Sökning: "nutrient limitation"

Visar resultat 1 - 5 av 27 uppsatser innehållade orden nutrient limitation.

  1. 1. The Role of Functional Traits and Trade-offs in Seasonal Succession of Phytoplankton Community Structuring : A numerical investigation of resource acquisition traits of Lake Constance

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Ayesha Nagahage; [2024]
    Nyckelord :Phytoplankton; resource acquisition; traits; trade-off; resource limitation;

    Sammanfattning : Long-term ecological research in deep lakes offers valuable insights into understanding changes in trophic states and organization of phytoplankton assemblages. Utilizing five decades of phytoplankton taxonomic trait data from pre-alpine Lake Constance, a confirmed negative relationship was found between phosphate and light affinity at the annual community trait level. LÄS MER

  3. 2. SOIL GROSS NITROGEN MINERALISATION AND FOREST GROWTH IN FOUR HEMIBOREAL FOREST STANDS IN SOUTHWEST SWEDEN

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Linnéa Eriksson; [2023-04-20]
    Nyckelord :soil C:N; forest production; 15N isotope dilution; gross N mineralisation; ammonium; soil carbon; soil nitrogen; root exudates; stoichiometric decomposition; boreal forests; priming; microbial C limitation;

    Sammanfattning : Boreal and temperate forests together make up the largest terrestrial net C sink in the world. They take up carbon dioxide (CO2) from the atmosphere and store it in plant biomass and soil as they grow, making them crucial in mitigating global climate change. LÄS MER

  4. 3. P-cycling in sub-Arctic lakes – the importance of sediment release and retention

    Magister-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Hanna Ravry; [2022]
    Nyckelord :phosphorus; sediment; oligotrophication;

    Sammanfattning : Oligotrophication is generally caused by a decreased nutrient availability, usually due to phosphorous limitation. This is a phenomenon impacting the entire food web and at worst causing cascading alterations within an ecosystem. Lakes of the Northern Hemisphere have lately been documented to be subjected to oligotrophication (e.g. LÄS MER

  5. 4. Characterization and optimization of Rhodosporidium toruloides for production of lipids

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Niharika Singh; [2021]
    Nyckelord :chemical engineering; oily yeasts; lipids; nitrogen limitation; Technology and Engineering;

    Sammanfattning : Oleaginous microorganisms provide an opportunity to produce oils without the use of arable land for cultivation of oil-containing plants. Oleaginous microorganisms are also capable of storing products of pharmaceutical interest alongside storing polymers, which could open new opportunities in the bioplastic industry. LÄS MER

  7. 5. Uttrycksmönster av kiseltransportörgener hos Chaetoceros affinis med realtids-PCR

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Författare :Nikolaj Gubonin; [2021]
    Nyckelord :diatom; SIT; kisel; realtids-PCR; relativt genuttryck; konkurrens;

    Sammanfattning : Diatoms are photosynthetic protists that reside in aquatic environments. A unique feature of diatoms is their cell wall structure made of silica. Silicon is a limiting nutrient for diatoms. The bioavailable form of silicon in aquatic environments is silicic acid. LÄS MER