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Acute effects on perch ( Perca fluviatilis ) and long‐term effects on whitefish ( Coregonus lavaretus pallasi ) of liming of an acidified lake

Acute effects on perch ( Perca fluviatilis ) and long‐term effects on whitefish ( Coregonus... Summary The acute effects on perch and long‐term effects on whitefish were studied after liming one side of a lake (initial pH: 4.6–5.5; aluminium (Al): 29–54 μg L−1; Ca2+: 0.02–0.07 mmol L−1) that was divided into two parts with a plastic curtain. Some Al precipitation was observed on the gill surface of perch 1 day after liming; the concentration of plasma sodium of perch females in the limed side was also higher than in the acidic side. Nearly 6 months after liming, at the spawning time of whitefish, the plasma chloride concentration of whitefish in the limed side was higher and blood glucose concentration lower than in the acidic side. Four of five whitefish males from the limed side, but only one of five males and none of the five females from the acidic side, were ready to spawn. The growth of whitefish in the limed side was also more rapid. These changes illustrate that liming had no acute harmful effects on perch, and allowed whitefish to recover from acidity‐related physiological stress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Acute effects on perch ( Perca fluviatilis ) and long‐term effects on whitefish ( Coregonus lavaretus pallasi ) of liming of an acidified lake

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References (52)

Publisher
Wiley
Copyright
Copyright © 2004 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0175-8659
eISSN
1439-0426
DOI
10.1111/j.1439-0426.2004.00551.x
Publisher site
See Article on Publisher Site

Abstract

Summary The acute effects on perch and long‐term effects on whitefish were studied after liming one side of a lake (initial pH: 4.6–5.5; aluminium (Al): 29–54 μg L−1; Ca2+: 0.02–0.07 mmol L−1) that was divided into two parts with a plastic curtain. Some Al precipitation was observed on the gill surface of perch 1 day after liming; the concentration of plasma sodium of perch females in the limed side was also higher than in the acidic side. Nearly 6 months after liming, at the spawning time of whitefish, the plasma chloride concentration of whitefish in the limed side was higher and blood glucose concentration lower than in the acidic side. Four of five whitefish males from the limed side, but only one of five males and none of the five females from the acidic side, were ready to spawn. The growth of whitefish in the limed side was also more rapid. These changes illustrate that liming had no acute harmful effects on perch, and allowed whitefish to recover from acidity‐related physiological stress.

Journal

Journal of Applied Ichthyology – Wiley

Published: Jun 1, 2004

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