title: Manometric Assessment of interstitial microalgae production in two estuarine sediments.
abstract: The potential production of estuarine interstitial microalgae from two tidal flats differing in sediment texture was determined manometrically. Sediment cores from the Southbeach tidal flat showed a maximum amount of productivity in the lower intertidal zone whereas sediment cores from Sally's Bend showed no production in this zone. The upper cm3of sediment from both tidal flats had a higher amount of gross potential production than subsurface core sections. the sandy substratum from Southbeach had an estimated gross annual production of 275-325 g C m-2yr-1whereas the silty substratum of Sally's Bend had an estimated value of 0-125 g C m-2yr-1. Respiration/Photosynthesis (R/P) ratios indicate that respiration often exceeds photosynthesis on the Sally's Bend tidal flat.
authors.affiliation: Department of Botany, Oregon State University, 97331, Corvallis, Oregon, USA.
authors.forename: Raymond Z
authors.initials: RZ
authors.lastname: Riznyk
authors.affiliation: Department of Botany, Oregon State University, 97331, Corvallis, Oregon, USA.
authors.forename: Harry K
authors.initials: HK
authors.lastname: Phinney