Nutrient‐ and light‐limited growth of Thalassiosira fluviatilis in continuous culture, with implications for phytoplankton growth in the ocean1
Year: 1980
Type: article
Abstract: The marine diatom Thalassiosira fluviatilis was grown in a continuous culture system at 20°C on a 12:12 L:D cycle over a series of nutrient‐ and light‐limited dilution rates. Bannister’s theoretical model describing nutrient‐saturated growth gave an excellent fit to the light‐limited data. A simple extension of the model allows description of nutrient‐limited growth as well. Dark carbon loss rates were in the range 10–20% of daytime production rates at dilution rates ⩾0.25 d−1. The relationship between Chl a:C ratios and dilution rate was linear under nutrient limitation and independent of the type of limiting nutrient. Productivity indices under nutrient limitation were found to be a hyperbolic function of dilution rate. N:C ratios were linearly correlated with dilution rate under both light and nutrient limitation, but with the regressions having opposite signs.
Source: Limnology and Oceanography
Authors: Edward A. Laws, T. T. Bannister
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Life below water
Open Access status: bronze
OpenAlex ID: W2172238027