Premium
Accumulation and effects of aluminium in the minnow ( Phoxinus phoxinus L.) at different pH levels
Author(s) -
Norrgren L.,
Wicklund Gl A.,
Malmborg O.
Publication year - 1991
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1991.tb04413.x
Subject(s) - phoxinus , gill , minnow , aluminium , biology , zoology , soft water , fish <actinopterygii> , environmental chemistry , fishery , chemistry , metallurgy , materials science , organic chemistry
The accumulation and effects of 150 pg All ‐1 on minnows ( Phoxinus phoxinus L.) were studied in soft water at pH 7, 6 and 5. The fish were kept in a flow‐through water system for up to 48 days. Addition of aluminium to the water resulted in poor appetite, passivity and a tendency for the fish to gather as far as possible from the aluminium inlet. The mortality was high at pH 5 and also after addition of aluminium at pH 6. Severe lesions were noted in the gills and olfactory organs after exposure to aluminium. The concentration of aluminium in the gills, liver and kidney was increased at low pH. A large proportion of the aluminium was located on the surface of the gill epithelium. The recovery capacity was pronounced when the aluminium exposure was terminated and the pH was increased from 5 to 7. No further mortality occurred and gill and olfactory organ structure returned to near normality in about 36 days.