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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2003
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| Online Access: | https://doi.org/10.1594/PANGAEA.740034 |
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| _version_ | 1867169501153329152 |
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| author | Gorsky, G Le Borgne, Robert Picheral, Marc Stemmann, Lars |
| author_facet | Gorsky, G Le Borgne, Robert Picheral, Marc Stemmann, Lars |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Marine snow (MS) distribution from the surface to 1000 m depth was determined in the equatorial Pacific using the underwater video profiler during the Etude du Broutage en Zone Equatoriale cruise in fall 1996. The latitudinal transect was carried out at 17 stations along the 180° meridian from 8°S to 8°N during a cold phase of El Niño-Southern Oscillation. Higher MS concentrations were found below the equatorial zone than poleward. At the equator the estimated integrated MS carbon/m**2 in the upper kilometer was 5.7 g/m**2, while both southward and northward (between 1° and 8°) the mean integrated MS carbon was about 2.7 g/m**2. In the upper 50 m the MS carbon was twofold lower than the combined carbon of autotrophic and heterotrophic protists and four times lower than the mesozooplankton carbon biomass, both measured concurrently during the cruise. Different water bodies had different MS content. The highest concentrations were found in the South Equatorial Current, the South Equatorial Counter Current, and the North Equatorial Countercurrent. Tropical waters at the south in the South Subsurface Countercurrents and the warm northern superficial waters had the lowest MS biomass. Mechanistically, a latitudinal "conveyor belt", a poleward divergence of upwelled waters that return to the equator after being downwelled at north and south convergent zones, may partially explain the vertical distribution of particulate matter observed during the studied period. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_740034 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Vertical distribution of suspended aggregates in the equatorial Pacific Gorsky, G Le Borgne, Robert Picheral, Marc Stemmann, Lars Biogeochemical Processes in the Oceans and Fluxes; EBENE; EBENE_PVM01; EBENE_PVM02; EBENE_PVM03; EBENE_PVM04; EBENE_PVM05; EBENE_PVM06; EBENE_PVM07; EBENE_PVM08; EBENE_PVM09; EBENE_PVM10; EBENE_PVM11; EBENE_PVM12; EBENE_PVM13; EBENE_PVM14; EBENE_PVM15; EBENE_PVM16; EBENE_PVM17; EBENE_PVM18; EBENE_PVM19; EBENE_PVM20; EBENE_PVM21; EBENE_PVM22; EBENE_PVM23; EBENE_PVM24; EBENE_PVM25; EBENE_PVM26; EBENE_PVM27; EBENE_PVM28; EBENE_PVM29; EBENE_PVM30; EBENE_PVM31; EBENE_PVM32; JGOFS; Joint Global Ocean Flux Study; L Atalante; PROOF; Underwater video profiler; UVP Marine snow (MS) distribution from the surface to 1000 m depth was determined in the equatorial Pacific using the underwater video profiler during the Etude du Broutage en Zone Equatoriale cruise in fall 1996. The latitudinal transect was carried out at 17 stations along the 180° meridian from 8°S to 8°N during a cold phase of El Niño-Southern Oscillation. Higher MS concentrations were found below the equatorial zone than poleward. At the equator the estimated integrated MS carbon/m**2 in the upper kilometer was 5.7 g/m**2, while both southward and northward (between 1° and 8°) the mean integrated MS carbon was about 2.7 g/m**2. In the upper 50 m the MS carbon was twofold lower than the combined carbon of autotrophic and heterotrophic protists and four times lower than the mesozooplankton carbon biomass, both measured concurrently during the cruise. Different water bodies had different MS content. The highest concentrations were found in the South Equatorial Current, the South Equatorial Counter Current, and the North Equatorial Countercurrent. Tropical waters at the south in the South Subsurface Countercurrents and the warm northern superficial waters had the lowest MS biomass. Mechanistically, a latitudinal "conveyor belt", a poleward divergence of upwelled waters that return to the equator after being downwelled at north and south convergent zones, may partially explain the vertical distribution of particulate matter observed during the studied period. |
| title | Vertical distribution of suspended aggregates in the equatorial Pacific |
| topic | Biogeochemical Processes in the Oceans and Fluxes; EBENE; EBENE_PVM01; EBENE_PVM02; EBENE_PVM03; EBENE_PVM04; EBENE_PVM05; EBENE_PVM06; EBENE_PVM07; EBENE_PVM08; EBENE_PVM09; EBENE_PVM10; EBENE_PVM11; EBENE_PVM12; EBENE_PVM13; EBENE_PVM14; EBENE_PVM15; EBENE_PVM16; EBENE_PVM17; EBENE_PVM18; EBENE_PVM19; EBENE_PVM20; EBENE_PVM21; EBENE_PVM22; EBENE_PVM23; EBENE_PVM24; EBENE_PVM25; EBENE_PVM26; EBENE_PVM27; EBENE_PVM28; EBENE_PVM29; EBENE_PVM30; EBENE_PVM31; EBENE_PVM32; JGOFS; Joint Global Ocean Flux Study; L Atalante; PROOF; Underwater video profiler; UVP |
| url | https://doi.org/10.1594/PANGAEA.740034 |