[{"publication":"PLoS ONE","article_number":"e102367","_id":"12246","oa":"1","volume":9,"publication_status":"published","date_created":"2024-12-08T20:40:45Z","language":[{"iso":"eng"}],"citation":{"ama":"Shatwell T, Köhler J, Nicklisch A. Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. <i>PLoS ONE</i>. 2014;9(7). doi:<a href=\"https://doi.org/10.1371/journal.pone.0102367\">10.1371/journal.pone.0102367</a>","van":"Shatwell T, Köhler J, Nicklisch A. Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. PLoS ONE. 2014;9(7).","ieee":"T. Shatwell, J. Köhler, and A. Nicklisch, “Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms,” <i>PLoS ONE</i>, vol. 9, no. 7, Art. no. e102367, 2014, doi: <a href=\"https://doi.org/10.1371/journal.pone.0102367\">10.1371/journal.pone.0102367</a>.","chicago":"Shatwell, Tom, Jan Köhler, and Andreas Nicklisch. “Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms.” <i>PLoS ONE</i> 9, no. 7 (2014). <a href=\"https://doi.org/10.1371/journal.pone.0102367\">https://doi.org/10.1371/journal.pone.0102367</a>.","bjps":"<b>Shatwell T, Köhler J and Nicklisch A</b> (2014) Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. <i>PLoS ONE</i> <b>9</b>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Köhler, Jan</span> ; <span style=\"font-variant:small-caps;\">Nicklisch, Andreas</span>: Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. In: <i>PLoS ONE</i> Bd. 9. San Francisco, California, US , Public Library of Science (PLoS) (2014), Nr. 7","havard":"T. Shatwell, J. Köhler, A. Nicklisch, Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms, PLoS ONE. 9 (2014).","ufg":"<b>Shatwell, Tom/Köhler, Jan/Nicklisch, Andreas</b>: Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms, in: <i>PLoS ONE</i> 9 (2014), H. 7.","chicago-de":"Shatwell, Tom, Jan Köhler und Andreas Nicklisch. 2014. Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. <i>PLoS ONE</i> 9, Nr. 7. doi:<a href=\"https://doi.org/10.1371/journal.pone.0102367\">10.1371/journal.pone.0102367</a>, .","short":"T. Shatwell, J. Köhler, A. Nicklisch, PLoS ONE 9 (2014).","apa":"Shatwell, T., Köhler, J., &#38; Nicklisch, A. (2014). Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms. <i>PLoS ONE</i>, <i>9</i>(7), Article e102367. <a href=\"https://doi.org/10.1371/journal.pone.0102367\">https://doi.org/10.1371/journal.pone.0102367</a>","mla":"Shatwell, Tom, et al. “Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms.” <i>PLoS ONE</i>, vol. 9, no. 7, e102367, 2014, <a href=\"https://doi.org/10.1371/journal.pone.0102367\">https://doi.org/10.1371/journal.pone.0102367</a>."},"place":"San Francisco, California, US ","publication_identifier":{"eissn":["1932-6203"]},"author":[{"first_name":"Tom","last_name":"Shatwell","id":"86424","full_name":"Shatwell, Tom","orcid":"0000-0002-4520-7916"},{"last_name":"Köhler","full_name":"Köhler, Jan","first_name":"Jan"},{"first_name":"Andreas","last_name":"Nicklisch","full_name":"Nicklisch, Andreas"}],"intvolume":"         9","title":"Temperature and Photoperiod Interactions with Phosphorus-Limited Growth and Competition of Two Diatoms","main_file_link":[{"url":"https://doi.org/10.1371/journal.pone.0102367","open_access":"1"}],"status":"public","department":[{"_id":"DEP8022"}],"year":"2014","user_id":"83781","abstract":[{"text":"In lakes, trophic change and climate change shift the relationship between nutrients and physical factors, like temperature and photoperiod, and interactions between these factors should affect the growth of phytoplankton species differently. We therefore determined the relationship between P-limited specific growth rates and P-quota (biovolume basis) of Stephanodiscus minutulus and Nitzschia acicularis (diatoms) at or near light saturation in axenic, semi-continuous culture at 10, 15 and 20 °C and at 6, 9 and 12 h d−1 photoperiod. Photoperiod treatments were performed at constant daily light exposure to allow comparison. Under these conditions, we also performed competition experiments and estimated relative P-uptake rates of the species. Temperature strongly affected P-limited growth rates and relative P uptake rates, whereas photoperiod only affected maximum growth rates. S. minutulus used internal P more efficiently