Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient
Kozak, N., Kahilainen, K. K., Pakkanen, H. K., Hayden, B., Østbye, K., & Taipale, S. J. (2023). Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient. Environmental Research, 233, Article 116511. https://doi.org/10.1016/j.envres.2023.116511
Julkaistu sarjassa
Environmental ResearchTekijät
Päivämäärä
2023Oppiaine
Soveltava kemiaAkvaattiset tieteetResurssiviisausyhteisöApplied ChemistryAquatic SciencesSchool of Resource WisdomTekijänoikeudet
© 2023 the Authors
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 (Esox lucius) is related to amino acids and potentially important environmental and biological factors along a climate-productivity gradient of ten subarctic lakes. Linear regression between THg and sixteen amino acids content [nmol mg−1 dry weight] from white dorsal muscle of pike from these lakes were tested. Lastly, a general linear model (GLM) for age-corrected THg was used to test which factors are significantly related to mercury content of pike. There was a positive relationship between THg and proline. Seven out of sixteen analysed amino acids (histidine, threonine, arginine, serine, glutamic acid, glycine, and aspartic acid) were significantly negatively related to warmer and more productive lakes, while THg showed a positive relationship. GLM model indicated higher THg was found in higher trophic level pike with lower cysteine content and inhabiting warmer and more productive lakes with larger catchment containing substantial proportion of peatland area. In general, THg was not only related to the biological and environmental variables but also to amino acid content.
...
Julkaisija
ElsevierISSN Hae Julkaisufoorumista
0013-9351Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/183752394
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Akatemiahanke, SALisätietoja rahoituksesta
Funding was received from the Academy of Finland [projects 1140903, 1268566 to KKK and 333564 to SJT], and Inland Norway University of Applied Sciences PhD scholarship for NK. All authors declare no conflict of interest.Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
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. (Elsevier, 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 the northern pike (Esox lucius) and its intestinal parasite, Triaenophorus nodulosus (Cestoda)
Iwu, Nnaemeka Wilfred (2010) -
Allochthony, fatty acid and mercury trends in muscle of Eurasian perch (Perca fluviatilis) along boreal environmental gradients
Keva, Ossi; Kiljunen, Mikko; Hämäläinen, Heikki; Jones, Roger I.; Kahilainen, Kimmo K.; Kankaala, Paula; Laine, Miikka B.; Schilder, Jos; Strandberg, Ursula; Vesterinen, Jussi; Taipale, Sami J. (Elsevier, 2022)Environmental change, including joint effects of increasing dissolved organic carbon (DOC) and total phosphorus (TP) in boreal northern lakes could potentially affects food web energy sources and the biochemical composition ... -
Fish muscle mercury concentration and bioaccumulation fluctuate year-round : Insights from cyprinid and percid fishes in a humic boreal lake
Piro, A. J.; Taipale, S. J.; Laiho, H. M.; Eerola, E. S.; Kahilainen, K. K. (Elsevier BV, 2023)Boreal lakes demonstrate pronounced seasonality, where the warm open-water season and subsequent cold and ice-covered season dominate natural cycles. While fish muscle total mercury concentration (mg/kg) [THg] is well ... -
Temperature, phosphorus and species composition will all influence phytoplankton production and content of polyunsaturated fatty acids
Calderini, Marco L.; Pääkkönen, Salli; Salmi, Pauliina; Peltomaa, Elina; Taipale, Sami J. (Oxford University Press (OUP), 2023)Temperature increases driven by climate change are expected to decrease the availability of polyunsaturated fatty acids in lakes worldwide. Nevertheless, a comprehensive understanding of the joint effects of lake trophic ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.