Vertical distribution of benthic macroinvertebrates in a meromictic lake (Lake Czarne, Drawieński National Park)

• Autorzy: Klimaszyk P. , Heymann D.
• Języki publikacji: EN

Abstrakty

EN

Investigations of the distribution of benthic macroinvertebrates in Lake Czarne were conducted in fall 2005 and spring 2006. Samples were taken in three transects (at a depth of 0.5 m and at 5 m intervals). It was noted that macrobenthos only inhabit depths to 10 m. Laminar sediments from 15 m to 29 m indicate that macrobenthos never inhabit the deepest part of the lake in spite of temporary oxygen abundance (between 15 and 20 m during the winter and spring mixing periods). The largest diversity and biomass of macrozoobenthos was observed in the littoral zone at a depth of 0.5 m. At a depth of 5 m in the characean stands and at a depth of 10 m the number and biomass of benthic macroinvertebrates were significantly smaller. The reason for the decrease of benthos density seems to be gradual oxygen depletion.

Słowa kluczowe

EN

benthic macroinvertebrates; meromictic lake; oxygen depletion

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological and Hydrobiological Studies
• Rocznik: 2010
• Tom: Vol. 39, No.4
• Strony: 99--106
• Opis fizyczny: Bibliogr. 18 poz., tab., wykr.

Twórcy

autor

Klimaszyk P.

autor

Heymann D.

• 1Department of Water Protection, University of Adam Mickiewicz ul. Umultowka 89, 61–614 Poznań, Poland,

Bibliografia

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