ISSN:
1573-5133
Schlagwort(e):
Acidic deposition
;
Snowmelt runoff
;
Stream pH depressions
;
Early life history
;
Salmonid fish
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Synopsis The emergence chronology of brook charr alevins in the Chikanishing River, Ontario, Canada and the concurrent changes in stream chemistry resulting from acidic snowmelt runoff were examined during the spring, 1986–1988. Emergence patterns were similar among years with the most intense emergence (〉 70%) occurring during the declining stream discharge following the spring flood. This period coincided with stream pH depressions (minimum pH 5.2) in 2 of 3 years, suggesting emergence behaviour frequently subjects the earliest free-swimming life interval of brook charr to episodic acidification events.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00002155
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