than N. acicularis. N. acicularis was the superior competitor for P due to a higher relative uptake rate and its superiority increased with increasing temperature and photoperiod. S. minutulus conformed to the Droop relationship but N. acicularis did not. A model with a temperature-dependent normalised half-saturation coefficient adequately described the factor interactions of both species. The temperature dependence of the quota model reflected each species’ specific adaptation to its ecological niche. The results demonstrate that increases in temperature or photoperiod can partially compensate for a decrease in P-quota under moderately limiting conditions, like during spring in temperate lakes. Thus warming may counteract de-eutrophication to some degree and a relative shift in growth factors can influence the phytoplankton species composition.","lang":"eng"}],"extern":"1","publisher":"Public Library of Science (PLoS)","type":"scientific_journal_article","quality_controlled":"1","date_updated":"2024-12-09T09:09:08Z","doi":"10.1371/journal.pone.0102367","issue":"7"},{"department":[{"_id":"DEP8022"}],"year":"2013","user_id":"83781","status":"public","keyword":["Leaching","Phosphorus retention","Phragmites australis","Top soil removal","Redox interface","Rewetting"],"extern":"1","page":"82-90","abstract":[{"text":"When severely degraded fens are rewetted, they often become shallow lakes with an average water depth of less than 1 m. The additional high nutrient availability in highly decomposed peat soils of these newly formed ecosystems favours the fast establishment of a small number of helophytes while the return of lost target species like low sedges and brown mosses could be delayed for decades. We hypothesise that the phosphorus (P) uptake of the newly developed vegetation substantially influences the P cycle in rewetted fens. Therefore, we investigated how much of the P released in upper degraded peat soils is pumped across the redox-interface between the soil and surface water (=‘P barrier’) during the growing season (∼150 days) by six helophytes (Phragmites australis, Typha latifolia, Glyceria maxima, Carex acutiformis, Carex riparia, and Phalaris arundinacea) in five rewetted fens. We then assessed how this would affect the different plant-available P fractions in the rooted degraded peat layers. The highest P uptake during the growing season (duration 150 days from May to September) was recorded for T. latifolia and G. maxima (3.0 and 2.8 g m−2, respectively). Overall, the P uptake was in the range of the P mobilisation rates we measured in highly decomposed peat soils (range: 0.8–15.6 g P m−2, n = 30), but four to 10-fold higher than diffusive net P fluxes at the interface between soil and surface water. Accordingly, helophytes are able to compensate for the high P mobilisation in degraded peat soils during the growing season, by incorporating this P into biomass. On the other hand a large part of the plant-P stock is released after die back through leaching and mineralisation, which increases the P load of these newly formed shallow lakes and possibly also of adjacent water courses. We estimated that it would still take 20–50 years to exhaust the large pool of plant-available P in highly decomposed peat soils if aboveground biomass was removed. Without any further management apart from fen rewetting it is unlikely that the fens will return to low nutrient levels within a human life time.","lang":"eng"}],"type":"scientific_journal_article","publisher":"Elsevier BV","issue":"5","quality_controlled":"1","doi":"10.1016/j.ecoleng.2013.10.003","date_updated":"2024-12-09T09:06:10Z","publication":"Ecological Engineering","_id":"12247","publication_identifier":{"issn":["0925-8574"]},"intvolume":"        66","author":[{"first_name":"Dominik","full_name":"Zak, Dominik","last_name":"Zak"},{"last_name":"Gelbrecht","full_name":"Gelbrecht, Jörg","first_name":"Jörg"},{"first_name":"Stefan","last_name":"Zerbe","full_name":"Zerbe, Stefan"},{"orcid":"0000-0002-4520-7916","full_name":"Shatwell, Tom","last_name":"Shatwell","id":"86424","first_name":"Tom"},{"first_name":"Martin","full_name":"Barth, Martin","last_name":"Barth"},{"first_name":"Alvaro","last_name":"Cabezas","full_name":"Cabezas, Alvaro"},{"first_name":"Peggy","full_name":"Steffenhagen, Peggy","last_name":"Steffenhagen"}],"date_created":"2024-12-08T20:42:18Z","language":[{"iso":"eng"}],"volume":66,"publication_status":"published","place":"Amsterdam","citation":{"chicago-de":"Zak, Dominik, Jörg Gelbrecht, Stefan Zerbe, Tom Shatwell, Martin Barth, Alvaro Cabezas und Peggy Steffenhagen. 2013. How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration. <i>Ecological Engineering</i> 66, Nr. 5: 82–90. doi:<a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">10.1016/j.ecoleng.2013.10.003</a>, .","ufg":"<b>Zak, Dominik u. a.</b>: How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration, in: <i>Ecological Engineering</i> 66 (2013), H. 5,  S. 82–90.","apa":"Zak, D., Gelbrecht, J., Zerbe, S., Shatwell, T., Barth, M., Cabezas, A., &#38; Steffenhagen, P. (2013). How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration. <i>Ecological Engineering</i>, <i>66</i>(5), 82–90. <a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">https://doi.org/10.1016/j.ecoleng.2013.10.003</a>","mla":"Zak, Dominik, et al. “How Helophytes Influence the Phosphorus Cycle in Degraded Inundated Peat Soils – Implications for Fen Restoration.” <i>Ecological Engineering</i>, vol. 66, no. 5, 2013, pp. 82–90, <a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">https://doi.org/10.1016/j.ecoleng.2013.10.003</a>.","short":"D. Zak, J. Gelbrecht, S. Zerbe, T. Shatwell, M. Barth, A. Cabezas, P. Steffenhagen, Ecological Engineering 66 (2013) 82–90.","havard":"D. Zak, J. Gelbrecht, S. Zerbe, T. Shatwell, M. Barth, A. Cabezas, P. Steffenhagen, How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration, Ecological Engineering. 66 (2013) 82–90.","chicago":"Zak, Dominik, Jörg Gelbrecht, Stefan Zerbe, Tom Shatwell, Martin Barth, Alvaro Cabezas, and Peggy Steffenhagen. “How Helophytes Influence the Phosphorus Cycle in Degraded Inundated Peat Soils – Implications for Fen Restoration.” <i>Ecological Engineering</i> 66, no. 5 (2013): 82–90. <a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">https://doi.org/10.1016/j.ecoleng.2013.10.003</a>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Zak, Dominik</span> ; <span style=\"font-variant:small-caps;\">Gelbrecht, Jörg</span> ; <span style=\"font-variant:small-caps;\">Zerbe, Stefan</span> ; <span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Barth, Martin</span> ; <span style=\"font-variant:small-caps;\">Cabezas, Alvaro</span> ; <span style=\"font-variant:small-caps;\">Steffenhagen, Peggy</span>: How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration. In: <i>Ecological Engineering</i> Bd. 66. Amsterdam, Elsevier BV (2013), Nr. 5, S. 82–90","bjps":"<b>Zak D <i>et al.</i></b> (2013) How Helophytes Influence the Phosphorus Cycle in Degraded Inundated Peat Soils – Implications for Fen Restoration. <i>Ecological Engineering</i> <b>66</b>, 82–90.","ama":"Zak D, Gelbrecht J, Zerbe S, et al. How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration. <i>Ecological Engineering</i>. 2013;66(5):82-90. doi:<a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">10.1016/j.ecoleng.2013.10.003</a>","van":"Zak D, Gelbrecht J, Zerbe S, Shatwell T, Barth M, Cabezas A, et al. How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration. Ecological Engineering. 2013;66(5):82–90.","ieee":"D. Zak <i>et al.</i>, “How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration,” <i>Ecological Engineering</i>, vol. 66, no. 5, pp. 82–90, 2013, doi: <a href=\"https://doi.org/10.1016/j.ecoleng.2013.10.003\">10.1016/j.ecoleng.2013.10.003</a>."},"title":"How helophytes influence the phosphorus cycle in degraded inundated peat soils – Implications for fen restoration","main_file_link":[{"url":"https://doi.org/10.1016/j.ecoleng.2013.10.003"}]},{"main_file_link":[{"url":"https://doi.org/10.1093/plankt/fbt058"}],"title":"Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms","author":[{"last_name":"Shatwell","id":"86424","full_name":"Shatwell, Tom","first_name":"Tom","orcid":"0000-0002-4520-7916"},{"first_name":"Jan","last_name":"Köhler","full_name":"Köhler, Jan"},{"first_name":"Andreas","last_name":"Nicklisch","full_name":"Nicklisch, Andreas"}],"intvolume":"        35","publication_identifier":{"issn":["0142-7873"],"eissn":["1464-3774"]},"place":"Oxford","citation":{"havard":"T. Shatwell, J. Köhler, A. Nicklisch, Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms, Journal of Plankton Research. 