Research Topics
| Lennart BalkSummaryAffiliation: Stockholm University Country: Sweden Publications
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Detail Information
Publications
Biomarkers in natural fish populations indicate adverse biological effects of offshore oil productionLennart Balk
Department of Applied Environmental Science, Stockholm University, Stockholm, Sweden
PLoS ONE 6:e19735. 2011..This type of oil production causes continuous environmental pollution from drilling waste, discharge of large amounts of produced water, and accidental spills...- Wild birds of declining European species are dying from a thiamine deficiency syndromeLennart Balk
Department of Applied Environmental Science, Stockholm University, SE 106 91 Stockholm, Sweden
Proc Natl Acad Sci U S A 106:12001-6. 2009..We propose that the mortality and breeding failure are part of a thiamine deficiency syndrome, which may have contributed significantly to declines in many bird populations during the last decades... 
Basic physiological biomarkers in adult female perch (Perca fluviatilis) in a chronically polluted gradient in the Stockholm recipient (Sweden)Maria Linderoth
Department of Applied Environmental Science, Stockholm University, SE 106 91 Stockholm, Sweden
Mar Pollut Bull 53:437-50. 2006..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...- Biochemical biomarkers in adult female perch (Perca fluviatilis) in a chronically polluted gradient in the Stockholm recipient (Sweden)Tomas Hansson
Department of Applied Environmental Science, Stockholm University, SE 106 91 Stockholm, Sweden
Mar Pollut Bull 53:451-68. 2006..In addition, laboratory exposure to common EROD inducers elicited an abnormal response, suggestive of chronic intoxication... - Toxicological effects and reproductive impairments in female perch (Perca fluviatilis) exposed to leachate from Swedish refuse dumpsErik Noaksson
Department of Applied Environmental Science ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Aquat Toxicol 75:162-77. 2005.... - The distribution and relative toxic potential of organic chemicals in a PCB contaminated bayHenrik Sundberg
Institute of Applied Environmental Research ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Mar Pollut Bull 50:195-207. 2005.... - Steroid biosynthetic enzyme activities in leachate-exposed female perch (Perca fluviatilis) as biomarkers for endocrine disruptionMaria Linderoth
Department of Applied Environmental Science ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Sci Total Environ 366:638-48. 2006..Further investigation is needed to establish the role of decreased ovarian lyase activity in endocrine homeostasis, but the possibility of increased excretion of androgens should also be examined... - Dredging associated effects: maternally transferred pollutants and DNA adducts in feral fishHenrik Sundberg
Department of Applied Environmental Science ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Environ Sci Technol 41:2972-7. 2007..Our findings underline the importance of combining chemical and toxicological methods as well as a need for greater emphasis on other polycyclic aromatic compounds in environmental risk evaluations... 
Genotoxicity in herring gulls (Larus argentatus) in Sweden and IcelandHalldora Skarphedinsdottir
Department of Applied Environmental Science, Unit of Environmental Toxicology and Chemistry, Stockholm University, Stockholm, Sweden
Mutat Res 702:24-31. 2010..The investigation confirmed the utility of DNA adducts, and probably also micronucleated erythrocytes, as biomarkers of genotoxicity in birds...- Reproductive status in female perch (Perca fluviatilis) outside a sewage treatment plant processing leachate from a refuse dumpErik Noaksson
Laboratory for Aquatic Ecotoxicology, Institute of Applied Environmental Research ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Sci Total Environ 340:97-112. 2005..The consistently high numbers of SM females in the northern part of Siljan suggest, however, that natural factors are not responsible for the reproductive failures in the southern part of the lake... - A bio-effect directed fractionation study for toxicological and chemical characterization of organic compounds in bottom sedimentHenrik Sundberg
Department of Applied Environmental Research ITM, Stockholm University, SE 106 91 Stockholm, Sweden, and County Administrative Board of Stockholm, SE 104 22 Stockholm, Sweden
Toxicol Sci 84:63-72. 2005.... - Sex steroids in the female zebrafish (Danio rerio). Effects of cyproterone acetate and leachate-contaminated sediment extractMaria Linderoth
Department of Applied Environmental Science, Stockholm University, SE 106 91 Stockholm, Sweden
Aquat Toxicol 79:192-200. 2006..0-4.5pmol/g fish). This suggests that sex steroid concentrations in zebrafish are responsive to endocrine alteration and indicates that compounds with endocrine altering potency are present in Molnbyggen sediments... - Long-term monitoring of the health status of female perch (Perca fluviatilis) in the Baltic Sea shows decreased gonad weight and increased hepatic EROD activityTomas Hansson
Department of Applied Environmental Science, ITM, Stockholm University, SE 106 91 Stockholm, Sweden
Aquat Toxicol 79:341-55. 2006..It is urgent to make further studies in order to identify which pollutant(s) or other possible cause(s) are responsible for the observed biological effects... - Seasonal testosterone UDP-glucuronosyltransferase activity and biliary steroids in Eurasian perch: response to leachate exposureMaria Linderoth
Department of Applied Environmental Science, Stockholm University, SE 106 91 Stockholm, Sweden
Ecotoxicol Environ Saf 68:49-56. 2007..Biliary steroid levels correlated with corresponding plasma steroid levels. In conclusion, the reduced androgen levels in exposed female perch are most likely not caused by increased steroid excretion... - Altered steroid metabolism in several teleost species exposed to endocrine disrupting substances in refuse dump leachateErik Noaksson
Laboratory for Aquatic Ecotoxicology, Institute of Applied Environmental Research, Stockholm University, S 106 91 Stockholm, Sweden
Gen Comp Endocrinol 134:273-84. 2003.... - Gonad development and plasma steroid profiles by HRGC/HRMS during one reproductive cycle in reference and leachate-exposed female perch (Perca fluviatilis)Erik Noaksson
Laboratory for Aquatic Ecotoxicology, Institute of Applied Environmental Research, Stockholm University, SE 106 91 Stockholm, Sweden
Toxicol Appl Pharmacol 195:247-61. 2004..Peak levels of 17alpha,20beta-P at the time of spawning confirmed its function as the MIH in perch, while the simultaneous peak of 11-DC suggests that it also may be involved in final maturation of the oocytes... - Paraquat and menadione exposure of rainbow trout (Oncorhynchus mykiss)--studies of effects on the pentose-phosphate shunt and thiamine levels in liver and kidneyGun Akerman
Laboratory for Aquatic Ecotoxicology, Institute of Applied Environmental Research, Stockholm University, SE 106 91 Stockholm, Sweden
Chem Biol Interact 142:269-83. 2003..e., the rate-limiting enzyme in the oxidative part of the pentose-phosphate shunt. Despite this paraquat exposure did not affect transketolase activity and total thiamine concentration... - Endocrine disruption in brook trout (Salvelinus fontinalis) exposed to leachate from a public refuse dumpErik Noaksson
Laboratory for Aquatic Ecotoxicology, Institute of Applied Environmental Research ITM, Stockholm University, S 106 91, Stockholm, Sweden
Sci Total Environ 305:87-103. 2003..The low levels of PAHs and PCBs in the surface sediments of Lake Molnbyggen suggest that these pollutants are not the responsible EDS(s)...