Nom du corpus

Corpus Systématique Animale

Titre du document

The decline of fauna in small streams in the Swedish mountain range

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • acidification
  • acid episodes
  • critical load
  • mountain
  • streams
  • benthic fauna
  • fish
Nom du fichier dans la ressource
Poissons_v2b_003871
Auteur(s)
  • Erik Olofsson 1
  • Elisabeth Melin 1
  • Erik Degerman 2
Affiliation(s)
  • 1) Municipality of Härjedalen, Medborgarhuset, 84280 Sveg, Sweden
  • 2) National Board of Fisheries, Inst. freshw. res., 17893, Drottningholm, Sweden
Résumé

Investigations in the southern part of the Scandinavian mountain range have shown a direct correlation between snowpack pH and the lowest pH in small streams. In streams with catchments <100 km2 a snowpack pH below 4.8 resulted in a stream pH below 5.5. As the snowpack pH in the southern mountain range is 4.0–4.6, lower values to the south and at high altitudes, large areas are affected by acid deposition. The acidity of the snowpack is released almost directly into the streams during thaw, due to the large snowpack, rapid thaw, steep terrain and thin soils. The acidification of the snow has lead to an extensive fauna depletion, especially in smaller streams without upstream lakes. The abundance of benthos in acidified streams in the municipality of Härjedalen (11.000 km2) is today only one tenth of the abundance before acidification. Fish populations have declined to the same extent, and several acid-sensitive species have been lost. It is concluded that mountain streams and fauna are extremely sensitive to acidification, and that even large reductions of emissions will be insufficient.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - earth & environmental sciences
  • 3 - environmental sciences
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Pollution
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Water Science and Technology
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecological Modelling
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Engineering
Catégories WoS
  • 1 - science ; 2 - water resources
  • 1 - science ; 2 - meteorology & atmospheric sciences
  • 1 - science ; 2 - environmental sciences
Identifiant ISTEX
BCA7D62CB408F9EF451A9A34AE4D7DD2FED57CEA
Revue

Water, Air, and Soil Pollution

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.453
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-2B0ZHMNH-T
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