35 (2013) 957–971.","ieee":"T. Shatwell, J. Köhler, and A. Nicklisch, “Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms,” <i>Journal of Plankton Research</i>, vol. 35, no. 5, pp. 957–971, 2013, doi: <a href=\"https://doi.org/10.1093/plankt/fbt058\">10.1093/plankt/fbt058</a>.","ama":"Shatwell T, Köhler J, Nicklisch A. Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms. <i>Journal of Plankton Research</i>. 2013;35(5):957-971. doi:<a href=\"https://doi.org/10.1093/plankt/fbt058\">10.1093/plankt/fbt058</a>","van":"Shatwell T, Köhler J, Nicklisch A. Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms. Journal of Plankton Research. 2013;35(5):957–71.","bjps":"<b>Shatwell T, Köhler J and Nicklisch A</b> (2013) Temperature and Photoperiod Interactions with Silicon-Limited Growth and Competition of Two Diatoms. <i>Journal of Plankton Research</i> <b>35</b>, 957–971.","short":"T. Shatwell, J. Köhler, A. Nicklisch, Journal of Plankton Research 35 (2013) 957–971.","apa":"Shatwell, T., Köhler, J., &#38; Nicklisch, A. (2013). Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms. <i>Journal of Plankton Research</i>, <i>35</i>(5), 957–971. <a href=\"https://doi.org/10.1093/plankt/fbt058\">https://doi.org/10.1093/plankt/fbt058</a>","mla":"Shatwell, Tom, et al. “Temperature and Photoperiod Interactions with Silicon-Limited Growth and Competition of Two Diatoms.” <i>Journal of Plankton Research</i>, vol. 35, no. 5, 2013, pp. 957–71, <a href=\"https://doi.org/10.1093/plankt/fbt058\">https://doi.org/10.1093/plankt/fbt058</a>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Köhler, Jan</span> ; <span style=\"font-variant:small-caps;\">Nicklisch, Andreas</span>: Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms. In: <i>Journal of Plankton Research</i> Bd. 35. Oxford, Oxford University Press (OUP) (2013), Nr. 5, S. 957–971","ufg":"<b>Shatwell, Tom/Köhler, Jan/Nicklisch, Andreas</b>: Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms, in: <i>Journal of Plankton Research</i> 35 (2013), H. 5,  S. 957–971.","chicago":"Shatwell, Tom, Jan Köhler, and Andreas Nicklisch. “Temperature and Photoperiod Interactions with Silicon-Limited Growth and Competition of Two Diatoms.” <i>Journal of Plankton Research</i> 35, no. 5 (2013): 957–71. <a href=\"https://doi.org/10.1093/plankt/fbt058\">https://doi.org/10.1093/plankt/fbt058</a>.","chicago-de":"Shatwell, Tom, Jan Köhler und Andreas Nicklisch. 2013. Temperature and photoperiod interactions with silicon-limited growth and competition of two diatoms. <i>Journal of Plankton Research</i> 35, Nr. 5: 957–971. doi:<a href=\"https://doi.org/10.1093/plankt/fbt058\">10.1093/plankt/fbt058</a>, ."},"language":[{"iso":"eng"}],"date_created":"2024-12-08T20:43:29Z","volume":35,"publication_status":"published","_id":"12248","publication":"Journal of Plankton Research","issue":"5","doi":"10.1093/plankt/fbt058","date_updated":"2024-12-09T09:04:06Z","quality_controlled":"1","type":"scientific_journal_article","publisher":"Oxford University Press (OUP)","extern":"1","abstract":[{"text":"Diatoms often dominate temperate lakes and rivers in spring, when increasing temperature and daylength coincide with decreasing silicate concentrations. Since interactions between these factors may be important, we cultivated Stephanodiscus minutulus and Nitzschia acicularis (freshwater diatoms) under silicon limitation at different temperatures and photoperiods in continuous and batch culture. The Monod parameters of Si-limited growth indicated that S. minutulus should be superior under Si limitation. The type of interaction between silicate, temperature and photoperiod differed between species and indicated that the advantage of S. minutulus increases under low temperatures and photoperiods. Competition experiments in semicontinuous culture confirmed these predictions and were described accurately with a model of factor interactions. Multiple regression analysis of field data from a shallow eutrophic lake showed that