synopsis


The lift! history arid distribution of SiuZis Zutaricc L. in the exposed littoral zone of Lake Esroni, Denmark were examined dnring 1979/80. Sinlis showed an annual life cycle with mean annual abundance of 20 and 40 ind m-2 a t 0.4 and 2.0 m depth, respectively. Growth peaked during July wit'h rates of about 10 yi, d-l. Nct annual procluct'ion averaged 0.2 g DW a t 0.4 m depth and 0.8 g DW at 2.0 m depth. The annual P/B-ratios were est)imated in the range of 4.6-7.1.


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