Potenciāli toksiskās zilaļģes Gleotrichia echinulata masveida savairošanās fenomens Alūksnes ezerā

6533b82bfe1ef96bd128dae9

RESEARCH PRODUCT

Potenciāli toksiskās zilaļģes Gleotrichia echinulata masveida savairošanās fenomens Alūksnes ezerā

Evija Keserovska

subject

Gleotrichia echinulata sedimenti Bioloģija aļģu ziedēšana Alūksnes ezers

description

Darbs sniedz priekšstatu par Alūksnes ezera fitoplanktona sastāvu un potenciāli toksiskās zilaļģes Gleotrichia echinulata masveida savairošanos Alūksnes ezerā. Pētījuma dati 10 stacijās iegūti no 2014. gada 13. maija līdz 2. oktobrim un 2015. gada 21. aprīlī. Darba mērķis ir noteikt Gleotrichia echinulata koloniju skaitu un noskaidrot, kā tā ietekmē pārējo Alūksnes ezera fitoplanktonu. Tika secināts, ka iekšezerā ir augstākas barības vielu koncentrācijas nekā atklātajā Alūksnes ezerā. Maksimālais Gleotrichia echinulata daudzums epilimnijā novērots 2014. gada 30. jūlijā, sedimentos visvairāk koloniju konstatētas iekšezerā (4. stacijā). Noskaidrots, ka Gleotrichia echinulata ar barības vielu pārnesi no sedimentiem oligotrofos apstākļos veicina pārējā fitoplanktona biomasu pieaugumu.

year	journal	country	edition	language
2015-01-01

https://dspace.lu.lv/dspace/handle/7/28553

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