dissolved silicate (DSi), temperature, photoperiod and total phosphorus (TP) were the most important predictors of spring centric diatom biovolume, where lower temperatures and photoperiods favour this group and higher biovolumes coincide with DSi depletion and higher TP. Pennate diatoms depended more on light, winter population size and grazer abundance. Conditions in situ suggested that factor interactions play a role during spring under strong Si limitation. We propose that the type of interaction reflects specific niche adaptation. Understanding interactions between physical factors and nutrients will increase our understanding of phytoplankton diversity and predictive accuracy of phytoplankton dynamics including combined effects of climate and trophic change.","lang":"eng"}],"page":"957-971","user_id":"83781","year":"2013","department":[{"_id":"DEP8022"}],"status":"public"},{"language":[{"iso":"eng"}],"date_created":"2024-12-08T20:44:14Z","publication_status":"published","volume":496,"place":"Amsterdam","citation":{"bjps":"<b>Kirillin G, Shatwell T and Kasprzak P</b> (2013) Consequences of Thermal Pollution from a Nuclear Plant on Lake Temperature and Mixing Regime. <i>Journal of Hydrology</i> <b>496</b>, 47–56.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Kirillin, Georgiy</span> ; <span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Kasprzak, Peter</span>: Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime. In: <i>Journal of Hydrology</i> Bd. 496. Amsterdam, Elsevier BV (2013), Nr. 7, S. 47–56","chicago":"Kirillin, Georgiy, Tom Shatwell, and Peter Kasprzak. “Consequences of Thermal Pollution from a Nuclear Plant on Lake Temperature and Mixing Regime.” <i>Journal of Hydrology</i> 496, no. 7 (2013): 47–56. <a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">https://doi.org/10.1016/j.jhydrol.2013.05.023</a>.","ieee":"G. Kirillin, T. Shatwell, and P. Kasprzak, “Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime,” <i>Journal of Hydrology</i>, vol. 496, no. 7, pp. 47–56, 2013, doi: <a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">10.1016/j.jhydrol.2013.05.023</a>.","ama":"Kirillin G, Shatwell T, Kasprzak P. Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime. <i>Journal of Hydrology</i>. 2013;496(7):47-56. doi:<a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">10.1016/j.jhydrol.2013.05.023</a>","van":"Kirillin G, Shatwell T, Kasprzak P. Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime. Journal of Hydrology. 2013;496(7):47–56.","short":"G. Kirillin, T. Shatwell, P. Kasprzak, Journal of Hydrology 496 (2013) 47–56.","apa":"Kirillin, G., Shatwell, T., &#38; Kasprzak, P. (2013). Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime. <i>Journal of Hydrology</i>, <i>496</i>(7), 47–56. <a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">https://doi.org/10.1016/j.jhydrol.2013.05.023</a>","mla":"Kirillin, Georgiy, et al. “Consequences of Thermal Pollution from a Nuclear Plant on Lake Temperature and Mixing Regime.” <i>Journal of Hydrology</i>, vol. 496, no. 7, 2013, pp. 47–56, <a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">https://doi.org/10.1016/j.jhydrol.2013.05.023</a>.","ufg":"<b>Kirillin, Georgiy/Shatwell, Tom/Kasprzak, Peter</b>: Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime, in: <i>Journal of Hydrology</i> 496 (2013), H. 7,  S. 47–56.","chicago-de":"Kirillin, Georgiy, Tom Shatwell und Peter Kasprzak. 2013. Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime. <i>Journal of Hydrology</i> 496, Nr. 7: 47–56. doi:<a href=\"https://doi.org/10.1016/j.jhydrol.2013.05.023\">10.1016/j.jhydrol.2013.05.023</a>, .","havard":"G. Kirillin, T. Shatwell, P. Kasprzak, Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime, Journal of Hydrology. 496 (2013) 47–56."