Lake biota response to human impact and local climate during the last 200 years: a multi-proxy study of a subalpine lake (Tatra Mountains, W Carpathians)
PBN-AR
Instytucja
Wydział Inżynierii Materiałowej i Ceramiki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Science of the Total Environment
ISSN
0048-9697
EISSN
1879-1026
Wydawca
Elsevier Science BV
Rok publikacji
2016
Numer zeszytu
Strony od-do
320--328
Numer tomu
545-546
Link do pełnego tekstu
Liczba arkuszy
0.64
Autorzy
(liczba autorów: 7)
Pozostali autorzy
+ 6
Słowa kluczowe
EN
chironomidae
paleolimnology
metal elements
loss-on-ignition
cultural eutrophication
Lake Poprasdké pleso
Streszczenia
Język
EN
Treść
Element content, loss-on-ignition, chironomid analysis and 210Pb dating were applied on a sediment core from a subalpine Tatra lake (Popradské pleso) to reveal the response of aquatic biota to eutrophication induced by human activities in the lake catchment. The lead dating indicates that the 0–8 cm section of the core represents the past ca 200 years, ending at ~ 1814 AD. Comparing the key changes of the proxies with human activities that are historically well documented, four phases of the recent lake development were distinguished: (1) a pre-tourism phase, (2) a phase of increasing touristic activity and early cottage development, (3) a phase of eutrophication, and (4) a phase of post-eutrophication. Neither touristic activity, nor early cottage development around the lake (1st and 2nd phases) had considerable influence on the chironomid assemblage structure or organic content of the lake. The most significant change both in chironomid assemblage structure and loss-on-ignition occurred during the 3rd phase, when a big tourist hotel was built close by the lake and started contaminating it via direct wastewater input. However, the structure of the chironomid assemblage has not changed significantly over time and the dominating taxa remained the same during the whole period. Parallel with the nutrient signal of the paleo assemblage, a secondary signal has been identified as the ratio of rheophilic taxa on total abundance that did not correlate with the sediment's organic content, and is most likely driven by local climatic oscillations. Changes of most of metal elements concentrations reflected rather bigger scale changes of industrial activities than local scale human disturbances. Our results indicate that hydromorphological properties can moderate the impact of organic pollution on the lake biota.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:095329
CrossrefMetadata from Crossref logo
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