Browsing School of Science by Author "Ott, J"

Now showing items 1-3 of 3

Ciliate-generated advective seawater transport supplies chemoautotrophic ectosymbionts

Vopel, K; Pohn, M; Sorgo, A; Ott, J (Inter-Research, 2001)

Variations of [O2] and [H2S] in seawater surrounding laboratory reared sessile ciliates with ectosymbiotic chemoautotrophic bacteria were studied at high spatial and temporal resolutions using amperometric microsensors. ...
Microclimate of the brown alga Feldmannia caespitula interstitium under zero-flow conditions

Pohn, M; Vopel, K; Grunberger, E; Ott, J (Inter Research, 2001)

The microclimate of the brown alga Feldmannia caespitula (J. Agardh) Knoepffler-Peguy interstitium was studied using microelectrode techniques. Zero water flow and irradiances of 170 and 1500 mu mol photons m(-2) s(-1) ...
Wave-induced H2S flux sustains a chemoautotrophic symbiosis

Vopel, K; Thistle, D; Ott, J; Bright, M; Roy, H (American Society of Limnology and Oceanography (ASLO), 2005)

Symbioses involving sulfur-oxidizing bacteria and invertebrate hosts require a source of reduced sulfur, a source of O-2, and transport mechanisms that ensure them a supply of both. We investigated these mechanisms using ...