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Träfflista för sökning "WFRF:(Andersen Peter M.) ;lar1:(cth)"

Search: WFRF:(Andersen Peter M.) > Chalmers University of Technology

  • Result 1-3 of 3
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1.
  • 2019
  • Journal article (peer-reviewed)
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2.
  • Dinasquet, Julie, et al. (author)
  • Cascading effects of the ctenophore Mnemiopsis leidyi on the planktonic food web in a nutrient-limited estuarine system
  • 2012
  • In: Marine Ecology Progress Serie. - : Inter-Research Science Center. - 0171-8630 .- 1616-1599. ; 460, s. 49-61
  • Journal article (peer-reviewed)abstract
    • Increasing biomasses of gelatinous zooplankton presumably have major implications for the structure and function of marine food webs at large; however, current data on lower trophic levels are scarce, as most studies have focused on the immediate effects on zooplankton and fish larvae only. We examined the short-term impact of larvae and adults of the invasive ctenophore Mnemiopsis leidyi on a summer planktonic food web in the estuarine southern Baltic Sea, with special emphasis on the microbial loop. Grazing by M. leidyi reduced the mesozooplankton biomass, followed by increased dinoflagellate biomass in treatments with M. leidyi. While chlorophyll a increased most in the treatments with M. leidyi, small phytoplankton and ciliates decreased in all treatments. M. leidyi had a slight effect on bacterial abundance, but not on bacterial production, ectoenzymatic activities, or community composition. Undetectable levels of phosphate and a gradual accumulation of dissolved organic carbon during the experiment suggested a malfunctioning microbial loop scenario. The experiment shows that direct and indirect short-term effects of M. leidyi on the estuarine food web are limited to higher trophic levels and indicates that top-down and bottom-up consequences of M. leidyi expansions on the microbial loop will likely depend on local nutrient conditions.
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3.
  • Gommenginger, Christine, et al. (author)
  • SEASTAR: A mission to study ocean submesoscale dynamics and small-scale atmosphere-ocean processes in coastal, shelf and polar seas
  • 2019
  • In: Frontiers in Marine Science. - : Frontiers Media SA. - 2296-7745. ; 6:JUL
  • Journal article (other academic/artistic)abstract
    • High-resolution satellite images of ocean color and sea surface temperature reveal an abundance of ocean fronts, vortices and filaments at scales below 10 km but measurements of ocean surface dynamics at these scales are rare. There is increasing recognition of the role played by small scale ocean processes in ocean-atmosphere coupling, upper-ocean mixing and ocean vertical transports, with advanced numerical models and in situ observations highlighting fundamental changes in dynamics when scales reach 1 km. Numerous scientific publications highlight the global impact of small oceanic scales on marine ecosystems, operational forecasts and long-term climate projections through strong ageostrophic circulations, large vertical ocean velocities and mixed layer re-stratification. Small-scale processes particularly dominate in coastal, shelf and polar seas where they mediate important exchanges between land, ocean, atmosphere and the cryosphere e.g. freshwater, pollutants. As numerical models continue to evolve towards finer spatial resolution and increasingly complex coupled atmosphere-wave-ice-ocean systems, modern observing capability lags behind, unable to deliver the high-resolution synoptic measurements of total currents, wind vectors and waves needed to advance understanding, develop better parameterizations and improve model validations, forecasts and projections. SEASTAR is a satellite mission concept that proposes to directly address this critical observational gap with synoptic two-dimensional imaging of total ocean surface current vectors and wind vectors at 1 km resolution and coincident directional wave spectra. Based on major recent advances in squinted along-track Synthetic Aperture Radar interferometry, SEASTAR is an innovative, mature concept with unique demonstrated capabilities, seeking to proceed towards spaceborne implementation within Europe and beyond.
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  • Result 1-3 of 3
Type of publication
journal article (3)
Type of content
peer-reviewed (2)
other academic/artistic (1)
Author/Editor
Kelly, Daniel (1)
Bengtsson-Palme, Joh ... (1)
Nilsson, Henrik (1)
Kelly, Ryan (1)
Li, Ying (1)
Moore, Matthew D. (1)
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Liu, Fang (1)
Zhang, Yao (1)
Jin, Yi (1)
Raza, Ali (1)
Rafiq, Muhammad (1)
Zhang, Kai (1)
Khatlani, T (1)
Kahan, Thomas (1)
Sörelius, Karl, 1981 ... (1)
Batra, Jyotsna (1)
Roobol, Monique J (1)
Backman, Lars (1)
Yan, Hong (1)
Schmidt, Axel (1)
Lorkowski, Stefan (1)
Thrift, Amanda G. (1)
Zhang, Wei (1)
Hammerschmidt, Sven (1)
Patil, Chandrashekha ... (1)
Wang, Jun (1)
Pollesello, Piero (1)
Conesa, Ana (1)
El-Esawi, Mohamed A. (1)
Zhang, Weijia (1)
Li, Jian (1)
Marinello, Francesco (1)
Frilander, Mikko J. (1)
Wei, Pan (1)
Badie, Christophe (1)
Zhao, Jing (1)
Li, You (1)
Bansal, Abhisheka (1)
Rahman, Proton (1)
Parchi, Piero (1)
Polz, Martin (1)
Eriksson, Leif, 1970 (1)
Ijzerman, Adriaan P. (1)
Subhash, Santhilal, ... (1)
Quinn, Terence J. (1)
Uversky, Vladimir N. (1)
Gemmill, Alison (1)
Zhang, Yi (1)
Meule, Adrian (1)
Vohl, Marie-Claude (1)
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University
University of Gothenburg (2)
Umeå University (1)
Uppsala University (1)
Halmstad University (1)
Stockholm University (1)
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Lund University (1)
Karolinska Institutet (1)
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Language
English (3)
Research subject (UKÄ/SCB)
Natural sciences (3)
Medical and Health Sciences (1)

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