Další formáty:
BibTeX
LaTeX
RIS
@article{1705216,
author = {Jurajda, Pavel and Všetičková, Lucie and Švecová, Helena and Kolářová, Jitka and Jurajdová, Zdeňka and Janáč, Michal and Roche, Kevin Francis},
article_location = {Munich},
article_number = {September 2020},
doi = {http://dx.doi.org/10.1016/j.limno.2020.125817},
keywords = {Bioaccumulation; Dreissena polymorpha; Dyje; Elbe; Macroinvertebrates; Total mercury},
language = {eng},
issn = {0075-9511},
journal = {Limnologica},
title = {Trophic mercury biomagnification patterns in two European rivers following introduction of invasive round gobies (Neogobius melanostomus)},
url = {https://doi.org/10.1016/j.limno.2020.125817},
volume = {84},
year = {2020}
}
TY - JOUR
ID - 1705216
AU - Jurajda, Pavel - Všetičková, Lucie - Švecová, Helena - Kolářová, Jitka - Jurajdová, Zdeňka - Janáč, Michal - Roche, Kevin Francis
PY - 2020
TI - Trophic mercury biomagnification patterns in two European rivers following introduction of invasive round gobies (Neogobius melanostomus)
JF - Limnologica
VL - 84
IS - September 2020
SP - 1-8
EP - 1-8
PB - Elsevier GmbH
SN - 00759511
KW - Bioaccumulation
KW - Dreissena polymorpha
KW - Dyje
KW - Elbe
KW - Macroinvertebrates
KW - Total mercury
UR - https://doi.org/10.1016/j.limno.2020.125817
L2 - https://doi.org/10.1016/j.limno.2020.125817
N2 - In this study, we examine multiple trophic levels in two Central European rivers (the Dyje and Elbe) to assess whether round goby invasion has changed the pattern of total mercury (Hg) transfer through trophic levels. In the absence of comparable historical data, we also examined levels for European gudgeon, a native benthic species occupying a similar trophic niche to round goby. Our data clearly indicated bioaccumulation of total Hg with increasing trophic position in both rivers. Patterns were very similar in both rivers, with no significant difference in total Hg accumulation between round goby and gudgeon. Biomagnification factors were high for gobies (highest in the Elbe) and relatively low for perch (higher in the Dyje), with levels for burbot (Dyje only) similar to those for gobies. Goby dietary analysis revealed a clear preference for benthic macroinvertebrates in both rivers, with zebra mussels taken only occasionally. Both perch and burbot had an omnivorous diet, effectively "diluting" total Hg accumulation from benthivorous fish. Our results indicate that goby invasion has not altered the pattern of trophic contaminant transfer and, consequently, has not increased threat levels to top predators and humans. Our results corroborate findings from around Europe suggesting a preference for macroinvertebrates over zebra mussels and provide further evidence for case-specificity regarding potential round goby impacts on recipient systems.
ER -
JURAJDA, Pavel, Lucie VŠETIČKOVÁ, Helena ŠVECOVÁ, Jitka KOLÁŘOVÁ, Zdeňka JURAJDOVÁ, Michal JANÁČ a Kevin Francis ROCHE. Trophic mercury biomagnification patterns in two European rivers following introduction of invasive round gobies (Neogobius melanostomus). \textit{Limnologica}. Munich: Elsevier GmbH, 2020, roč.~84, September 2020, s.~1-8. ISSN~0075-9511. Dostupné z: https://dx.doi.org/10.1016/j.limno.2020.125817.
|
