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Titolo:
Toxicity of acidic post-mining lake water to early life stages of tench, Tinca tinca (Cyprinidae)
Autore:
Duis, K;
Indirizzi:
ECT Okotoxicol GmbH, D-65439 Florsheim, Main, Germany ECT Okotoxicol GmbHFlorsheim Main Germany D-65439 orsheim, Main, Germany
Titolo Testata:
WATER AIR AND SOIL POLLUTION
fascicolo: 3-4, volume: 132, anno: 2001,
pagine: 373 - 388
SICI:
0049-6979(200112)132:3-4<373:TOAPLW>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALMON SALMO-SALAR; TROUT ONCORHYNCHUS-MYKISS; MINE DRAINAGE; RAINBOW-TROUT; LOW PH; SALVELINUS-FONTINALIS; ENERGY-METABOLISM; UNITED-STATES; BROOK TROUT; ALUMINUM;
Keywords:
acid tolerance; early life stages; impaired feeding; post-mining lakes; static-renewal procedure; Tinca tinca;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
70
Recensione:
Indirizzi per estratti:
Indirizzo: Duis, K ECT Okotoxicol GmbH, Bottgerstr 2-14, D-65439 Florsheim, Main, Germany ECT Okotoxicol GmbH Bottgerstr 2-14 Florsheim Main Germany D-65439
Citazione:
K. Duis, "Toxicity of acidic post-mining lake water to early life stages of tench, Tinca tinca (Cyprinidae)", WATER A S P, 132(3-4), 2001, pp. 373-388

Abstract

Following abandonment of lignite mines, many acidic hardwater lakes have formed in eastern Germany. Even after neutralisation, a risk of reacidification remains. In view of plans to use the post-mining lakes for fisheries, acid tolerance of early life stages of tench, Tinca tinca, was determined using reconstituted post-mining lake water. Two experimental series were compared: A) incubation of the embryonic stages in Petri dishes and transfer ofthe larvae to aquaria, and B) incubation in aquaria throughout the experiment. All tench embryos exposed to pH 3.50-4.75 died prior to hatch. At pH 5.00, no (series B) or very few embryos (series A) hatched. The latter died shortly after hatching. At pH 5.50, the latching percentage in series A didnot differ significantly from that in the pH 7.40 control, whereas that inseries B was reduced to half of the control value. Transition to exogenousfending was impaired in both series and mortality gradually increased. Consequently, overall survival at pH 5.50 only amounted to 4% in series A and 3% in series B. Reacidification to pH less than or equal to 5.50 would, thus, most probably pose a threat to early life stages of tench.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 11:41:25