Search for dissertations about: "cyanotoxin"

Found 5 swedish dissertations containing the word cyanotoxin.

  2. 1. Monitoring the cellular phosphate status in bloom-forming cyanobacteria of the Baltic Sea

    Author : Sara Jonasson; Erik Söderbäck; Hans C. P. Matthjis; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cyanobacteria; Baltic Sea; phosphorus; cyanotoxin; nodularin; Plant physiology; Växtfysiologi;

    Abstract : In the Baltic Sea dense cyanobacterial blooms occur regularly during late summer. Since the dominant bloom-forming cyanobacteria, Nodularia spp. and Apanizomenon spp. are capable of fixing atmospheric dinitrogen, the macronutrient predominantly limiting their growth is phosphorus. READ MORE

  4. 2. Managing Eutrophic Waters in Artificial Recharge Plants : Cyanotoxin risk in Swedish freshwaters

    Author : Jing Li; Avdelningen för Teknisk vattenresurslära; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drinking water; cyanobacterial blooms; cyanotoxins; nutrients; total phosphorus; DIN TP; quick test kit;

    Abstract : In the last decades, the frequency and intensity of cyanobacterial blooms have been of increasing concern. They have become a direct threat to the drinking water supply by clogging filters, bringing odour and unpleasant taste to the treated water and worst of all, causing elevated cyanotoxins, which can be difficult to remove, yet lead to severe health issues. READ MORE

  5. 3. Benthic use of phytoplankton blooms: uptake, burial and biodiversity effects in a species-poor system

    Author : Agnes M. L. Karlson; Ragnar Elmgren; Carlo Heip; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biodiversity; ecosystem functioning; benthic-pelagic coupling; niche; resource partitioning; competition; eutrophication; cyanobacterial blooms; diatoms; invasive species; Baltic Sea; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

    Abstract : Animals living in marine sediments (the second largest habitat on earth) play a major role in global biogeochemical cycling. By feeding on organic matter from settled phytoplankton blooms they produce food for higher trophic levels and nutrients that can fuel primary production. READ MORE

  6. 4. Adaptive and non-adaptive responses to toxin-producing cyanobacteria in water fleas

    Author : Alexander Hegg; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Organisms regularly encounter stressful conditions that negatively affects their fitness. One way to minimize these negative effects is to use cues from the environment in order to develop an appropriate phenotype. Many populations of water fleas (Daphnia spp. READ MORE

  7. 5. Biosensor-based Methods for Detection of Microcystins as Early Warning Systems

    Author : Lesedi Lebogang; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microcystins; Drinking water; Adda-specific monoclonal antibodies; Biosensors; Capacitive; Amperometric; Flow-ELISA; Microcontact imprinting;

    Abstract : Cyanobacteria blooms are a water menace since they produce potent toxins that have been implicated in poisonings and deaths of humans and animals after consumption or contact with cyanotoxin-contaminated water. Of particular concern are cyanotoxins called microcystins, which are hepatotoxic cyclic peptides known to promote development of liver tumors in humans and animals. READ MORE