Challenges in assessing biological recovery from acidification in Swedish lakes

Bibliographic Data

ID10888182
AuthorsKerstin Holmgren (0000-0002-0164-8883, Swedish University of Agricultural Sciences, corresponding author)
Year2014
Volume43
IssueS1
Pages19-29
Publication date2014-12-01
Open AccessYes
TypeARTICLE
VenueAMBIO (JOURNAL)
Journal identifiersISSN: 0044-7447 • E-ISSN: 1654-7209
PublisherSpringer Science and Business Media LLC (PUBLISHER)
DOI10.1007/s13280-014-0559-y
PMID25403967
PMCIDPMC4235930
OpenAlexW1984909809
LanguageEN
Citations received1
References cited49

Since the 1980s, Swedish lakes have in general become less acidified. Assessment of biological recovery is, however, hampered by poor pre-acidification data, confounding effects of climate change, and few lakes with annual sampling of fish and other organisms. Only three critically acidified, but non-limed, lakes had two decades of fish monitoring. The lakes had not yet recovered to pre-industrial chemical targets. Fish had low species richness compared to other organism groups. Roach (Rutilus rutilus) and/or European perch (Perca fluviatilis) were the dominant fish species, and the acid-sensitive roach had been lost from one of the lakes. Calcium decreased, possibly approaching pre-acidification concentrations, but exceeded minimum levels needed to sustain some Daphnia species. High or increasing levels of total organic carbon, likely due to reduced acidification and climate change, might influence the biological communities in unexpected ways, for example, facilitating more frequent occurrence of the invasive algae Gonyostomum semen

Biology · Daphnia · Fish · Fish <Actinopterygii> · Fishery · Organism · Perch · Rutilus · Species richness · Zooplankton · Aquatic Invertebrate Ecology and Behavior · Ecology · Environmental Science · Environmental Toxicology and Ecotoxicology · Fish Ecology and Management Studies

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