English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We conducted a series of dilution bioassay experiments to determine whether limitation of bacterial growth by nutrient elements (N and P) and organic substrates differs in marine and freshwater pelagic ecosystems. We also conducted Landry-Hassett dilution gradient experiments to assess whether rates of bacterivory differ substantially in the 2 ecosystem types. P addition stimulated significant (p 0.05) for lake and marine systems sampled although data were extremely limited. Our results support the emerging view that mineral limitation of bacterial growth rates (as well as limitation by organic substrates) is widespread in both marine and freshwater ecosystems. However, differences in degree of response to enrichment and in growth rates in unenriched treatments in our marine and freshwater experiments suggested that severity of nutrient limitation of growth in situ was considerably higher for freshwater bacteria than for marine bacteria. While our study was limited in scope and more data are clearly needed, based on these results we propose several hypotheses for the apparent difference in severity of nutrient limitation of bacteria in lakes and oceans.

Nutrient limitation of bacterial growth and rates of bacterivory in lakes and oceans: a comparative study