Basic physiological biomarkers in adult female perch (Perca fluviatilis) in a chronically polluted gradient in the Stockholm recipient (Sweden).
By measuring a battery of basic physiological biomarkers and the concentration of SigmaDDT in adult female perch (Perca fluviatilis), an assumed aquatic pollution gradient was confirmed, with the city of Stockholm (Sweden) as a point source of anthropogenic substances. The investigation included an upstream gradient, westwards through Lake Mälaren (46 km), and a downstream gradient, eastwards through the Stockholm archipelago (84 km). The results indicated a severe pollution situation in central Stockholm, with poor health status of the perch: retarded growth, increased frequency of sexually immature females, low gonadosomatic index, and disturbed visceral fat metabolism. SigmaDDT, measured as a pollution indicator, was 10-28 times higher than the background in perch from the Baltic Proper. Besides the main gradient other sources of pollution also influenced the response pattern of the measured biomarkers. In particular, there were strong indications of pollution coming from the Baltic Sea.
Linderoth
Maria
M
Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden. maria.linderoth@itm.su.se
Hansson
Tomas
T
Liewenborg
Birgitta
B
Sundberg
Henrik
H
Noaksson
Erik
E
Hanson
Marsha
M
Zebühr
Yngve
Y
Balk
Lennart
L
D000704:Analysis of Variance; D000818:Animals; D015415:Biomarkers / Q000032:analysis*; D001835:Body Weight; D003634:DDT / Q000032:analysis* / Q000633:toxicity; D004784:Environmental Monitoring / Q000706:statistics & numerical data*; D005260:Female; D005618:Fresh Water / Q000737:chemistry*; D006066:Gonads / Q000502:physiology; D050356:Lipid Metabolism; D009929:Organ Size; D010471:Perches / Q000254:growth & development / Q000378:metabolism*; D012741:Sexual Maturation / Q000187:drug effects; D013548:Sweden; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
D015415:Biomarkers; D014874:Water Pollutants, Chemical; D003634:DDT