Mesozooplankton Community Composition Controls Fecal Pellet Flux and Remineralization Depth in the Southern Ocean
نویسندگان
چکیده
منابع مشابه
Mesozooplankton Community Structure and Grazing Impact in the Polar Frontal Zone of the Southern Ocean
ii ABSTRACT Mesozooplankton community structure and grazing impact in the Polar Frontal Zone (PFZ) of the Southern Ocean were investigated during two cruises of the South African During the first cruise (MOEVS I), a meso-scale oceanographic grid survey was conducted in the upstream region of the Prince Edward Islands (PEI) in austral autumn (April) 2001. Mesozooplankton samples, collected using...
متن کاملCopepod faecal pellet transfer through the meso- and bathypelagic layers in the Southern Ocean in spring
The faecal pellets (FPs) of zooplankton can be important vehicles for the transfer of particulate organic carbon (POC) to the deep ocean, often making large contributions to carbon sequestration. However, the routes by which these FPs reach the deep ocean have yet to be fully resolved. We address this by comparing estimates of copepod FP production to measurements of copepod FP size, shape, and...
متن کاملTh deficit and excess in the Southern Ocean during spring 2001: Particle export and remineralization
[1] Th deficit and excess were examined in the upper 500 m of the Southern Ocean from Sub-Antarctic to Seasonal Ice Zones (Australian sector) during austral spring 2001. Th fluxes at 100 m indicate that particle export was low in the North (46.9–51.0 S), minimal in the Polar and Inter-Polar Frontal Zones and high in the South ( 61 S). These results are in tight agreement with new production est...
متن کاملSHORT COMMUNICATION Comparison of mesh size effects on mesozooplankton collection efficiency in the Southern Ocean
Mesozooplankton abundance and species composition in the upper 200 m at seven sites in Lützow-Holm Bay, Antarctica, were compared using plankton nets with 60, 100 or 330 mm mesh during the austral summer of 2007–2008. While the collection efficiency of the 330 mm mesh was low, ranging from 2.0 to 5.6%, owing to the significant underestimation of small copepod species, no significant underestima...
متن کاملSeasonally different carbon flux changes in the Southern Ocean in response to the southern annular mode
Stratospheric ozone depletion and emission of greenhouse gases lead to a trend of the southern annular mode (SAM) toward its high-index polarity. The positive phase of the SAM is characterized by stronger than usual westerly winds that induce changes in the physical carbon transport. Changes in the natural carbon budget of the upper 100 m of the Southern Ocean in response to a positive SAM phas...
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ژورنال
عنوان ژورنال: Frontiers in Marine Science
سال: 2019
ISSN: 2296-7745
DOI: 10.3389/fmars.2019.00230