Bathmann, Ulrich; Peinert, Rolf; Noji, Thomas T; von Bodungen, Bodo (2006): Particle flux measured on deep sea sediment trap VP-2_trap (Appendix A2.7) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.527975, Supplement to: Bathmann, U et al. (1990): Pelagic origin and fate of sedimenting particles in the Norwegian Sea. Progress in Oceanography, 24(1-4), 117-125, https://doi.org/10.1016/0079-6611(90)90024-V
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Abstract:
A 17 month record of vertical particle flux of dry weight, carbonate and organic carbon were 25.8, 9.4 and 2.4g/m**2/y, respectively. Parallel to trap deployments, pelagic system structure was recorded with high vertical and temporal resolution.
Within a distinct seasonal cycle of vertical particle flux, zooplankton faecal pellets of various sizes, shapes and contents were collected by the traps in different proportions and quantities throughout the year (range: 0-4,500 10**3/m**2/d). The remains of different groups of organisms showed distinct seasonal variations in abundance. In early summer there was a small maximum in the diatom flux and this was followed by pulses of tinntinids, radiolarians, foraminiferans and pteropods between July and November.
Food web interactions in the water column were important in controlling the quality and quantity of sinking materials. For example, changes in the population structure of dominant herbivores, the break-down of regenerating summer populations of microflagellates and protozooplankton and the collapse of a pteropod dominated community, each resulted in marked sedimentation pulses.
These data from the Norwegian Sea indicate those mechanisms which either accelerate or counteract loss of material via sedimentation. These involve variations in the structure of the pelagic system and they operatè on long (e.g. annual plankton succession) and short (e.g. the end of new production, sporadic grazing of swarm feeders) time scales. Connecting investigation of the water column with a high resolution in time in parallel with drifting sediment trap deployments and shipboard experiments with the dominant zooplankters is a promising approach for giving a better understanding of both the origin and the fate of material sinking to the sea floor.
Project(s):
Biological Oceanography @ AWI (AWI_BioOce)
Coverage:
Latitude: 67.616667 * Longitude: 5.826667
Date/Time Start: 1986-07-02T00:00:00 * Date/Time End: 1987-02-04T00:00:00
Minimum Elevation: -700.0 m * Maximum Elevation: -700.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Geocode | |||
| 2 | Date/time end | Date/time end | Bathmann, Ulrich | |||
| 3 | Sample code/label | Sample label | Bathmann, Ulrich | |||
| 4 | Duration, number of days | Duration | days | Bathmann, Ulrich | ||
| 5 | Flux of total mass | Flux tot | mg/m2/day | Bathmann, Ulrich | ||
| 6 | Lithogenic, flux | Litho flux | mg/m2/day | Bathmann, Ulrich |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
55 data points