Logo: to the web site of Uppsala University

uu.sePublikasjoner fra Uppsala universitet
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
On the germination of the akinete-forming cyanobacterium Gloeotrichia echinulata, in Lake Erken, Sweden
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Teknisk-naturvetenskapliga fakulteten, Biologiska sektionen, Institutionen för evolutionsbiologi, Limnologi.
1999 Inngår i: Algological Studies, Vol. 94, s. 175-180Artikkel i tidsskrift (Fagfellevurdert) Published
sted, utgiver, år, opplag, sider
1999. Vol. 94, s. 175-180
Identifikatorer
URN: urn:nbn:se:uu:diva-90423OAI: oai:DiVA.org:uu-90423DiVA, id: diva2:162775
Tilgjengelig fra: 2003-05-14 Laget: 2003-05-14bibliografisk kontrollert
Inngår i avhandling
1. Studies on the Life Cycles of Akinete Forming Cyanobacteria
Åpne denne publikasjonen i ny fane eller vindu >>Studies on the Life Cycles of Akinete Forming Cyanobacteria
2003 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Cyanobacteria which can form resting cells (in this case akinetes) are common in meso-eutrophic lakes in temperate regions, often dominating the phytoplankton communities during summer. The life cycles of akinete-forming cyanobacteria has been studied with Gloeotrichia echinulata as a model organism. Anabaena and Aphanizomenon were also included in a migration study. The focus of this thesis has been the factors influencing the processes of germination and subsequent growth, the factors influencing migration from the sediment, and the amount of growth occurring in the water.

Germination of G. echinulata was strongly favoured by light, and recruitment was highest from organic-rich sediments in shallow, sheltered littoral areas, between 0-3 m. Recruitment of Anabaena and Aphanizomenon was less light dependent, yet the highest recruitment occurred from shallow sediments (0-2 m). This means that organic-rich sediments (0-3 m) in shallow areas are the most important seed-banks of akinete-forming cyanobacteria. The inocula contributed only to a minor extent to the maximum pelagic populations. 4% for G. echinulata in the mesotrophic Lake Erken, and 0.03% for both Anabaena and Aphanizomenon in the eutrophic Lake Limmaren. This implies that processes of growth and division in the water are important for the maximum size of the pelagic population. Prolonged recruitment from the sediment strongly promoted establishment of the species in the water, especially G. echinulata.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2003. s. 39
Serie
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 856
Emneord
Biology, limnology, akinete, germination, recruitment, Biologi
HSV kategori
Forskningsprogram
limnologi
Identifikatorer
urn:nbn:se:uu:diva-3432 (URN)91-554-5665-0 (ISBN)
Disputas
2003-06-04, Limnologens föreläsningssal, Norbyvägen 20, Uppsala, 10:00
Opponent
Veileder
Tilgjengelig fra: 2003-05-14 Laget: 2003-05-14bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 744 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf