Chaetoceros resting spores in Quaternary sediments of ODP Leg 119 sites ...
During Leg 119 of the Ocean Drilling Program (ODP), Quaternary sediments of the Southern Ocean were examined for the presence and abundance of Chaetoceros resting spores. Six drill sites were occupied along the Kerguelen Plateau. An additional five drill sites were clustered within Prydz Bay, Antarc...
| Main Author: | |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
1991
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.728517 https://doi.pangaea.de/10.1594/PANGAEA.728517 |
| Summary: | During Leg 119 of the Ocean Drilling Program (ODP), Quaternary sediments of the Southern Ocean were examined for the presence and abundance of Chaetoceros resting spores. Six drill sites were occupied along the Kerguelen Plateau. An additional five drill sites were clustered within Prydz Bay, Antarctica. Chaetoceros resting spores were present at all sites examined. These resting spore assemblages were comprised primarily of Chaetoceros neglectus and several unidentified Chaetoceros species. Resting spore assemblages accounted for approximately 20% of the total diatom assemblage (ranging from 0% to 91.4% of any given sample).Quantitative estimates of resting spores demonstrated considerable downcore abundance fluctuations, ranging from 0 to 1.82*10*9 valves/g sediment. The highest spore production rates (3.75*10**12 spores/cm/yr) were found on the northern Kerguelen Plateau (Sample 119-736B-1H-3,35-37 cm). A lack of adequate chronological control at all sites prevented proper between-core comparisons. Mean ... : Supplement to: Stockwell, Dean A (1991): Distribution of Chaetoceros resting spores in the Quaternary sediments from Leg 119. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 599-610 ... |
|---|