Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [320914] |
Successional blooms of alkenone‐producing haptophytes in Lake George, North Dakota: Implications for continental paleoclimate reconstructions
Theroux, S.; Huang, Y.; Toney, J.L.; Andersen, R.; Nyren, P.; Bohn, R.; Salacup, J.; Murphy, L.; Amaral-Zettler, L. (2020). Successional blooms of alkenone‐producing haptophytes in Lake George, North Dakota: Implications for continental paleoclimate reconstructions. Limnol. Oceanogr. 65(2): 413-425. https://dx.doi.org/10.1002/lno.11311
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Waco, Tex., etc. ISSN 0024-3590; e-ISSN 1939-5590, meer
|   |
| Auteurs | | Top |
- Theroux, S.
- Huang, Y.
- Toney, J.L.
|
- Andersen, R.
- Nyren, P.
- Bohn, R.
|
- Salacup, J.
- Murphy, L.
- Amaral-Zettler, L., meer
|
| Abstract |
Alkenone-derived paleotemperature reconstruction holds great promise in lake environments. However, theoccurrence of multiple species of alkenone-producing haptophyte algae in a single lake can complicate thetranslation of alkenone unsaturation to temperature if each species requires an individual temperature calibra-tion. Here, we present thefirst systematic monitoring of two alkenone-producing haptophytes throughout thecourse of a seasonal cycle in Lake George, North Dakota, using a combined approach of DNA sequencing andalkenone lipid characterization. Field sampling revealed a nonoverlapping haptophyte succession, with both anearly and late season haptophyte bloom event. Culturing experiments demonstrated that the two haptophytespecies responsible for these blooms had statistically similar alkenone-temperature responses, although theculture-based calibrations were distinct from the in situ calibration. Bloom timing of each haptophyte speciescorresponded to surface-water temperatures that differed by more than 10?C, revealing that changes in bloomintensities for each species will skew the sediment-inferred temperatures to a different stage of the growth sea-son. These results highlight the importance of accounting for bloom timing when interpreting alkenone-derivedtemperatures in sediment cores, especially in lakes that experience large seasonalfluctuations in water columntemperature and salinity. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
