Digitala Vetenskapliga Arkivet

Change search
Refine search result
12 51 - 52 of 52
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 51. Weyhenmeyer, G A
    The influence of stratification on the amount and distribution of different settling particles in Lake Erken1996In: Canadian Journal of Fisheries and Aquatic Sciences, ISSN 0706-652X, E-ISSN 1205-7533, Vol. 53, no 6, p. 1254-1262Article in journal (Refereed)
    Abstract [en]

    Settling particles, especially settling organic particles, are important for the cycling of nutrients and contaminants because of their high adsorptive capacities. Therefore, the amount, distribution, and sources of settling particles were studied in Lake Erken, a moderately deep (mean depth 9 m, maximum depth 21 m) dimictic lake in central Sweden. The amount of settling particles was up to 45 times higher in hypolimnetic sedimentation traps than in epilimnetic traps during stratification (mean 7.0, median 5.2). However, immediately after the end of stratification, settling particles were almost evenly distributed in the water column. The same sedimentation pattern was observed for resuspended particles, whereas the flux of primary particles reaching the hypolimnion was not affected by stratification. These results indicate that during stratification, resuspended particles in Lake Erken originate in the hypolimnion where they remain. Because surface waves cannot cause sediment resuspension in the moderately deep hypolimnion of Lake Erken, internal seiches are suggested to be responsible for the high amount of settling particulate matter in the hypolimnion during stratification.

  • 52. Zhang, Chen
    et al.
    Brett, Michael T.
    Nielsen, Jens M.
    Arhonditsis, George B.
    Ballantyne, Ashley P.
    Carter, Jackie L.
    Kann, Jacob
    Müller-Navarra, Dörthe C.
    Schindler, Daniel E.
    Stockwell, Jason D.
    Winder, Monika
    Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
    Beauchamp, David A.
    Physiological and nutritional constraints on zooplankton productivity due to eutrophication and climate change predicted using a resource-based modeling approach2022In: Canadian Journal of Fisheries and Aquatic Sciences, ISSN 0706-652X, E-ISSN 1205-7533, Vol. 79, no 3, p. 472-486Article in journal (Refereed)
    Abstract [en]

    Emerging evidence suggests that zooplankton production is affected by physiological and nutritional constraints due to climate change and eutrophication, which in turn could have broad implications for food-web dynamics and fisheries production. In this study, we developed a resource-based zooplankton production dynamics model that causally links freshwater cladoceran and copepod daily production-to-biomass (P/B) ratios with water temperature, phytoplankton biomass and community composition, and zooplankton feeding selectivity. This model was used to evaluate constraints on zooplankton growth under four hypothetical scenarios: involving natural plankton community seasonal succession; lake fertilization to enhance fisheries production; eutrophication; and climatic warming. Our novel modeling approach predicts zooplankton production is strongly dependent on seasonal variation in resource availability and quality, which results in more complex zooplankton dynamics than predicted by simpler temperature-dependent models. For mesotrophic and hypereutrophic lakes, our study suggests that the ultimate control over zooplankton P/B ratios shifts from physiological control during colder periods to strong resource control during warmer periods. Our resource-based model provides important insights into the nature of biophysical control of zooplankton under a changing climate that has crucial implications for food web energy transfer and fisheries production.

12 51 - 52 of 52
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf