■it- Palmer LTER: The first profiles of marine snow
Various, and at times contradictory, conclusions have beendrawn regarding the mo es of vertical export of particu late material during and after blooms in the southern oceans. For example, Wefer and Fischer (1991) reported that sedi ment-trap samples were dominated by fecal pellets, indicat ing that...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.8563 http://pal.lternet.edu/docs/bibliography/Public/025lterc.pdf |
| Summary: | Various, and at times contradictory, conclusions have beendrawn regarding the mo es of vertical export of particu late material during and after blooms in the southern oceans. For example, Wefer and Fischer (1991) reported that sedi ment-trap samples were dominated by fecal pellets, indicat ing that zooplankton grazing dominated the packaging and removal of phytoplankton. In contrast, Von Bodungen et al. (1986) reported samples composed of loosely aggregated phy toplankton material, and Smetacek (1985) proposed that as nutrients are consumed, the phytoplankton enter a senescent phase and settle rapidly to the seafloor to await resuspension and more favorable nutrient conditions the following year. Leventer (1991) confirmed this hypothesis using sediment-trap samples from the Antarctic Peninsula area; Leventer's Aggregates per liter |
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