Rudyakov, Yury A; Vereshchaka, Alexander L; Vinogradov, Georgy M; Geptner, Mikhail V (1990): Biomass of seston in the benthic layer of the Southwestern Indian Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.758809, Supplement to: Rudyakov, YA et al. (1990): Seston biomass in the benthic layer of the Southwestern Indian Ocean. Oceanology, 30(1), 85-89
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Abstract:
At stations to 1530 m depth in the Mozambique Channel and on the Saya-de-Malha and Walters banks seston biomass 2 m above the bottom was lower than at 30 m. Above the Walters shoal this difference was 13.2 mg/m**3 and was not equal to zero for P < 0.001. These results contradict previous ideas of biomass increase in benthic layers. The most likely cause of the observed impoverishment of plankton may be predominant consumption of living zooplankton component of seston by bottom and near-bottom predators. In the area of the Walters shoal this consumption is estimated as being about 300 mg/m**2 per day. Animals inhabiting this area live mainly on plankton brought in by horizontal advection, so that existence of faunal assemblages even on shallow-water submarine elevations is supported not mainly by local photosynthesis, but by primary production of surrounding waters.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -26.592556 * Median Longitude: 43.036167 * South-bound Latitude: -33.966667 * West-bound Longitude: 35.200000 * North-bound Latitude: -12.666667 * East-bound Longitude: 48.400000
Date/Time Start: 1988-11-11T12:40:00 * Date/Time End: 1988-12-23T20:20:00
Event(s):
Vy17-2593 * Latitude: -12.666667 * Longitude: 48.400000 * Date/Time Start: 1988-11-11T12:40:00 * Date/Time End: 1988-11-11T13:11:00 * Elevation Start: -70.0 m * Elevation End: -80.0 m * Location: Indian Ocean * Method/Device: Towed zooplankton net (HAI)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Rudyakov, YA; Vereshchaka, AL; Vinogradov, GM et al. (1990): (Table 1) Biomass of seston at distances of 2 m and 30 m above the bottom of the Walters Bank, Indian Ocean. https://doi.org/10.1594/PANGAEA.758802
- Rudyakov, YA; Vereshchaka, AL; Vinogradov, GM et al. (1990): (Table 2) Biomass of seston at distances of 2 m and 30 m above the bottom in different areas of the Mozambique Channel, Indian Ocean. https://doi.org/10.1594/PANGAEA.758808