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Rognerud, Sigurd; Grimalt, Joan O; Rosseland, Bjørn Olav; Fernández, Pilar; Hofer, R.; Lackner, Reinhard; Lauritzen, B.; Lien, L.; Massabuau, Jean‐Charles; Ribes, Alejandra

doi:10.1023/a:1020110810195

Cited by 77 publications

(10 citation statements)

References 41 publications

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“…It can be supposed that brown trout are able to continue to grow when switching to cannibalistic feeding, as was seen in the largest specimen in MO (540 mm, 2400 g, 17 years) that had a small brown trout (17 cm) in its stomach. A similar finding was reported by Rognerud et al (2002) from Norway. Hammer (2000) considered cannibalism of Arctic char an important strategy for survival in Arctic lakes.…”

Section: Discussionsupporting

confidence: 91%

“…Advanced age is not exceptional in such conditions, as found by Ligaszewski (1997) for brown trout (9+) and brook trout (10+) and Rosseland et al (2007) for brown trout (11+). Rognerud et al (2002) even found 26+ old Arctic charr, Salvelinus alpinus (L., 1758). From this comparison, it can be stated that in the Tatra lakes, fish can survive to similarly advanced ages as in the High Arctic.…”

Section: Discussionmentioning

confidence: 99%

“…Gallego et al (2007) considered fish age one of the most important variables influencing less-volatile PCBs and p,p'-DDE, whereas the more-volatile PCBs 28 and 52 were not associated with age or fish size. Additionally, Rognerud et al (2002) and Vives et al (2005) reported fish age to be one of the most important variables explaining OC concentrations in high-mountain lake fish in Europe and Svalbard. The elimination rate of less-volatile PCBs from fish is very slow (Rognerud et al 2002) as they are more lipophilic (Vives et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, Rognerud et al (2002) and Vives et al (2005) reported fish age to be one of the most important variables explaining OC concentrations in high-mountain lake fish in Europe and Svalbard. The elimination rate of less-volatile PCBs from fish is very slow (Rognerud et al 2002) as they are more lipophilic (Vives et al 2005). In our study, however, fish age correlated in very few cases with concentrations of a-HCH, HCB, p,p'-DDT, PCB 52, 101, and PBDE 153.…”

Section: Discussionmentioning

confidence: 99%

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Brown and brook trout populations in the Tatra Mountain lakes (Slovakia, Poland) and contamination by long-range transported pollutants

et al. 2015

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Fish living in the extreme conditions of the Tatra Mountain lakes were evaluated from a biological point of view as well as an important biomarker of long-range transported pollutants. In Velke Hincovo pleso and in Morskie Oko, specimens of brown trout (Salmo trutta) of extraordinarily advanced age were found (ages of 18+ and 17+ years, respectively). The capture of a 17+ year-old brown trout in Morskie Oko (2400 g, 540 mm) indicated the presence of the so-called ferox life strategy. The growth of brook trout (Salvelinus fontinalis) was faster than the growth of brown trout in the younger year classes, and while the growth of brook trout stopped after the age of 5+, the growth of brown trout continued. Concentrations of long-range transported pollutants (HCHs, HCB, DDTs, PCBs, PBDEs, and trace metals) in the Tatra Mountain fish were mostly associated with fish age, body weight and length, type of fish tissue, and lake altitude. Persistent organic pollutants (POPs) in fish muscle were dominated by PCBs 138, 153, 180, and p,p’-DDE. Conversely, PBDEs concentrations ranged at substantially lower levels compared to other POPs. Altitude correlated significantly with concentrations of a-HCH, HCB, p,p’-DDT, p,p’-DDE, and with PCBs 28 and 52. The highest contents of trace metals were found in kidney and liver samples, with higher concentrations in Velke Hincovo pleso than in Morskie Oko. The overall highest trace metal concentration levels were found for Fe, Cu, and Zn. In comparison with other European mountain lakes, the Tatra Mountain lakes are among the more contaminated.Postprint (author’s final draft

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Brown and brook trout populations in the Tatra Mountain lakes (Slovakia, Poland) and contamination by long-range transported pollutants

et al. 2015

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“…[225,226,230] Cannibalism played an important role in Arctic char Hg levels in a lake on Svalbard. [231] The highest concentrations were observed in piscivorous Arctic char (0.04 to 0.44 mg g À1 WW), whereas the invertebrate-feeding Arctic char had significantly lower concentrations. Cannibalism was the major force structuring age and length class distribution of the population.…”

Section: Eastern Beaufort Sea Belugamentioning

confidence: 92%

The fate of mercury in Arctic terrestrial and aquatic ecosystems, a review

Douglas

Loseto²,

Macdonald³

et al. 2012

Environ. Chem.

121

147

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Environmental context. Mercury, in its methylated form, is a neurotoxin that biomagnifies in marine and terrestrial foodwebs leading to elevated levels in fish and fish-eating mammals worldwide, including at numerous Arctic locations. Elevated mercury concentrations in Arctic country foods present a significant exposure risk to Arctic people. We present a detailed review of the fate of mercury in Arctic terrestrial and marine ecosystems, taking into account the extreme seasonality of Arctic ecosystems and the unique processes associated with sea ice and Arctic hydrology.Abstract. This review is the result of a series of multidisciplinary meetings organised by the Arctic Monitoring and Assessment Programme as part of their 2011 Assessment 'Mercury in the Arctic'. This paper presents the state-of-the-art knowledge on the environmental fate of mercury following its entry into the Arctic by oceanic, atmospheric and terrestrial pathways. Our focus is on the movement, transformation and bioaccumulation of Hg in aquatic (marine and fresh water) and terrestrial ecosystems. The processes most relevant to biological Hg uptake and the potential risk associated with Hg exposure in wildlife are emphasised. We present discussions of the chemical transformations of newly deposited or transported Hg in marine, fresh water and terrestrial environments and of the movement of Hg from air, soil and water environmental compartments into food webs. Methylation, a key process controlling the fate of Hg in most ecosystems, and the role of trophic processes in controlling Hg in higher order animals are also included. Case studies on Eastern Beaufort Sea beluga (Delphinapterus leucas) and landlocked Arctic char (Salvelinus alpinus) are presented as examples of the relationship between ecosystem trophic processes and biologic Hg levels. We examine whether atmospheric mercury depletion events (AMDEs) contribute to increased Hg levels in Arctic biota and provide information on the links between organic carbon and Hg speciation, dynamics and bioavailability. Long-term sequestration of Hg into non-biological archives is also addressed. The review concludes by identifying major knowledge gaps in our understanding, including:(1) the rates of Hg entry into marine and terrestrial ecosystems and the rates of inorganic and MeHg uptake by Arctic microbial and algal communities; (2) the bioavailable fraction of AMDE-related Hg and its rate of accumulation by biota and (3) the fresh water and marine MeHg cycle in the Arctic, especially the marine MeHg cycle.

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