},"publication_identifier":{"eissn":["1879-2707"],"issn":["0022-1694"]},"intvolume":"       496","author":[{"full_name":"Kirillin, Georgiy","last_name":"Kirillin","first_name":"Georgiy"},{"id":"86424","last_name":"Shatwell","full_name":"Shatwell, Tom","first_name":"Tom","orcid":"0000-0002-4520-7916"},{"first_name":"Peter","full_name":"Kasprzak, Peter","last_name":"Kasprzak"}],"title":"Consequences of thermal pollution from a nuclear plant on lake temperature and mixing regime","main_file_link":[{"url":"https://doi.org/10.1016/j.jhydrol.2013.05.023"}],"publication":"Journal of Hydrology","_id":"12249","publisher":"Elsevier BV","type":"scientific_journal_article","quality_controlled":"1","doi":"10.1016/j.jhydrol.2013.05.023","date_updated":"2024-12-09T09:02:37Z","issue":"7","status":"public","department":[{"_id":"DEP8022"}],"year":"2013","user_id":"83781","page":"47-56","abstract":[{"text":"We investigated the combined effects of thermal pollution from a nuclear power plant (NPP) and regional climate warming on the thermal regime of a lake. For this purpose, we used the lake model FLake and analyzed 50 years of temperature data from Lake Stechlin, Germany, which served as the cooling water reservoir for the Rheinsberg NPP from 1966 until 1990. Both modeling and statistical data analysis revealed a strong influence of the NPP cooling water discharge on the lake water temperatures and the vertical stability of the water column. A remarkable effect of thermal pollution consisted of strong vertical mixing in winter produced by the discharge of warm water into the lake when ambient water temperatures were below 4 °C. This effect caused a significant increase in the deep hypolimnion temperatures and a corresponding decrease of the vertical stability in the summer. In turn, climate warming had the opposite effect on the summer stability by increasing lake surface temperatures. Both the thermal pollution and climate change increased the duration of the summer stratification period. Our results suggest that industrial thermal pollution in temperate lakes during winter is stored in the deep water column until the next winter, whereas heat added in the summer dissipates relatively rapidly into the atmosphere. Accordingly, the winter thermal pollution could have a long-lasting effect on the lake ecology by affecting benthic biogeochemical processes.","lang":"eng"}],"keyword":["Industrial thermal pollution","Global warming","Lake stratification","FLake model"],"extern":"1"},{"_id":"12250","oa":"1","publication":"Limnology and Oceanography","main_file_link":[{"url":"https://doi.org/10.4319/lo.2012.57.2.0541","open_access":"1"}],"title":"Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations","author":[{"first_name":"Tom","id":"86424","last_name":"Shatwell","full_name":"Shatwell, Tom","orcid":"0000-0002-4520-7916"},{"first_name":"Andreas","last_name":"Nicklisch","full_name":"Nicklisch, Andreas"},{"first_name":"Jan","last_name":"Köhler","full_name":"Köhler, Jan"}],"intvolume":"        57","publication_identifier":{"issn":["0024-3590","1939-5590"]},"citation":{"din1505-2-1":"<span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Nicklisch, Andreas</span> ; <span style=\"font-variant:small-caps;\">Köhler, Jan</span>: Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations. In: <i>Limnology and Oceanography</i> Bd. 57, Wiley (2012), Nr. 2, S. 541–553","bjps":"<b>Shatwell T, Nicklisch A and Köhler J</b> (2012) Temperature and Photoperiod Effects on Phytoplankton Growing under Simulated Mixed Layer Light Fluctuations. <i>Limnology and Oceanography</i> <b>57</b>, 541–553.","chicago":"Shatwell, Tom, Andreas Nicklisch, and Jan Köhler. “Temperature and Photoperiod Effects on Phytoplankton Growing under Simulated Mixed Layer Light Fluctuations.” <i>Limnology and Oceanography</i> 57, no. 2 (2012): 541–53. <a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">https://doi.org/10.4319/lo.2012.57.2.0541</a>.","ieee":"T. Shatwell, A. Nicklisch, and J. Köhler, “Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations,” <i>Limnology and Oceanography</i>, vol. 57, no. 2, pp. 541–553, 2012, doi: <a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">10.4319/lo.2012.57.2.0541</a>.","van":"Shatwell T, Nicklisch A, Köhler J. Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations. Limnology and Oceanography. 2012;57(2):541–53.","ama":"Shatwell T, Nicklisch A, Köhler J. Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations. <i>Limnology and Oceanography</i>. 2012;57(2):541-553. doi:<a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">10.4319/lo.2012.57.2.0541</a>","apa":"Shatwell, T., Nicklisch, A., &#38; Köhler, J. (2012). Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations. <i>Limnology and Oceanography</i>, <i>57</i>(2), 541–553. <a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">https://doi.org/10.4319/lo.2012.57.2.0541</a>","mla":"Shatwell, Tom, et al. “Temperature and Photoperiod Effects on Phytoplankton Growing under Simulated Mixed Layer Light Fluctuations.” <i>Limnology and Oceanography</i>, vol. 57, no. 2, 2012, pp. 541–53, <a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">https://doi.org/10.4319/lo.2012.57.2.0541</a>.","short":"T. Shatwell, A. Nicklisch, J. Köhler, Limnology and Oceanography 57 (2012) 541–553.","chicago-de":"Shatwell, Tom, Andreas Nicklisch und Jan Köhler. 2012. Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations. <i>Limnology and Oceanography</i> 57, Nr. 2: 541–553. doi:<a href=\"https://doi.org/10.4319/lo.2012.57.2.0541\">10.4319/lo.2012.57.2.0541</a>, .","ufg":"<b>Shatwell, Tom/Nicklisch, Andreas/Köhler, Jan</b>: Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations, in: <i>Limnology and Oceanography</i> 57 (2012), H. 2,  S. 541–553.","havard":"T. Shatwell, A. Nicklisch, J. Köhler, Temperature and photoperiod effects on phytoplankton growing under simulated mixed layer light fluctuations, Limnology and Oceanography. 57 (2012) 541–553."},"language":[{"iso":"eng"}],"date_created":"2024-12-08T20:45:17Z","volume":57,"publication_status":"published","extern":"1","abstract":[{"lang":"eng","text":"We measured specific growth rates of Stephanodiscus minutulus, Nitzschia acicularis (diatoms), and Limnothrix redekei (cyanobacterium) under fluctuating and constant light in semi-continuous culture at 10°C, 15°C, and 20°C and under photoperiods of 6 h d−1 and 12 h d−1. Fluctuating light regimes simulated regular vertical mixing in lakes with a ratio of euphotic to mixed depth (zeu : zmix) of 1 and 0.5 on a cloudless day. Light fluctuations at zeu : zmix = 1 decreased the growth rates of S. minutulus, N. acicularis, and L. redekei by 18%, 33%, and 29%, respectively, compared to constant light at the same daily light supply. Temperature had no effect on this decrease. Halving zeu : zmix (simulating deep mixing) had the same effect on growth as halving the photoperiod, demonstrating that these factors are cumulative. We introduce a simple empirical factor to adjust growth rates measured under constant light to account for fluctuating light. This factor is independent of temperature and photoperiod, applies over a range of zeu : zmix, and accurately describes present and published growth rates of several species. We show how to account for temporal variability of the light supply at different temperatures and photoperiods when predicting growth rates of phytoplankton."}],"page":"541-553","year":"2012","user_id":"83781","department":[{"_id":"DEP8022"}],"status":"public","issue":"2","doi":"10.4319/lo.2012.57.2.0541","date_updated":"2024-12-09T08:42:06Z","quality_controlled":"1","type":"scientific_journal_article","publisher":"Wiley"},{"publication":"Journal of Plankton Research","_id":"12252","place":"Oxford","citation":{"chicago":"Nicklisch, Andreas, Tom Shatwell, and Jan Kohler. “Analysis and Modelling of the Interactive Effects of Temperature and Light on Phytoplankton Growth and Relevance for the Spring Bloom.” <i>Journal of Plankton Research</i> 30, no. 1 (2007): 75–91. <a href=\"https://doi.org/10.1093/plankt/fbm099\">https://doi.org/10.1093/plankt/fbm099</a>.","chicago-de":"Nicklisch, Andreas, Tom Shatwell und Jan Kohler. 2007. Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom. <i>Journal of Plankton Research</i> 30, Nr. 1: 75–91. doi:<a href=\"https://doi.org/10.1093/plankt/fbm099\">10.1093/plankt/fbm099</a>, .","ufg":"<b>Nicklisch, Andreas/Shatwell, Tom/Kohler, Jan</b>: Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom, in: <i>Journal of Plankton Research</i> 30 (2007), H. 1,  S. 75–91.","apa":"Nicklisch, A., Shatwell, T., &#38; Kohler, J. (2007). Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom. <i>Journal of Plankton Research</i>, <i>30</i>(1), 75–91. <a href=\"https://doi.org/10.1093/plankt/fbm099\">https://doi.org/10.1093/plankt/fbm099</a>","mla":"Nicklisch, Andreas, et al. “Analysis and Modelling of the Interactive Effects of Temperature and Light on Phytoplankton Growth and Relevance for the Spring Bloom.” <i>Journal of Plankton Research</i>, vol. 30, no. 1, 2007, pp. 75–91, <a href=\"https://doi.org/10.1093/plankt/fbm099\">https://doi.org/10.1093/plankt/fbm099</a>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Nicklisch, Andreas</span> ; <span style=\"font-variant:small-caps;\">Shatwell, Tom</span> ; <span style=\"font-variant:small-caps;\">Kohler, Jan</span>: Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom. In: <i>Journal of Plankton Research</i> Bd. 30. Oxford, Oxford University Press (OUP) (2007), Nr. 1, S. 75–91","bjps":"<b>Nicklisch A, Shatwell T and Kohler J</b> (2007) Analysis and Modelling of the Interactive Effects of Temperature and Light on Phytoplankton Growth and Relevance for the Spring Bloom. <i>Journal of Plankton Research</i> <b>30</b>, 75–91.","short":"A. Nicklisch, T. Shatwell, J. Kohler, Journal of Plankton Research 30 (2007) 75–91.","ama":"Nicklisch A, Shatwell T, Kohler J. Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom. <i>Journal of Plankton Research</i>. 2007;30(1):75-91. doi:<a href=\"https://doi.org/10.1093/plankt/fbm099\">10.1093/plankt/fbm099</a>","van":"Nicklisch A, Shatwell T, Kohler J. Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom. Journal of Plankton Research. 2007;30(1):75–91.","havard":"A. Nicklisch, T. Shatwell, J. Kohler, Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom, Journal of Plankton Research. 30 (2007) 75–91.","ieee":"A. Nicklisch, T. Shatwell, and J. Kohler, “Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom,” <i>Journal of Plankton Research</i>, vol. 30, no. 1, pp. 75–91, 2007, doi: <a href=\"https://doi.org/10.1093/plankt/fbm099\">10.1093/plankt/fbm099</a>."},"language":[{"iso":"eng"}],"date_created":"2024-12-08T20:47:30Z","publication_status":"published","volume":30,"intvolume":"        30","author":[{"first_name":"Andreas","last_name":"Nicklisch","full_name":"Nicklisch, Andreas"},{"orcid":"0000-0002-4520-7916","first_name":"Tom","full_name":"Shatwell, Tom","id":"86424","last_name":"Shatwell"},{"last_name":"Kohler","full_name":"Kohler, Jan","first_name":"Jan"}],"publication_identifier":{"eissn":["1464-3774"],"issn":["0142-7873"]},"main_file_link":[{"url":"https://doi.org/10.1093/plankt/fbm099"}],"title":"Analysis and modelling of the interactive effects of temperature and light on phytoplankton growth and relevance for the spring bloom","status":"public","year":"2007","user_id":"83781","department":[{"_id":"DEP8022"}],"abstract":[{"lang":"eng","text":"Global climate change alters the relationship between temperature and light in aquatic ecosystems, which is expected to affect the success of different phytoplankton species. To examine this, the interactions between temperature, photoperiod and light exposure (LE) (integral daily light supply) on specific growth rates were analysed for Limnothrix redekei, Planktothrix agardhii (cyanobacteria), Nitzschia acicularis and Stephanodiscus minutulus (diatoms). A model of factor interactions was developed based on new (P. agardhii and St. minutulus) and previously published laboratory studies. It describes the measured data with high precision. Temperature and photoperiod affect the parameters of the light-growth response curve differently, but these effects are the same for all species. The link between functions for temperature and photoperiod is more species-specific. Using meteorological data, the model developed here was used to study the interplay of these factors during a spring bloom in Lake Müggelsee (Berlin). It was found that while all three factors influenced phytoplankton growth, temperature and photoperiod were more important than LE. Both the intensities of the factors and the interactions between them influenced each species to a different degree. The results may help improve our understanding and ability to predict shifts in phytoplankton communities caused by weather patterns and climate change."}],"page":"75-91","extern":"1","publisher":"Oxford University Press (OUP)","type":"scientific_journal_article","date_updated":"2024-12-09T08:23:58Z","doi":"10.1093/plankt/fbm099","quality_controlled":"1","issue":"1"}]