Sediment was fertilized with f/2 algal growth medium
in situ and in the laboratory daily for one week. Sampling
strategy incorporated two intertidal heights and two sites.
Experiments were done in August and January. No significant
changes in chlorophyll a or diatom community structure
were observed after ten days of growth in either the
field or the laboratory experiments. Laboratory experiments
also showed slightly increased gross primary production
(p<.10) and increased oxygen uptake (p<.01) associated
with nutrient enrichment.
Unlike planktonic diatoms, sediment-associated diatoms
in Yaquina Bay show no nutrient limitation. Thus other
factors probably control diatom growth in these sediments
such as light intensity, photoperiod, intertidal height,
sediment stability and organic content, and animal consumption. / Graduation date: 1982
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28908 |
| Date | 18 May 1981 |
| Creators | Cardon, Nanette Clark |
| Contributors | Phinney, Harry K. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
Page generated in 0.0053 seconds