3/13/2023 0 Comments Alien skin exposure x nAccording to Hopkin ( 1993), organisms used for in situ biomonitoring should meet the following basic conditions: be ecologically meaningful (relevant), be common and widely distributed (reliable), be relatively resistant to xenobiotics (robust), exhibit characteristic and measurable (responsive), as well as repeatable in different sites (reproducible) response to xenobiotic.Īt least one invasive alien species in Iceland may be considered a candidate bioindicator and biomonitor, in respect to the above criteria: the American mink Neovison vison, recognised as one of the most harmful non-indigenous species on the island, for which eradication activities have been undertaken (von Schmalensee 2010 Stefansson et al. Consequently, a “bioindicator” can be defined as an organism that provides information on the state (quality) of the environment, while a “biomonitor” additionally allows the quantification of this information (Markert et al. ( 1999) differentiated “bioindication” and “biomonitoring” by pointing out the qualitative approach of the first and the quantitative approach of the latter. ( 1993) defined “biomonitoring” as the measurement of the typical response of living organisms to a particular change in their environment, revealing changes over space and time. Currently, 390 non-indigenous species are recorded in the country, of which seven are invasive and 25 potentially invasive (NOBANIS 2020). ![]() relatively low native species richness, availability of unoccupied ecological niches, simplified terrestrial trophic networks, low temperatures reducing the effectiveness of ecological homeostatic mechanisms and considerable anthropoppression (Bennett et al. This is well illustrated by the case of Iceland, aggregating all characteristics of subpolar regions related to the introduction of invasive non-native species, i.e. The problem of biological invasions is particularly important for insular ecosystems, characterised by high ecological vulnerability and sensitivity to deleterious effects of alien species (Bellard et al. ![]() Invasive alien species often generate risks to human health, have a negative impact on ecosystem services and, consequently, are responsible for significant economic losses (Scalera et al. In conclusion, American mink in Iceland can be considered a promising species for qualitative and quantitative assessment of ecosystems in terms of nickel pollution. The correlation coefficient between morphometric features and the level of nickel concentration in the spleen did not show a significant relationship in any of the tested combinations, for all tested animals or for each sex separately. For males, the maximum concentration exceeded the average level by more than 16 times, and for females by more than 7 times. ![]() The results indicated a substantial variation in nickel concentration in the spleen tissue of examined animals. vison is a promising candidate species for biomonitoring the deposition of this trace element. We also assessed the correlation between nickel concentration and selected anatomical and morphological parameters, hypothesising that invasive alien N. Therefore, the main objective of the study was to determine the total nickel concentration in the spleen of 35 females and 30 males obtained from Brokey archipelago and the south coast of Hvammsfjörður (Dalabyggð, Iceland) using graphite furnace atomic absorption spectroscopy. American mink Neovison vison is one of the most harmful non-indigenous species in Iceland and has been proven to be a useful indirect bioindicator and biomonitor for numerous environmental pollutants.
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