Blar i Brage INN på forfatter "Kozak, Natalia"
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Environmental and biological factors are joint drivers of mercury biomagnification in subarctic lake food webs along a climate and productivity gradient
Kozak, Natalia; Ahonen, Salla A.; Keva, Ossi; Østbye, Kjartan; Taipale, Sami J.; Hayden, Brian; Kahilainen, Kimmo K. (Peer reviewed; Journal article, 2021)Subarctic lakes are getting warmer and more productive due to the joint effects of climate change and intensive land-use practices (e.g. forest clear-cutting and peatland ditching), processes that potentially increase ... -
Mercury accumulation in fish and lake food webs: From molecules to ecosystems
Kozak, Natalia (PhD Thesis in Applied Ecology and Biotechnology;33, Doctoral thesis, 2023)Kvikksølv er et giftig tungmetall som bioakkumulerer i fisk og akvatiske næringsnett og som ofte gir forhøyet akkumulering på grunn av ulike økologiske faktorer. Det trengs derfor overvåkning av kvikksølv i ulike ... -
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient
Kozak, Natalia; Kahilainen, Kimmo Kalevi; Pakkanen, Hannu K.; Hayden, Brian; Østbye, Kjartan; Taipale, Sami J. (Peer reviewed; Journal article, 2023)Mercury is a highly toxic element for consumers, but its relation to amino acids and physiology of wild fish is not well known. The main aim of this study was to evaluate how total mercury content (THg) of northern pike ...