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• W2390206325 endingPage "35" @default.
• W2390206325 startingPage "22" @default.
• W2390206325 abstract "Biogeochemical and diatom export fluxes are presented from two bathypelagic sediment trap deployments in the Antarctic Zone of the Southern Ocean. One of the sediment traps was deployed in very productive, naturally iron-fertilized waters downstream of South Georgia (P3, 2000 m) and compared to a deployment in moderately productive waters upstream of the island system (P2, 1500 m). At both sites significant diatom export events occurred in spring (November) and contained mostly empty cells that were associated with low particulate organic carbon (POC) fluxes. A summer export pulse occurred one month later at P2 (end February/March) compared to P3 (end January). Diatom fluxes at P3 were one order of magnitude higher than at P2, a difference mainly attributed to the short and intense export of resting spores from Chaetoceros Hyalochaete and Thalassiosira antarctica species. Aside from these resting spores, diatom export assemblages at both sites were dominated by empty Fragilariopsis kerguelensis frustules. The fraction of diatoms exported as empty frustules was considerably lower at P3 (52%) than P2 (91%). This difference was related to the flux of intact diatom resting spores at P3 and may partially explain the lower Si:C export stoichiometry observed at P3 (1.1) compared to P2 (1.5). Through the enumeration of full diatom frustules and subsequent biomass calculations we estimate that diatom resting spores account for 42% of annual POC flux in the productive waters downstream of South Georgia. At both sites the contribution of diatom vegetative stages to POC fluxes was considerably lower (<5%). From these analyses we conclude that resting spore export contributes towards the slightly higher bathypelagic (POC) flux at P3 (40.6 mmol m−2 y−1) compared to P2 (26.4 mmol m−2 y−1). We compared our sediment trap records with previously published diatom assemblage data from the mixed layer and surface sediments (3760 m) around South Georgia. The relative proportion of diatom resting spores within diatom assemblages increases as a function of depth and is explained by selective preservation of their robust frustules. Our study highlights the significance of diatom resting spore export as a carbon vector out of the mixed layer. Furthermore, the contribution or resting spores to POC flux in the bathypelagic ocean and sediments suggests they play a particularly important role in sequestering biologically fixed CO2 over climatically relevant timescales." @default.
• W2390206325 created "2016-06-24" @default.
• W2390206325 creator A5007316649 @default.
• W2390206325 creator A5030459249 @default.
• W2390206325 creator A5044406061 @default.
• W2390206325 creator A5052003147 @default.
• W2390206325 creator A5086214353 @default.
• W2390206325 date "2016-09-01" @default.
• W2390206325 modified "2023-10-18" @default.
• W2390206325 title "Strong contribution of diatom resting spores to deep-sea carbon transfer in naturally iron-fertilized waters downstream of South Georgia" @default.
• W2390206325 cites W1485635014 @default.
• W2390206325 cites W1521066003 @default.
• W2390206325 cites W1578086698 @default.
• W2390206325 cites W1597153348 @default.
• W2390206325 cites W1607825512 @default.
• W2390206325 cites W1610088203 @default.
• W2390206325 cites W1662091717 @default.
• W2390206325 cites W1785151283 @default.
• W2390206325 cites W1810783298 @default.
• W2390206325 cites W1844776954 @default.
• W2390206325 cites W1845687241 @default.
• W2390206325 cites W1886862799 @default.
• W2390206325 cites W1941417991 @default.
• W2390206325 cites W1964619932 @default.
• W2390206325 cites W1966160823 @default.
• W2390206325 cites W1967583377 @default.
• W2390206325 cites W1968708129 @default.
• W2390206325 cites W1968911577 @default.
• W2390206325 cites W1970266024 @default.
• W2390206325 cites W1976862248 @default.
• W2390206325 cites W1983154388 @default.
• W2390206325 cites W1983427713 @default.
• W2390206325 cites W1987117170 @default.
• W2390206325 cites W1990149678 @default.
• W2390206325 cites W1990203292 @default.
• W2390206325 cites W1990788337 @default.
• W2390206325 cites W1991531753 @default.
• W2390206325 cites W1993013648 @default.
• W2390206325 cites W1995073244 @default.
• W2390206325 cites W1995863362 @default.
• W2390206325 cites W1995866197 @default.
• W2390206325 cites W1997232238 @default.
• W2390206325 cites W1998709008 @default.
• W2390206325 cites W1999690392 @default.
• W2390206325 cites W2000567783 @default.
• W2390206325 cites W2009315306 @default.
• W2390206325 cites W2009381381 @default.
• W2390206325 cites W2009389397 @default.
• W2390206325 cites W2009863376 @default.
• W2390206325 cites W2010149085 @default.
• W2390206325 cites W2013025309 @default.
• W2390206325 cites W2013995291 @default.
• W2390206325 cites W2014283380 @default.
• W2390206325 cites W2023938724 @default.
• W2390206325 cites W2027880636 @default.
• W2390206325 cites W2029121130 @default.
• W2390206325 cites W2036367568 @default.
• W2390206325 cites W2037971121 @default.
• W2390206325 cites W2038643777 @default.
• W2390206325 cites W2047148230 @default.
• W2390206325 cites W2048583521 @default.
• W2390206325 cites W2053122731 @default.
• W2390206325 cites W2054592419 @default.
• W2390206325 cites W2059040640 @default.
• W2390206325 cites W2059531668 @default.
• W2390206325 cites W2061945692 @default.
• W2390206325 cites W2066006783 @default.
• W2390206325 cites W2067367216 @default.
• W2390206325 cites W2068940821 @default.
• W2390206325 cites W2069855512 @default.
• W2390206325 cites W2074084276 @default.
• W2390206325 cites W2075405323 @default.
• W2390206325 cites W2080922516 @default.
• W2390206325 cites W2082829486 @default.
• W2390206325 cites W2083848042 @default.
• W2390206325 cites W2088878159 @default.
• W2390206325 cites W2090524708 @default.
• W2390206325 cites W2093038262 @default.
• W2390206325 cites W2094230315 @default.
• W2390206325 cites W2102337248 @default.
• W2390206325 cites W2103954074 @default.
• W2390206325 cites W2104370663 @default.
• W2390206325 cites W2106235077 @default.
• W2390206325 cites W2107371693 @default.
• W2390206325 cites W2108490130 @default.
• W2390206325 cites W2111913751 @default.
• W2390206325 cites W2114628556 @default.
• W2390206325 cites W2128047491 @default.
• W2390206325 cites W2129109958 @default.
• W2390206325 cites W2140225267 @default.
• W2390206325 cites W2143182887 @default.
• W2390206325 cites W2146440942 @default.
• W2390206325 cites W2151352402 @default.
• W2390206325 cites W2152300282 @default.
• W2390206325 cites W2154494747 @default.
• W2390206325 cites W2157240053 @default.
• W2390206325 cites W2158803432 @default.
• W2390206325 cites W2159840832 @default.

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