Biovolume and biomass estimates of key diatoms in the Southern Ocean
Linear measurements of 31 Southern Ocean diatom species or genus groupings are presented and used in the derivation of species-specific biovolume, biomass and surface to volume ratios. Species measurements are in tune with summarised values in the literature and range from 2.6 to 2296 m in length an...
| Published in: | Aquatic Microbial Ecology |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Inter-Research
2007
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| Subjects: | |
| Online Access: | https://doi.org/10.3354/ame048295 http://ecite.utas.edu.au/49821 |
| Summary: | Linear measurements of 31 Southern Ocean diatom species or genus groupings are presented and used in the derivation of species-specific biovolume, biomass and surface to volume ratios. Species measurements are in tune with summarised values in the literature and range from 2.6 to 2296 m in length and 8.5 to 140 m in diameter. Average cell volume ranged from 63 to 1.43 205 m3 and biomass from 10 to 3686 pg C cell -1, the values being smallest in pennate shaped species and greatest in cylindrical centrics. The 31 species can be divided into 7 small, 12 intermediate and 12 large biomass contributors based on their cell volume and/or their surface to volume ratio. Carbon biomass estimates from biovolume equations are discussed and suggest that future work including large Southern Ocean species is warranted. Species-specific biomass values reported here should serve as a baseline for future analyses of major diatom carbon contributors in the generally high nutrient, low chlorophyll Southern Ocean. Inter-Research 2007. |
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