Citation:

journal.pone.0079890

Name: Iron limitation modulates ocean acidification effects on southern ocean phytoplankton communities
Published: 2013
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Antarctic; Bottles or small containers/Aquaria (<20 L); Community composition and diversity; Entire community; Laboratory experiment; Micro-nutrients; Open ocean; Pelagos; Polar; Primary production/Photosynthesis

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Abstract:

The potential interactive effects of iron (Fe) limitation and Ocean Acidification in the Southern Ocean (SO) are largely unknown. Here we present results of a long-term incubation experiment investigating the combined effects of CO2 and Fe availability on natural phytoplankton assemblages from the Weddell Sea, Antarctica. Active Chl a fluorescence measurements revealed that we successfully cultured phytoplankton under both Fe-depleted and Fe-enriched conditions. Fe treatments had significant effects on photosynthetic efficiency (Fv/Fm; 0.3 for Fe-depleted and 0.5 for Fe-enriched conditions), non-photochemical quenching (NPQ), and relative electron transport rates (rETR). pCO2 treatments significantly affected NPQ and rETR, but had no effect on Fv/Fm. Under Fe limitation, increased pCO2 had no influence on C fixation whereas under Fe enrichment, primary production increased with increasing pCO2 levels. These CO2-dependent changes in productivity under Fe-enriched conditions were accompanied by a pronounced taxonomic shift from weakly to heavily silicified diatoms (i.e. from Pseudo-nitzschia sp. to Fragilariopsis sp.). Under Fe-depleted conditions, this functional shift was absent and thinly silicified species dominated all pCO2 treatments (Pseudo-nitzschia sp. and Synedropsis sp. for low and high pCO2, respectively). Our results suggest that Ocean Acidification could increase primary productivity and the abundance of heavily silicified, fast sinking diatoms in Fe-enriched areas, both potentially leading to a stimulation of the biological pump. Over much of the SO, however, Fe limitation could restrict this possible CO2 fertilization effect.

Keyword(s):

Antarctic; Bottles or small containers/Aquaria (<20 L); Community composition and diversity; Entire community; Laboratory experiment; Micro-nutrients; Open ocean; Pelagos; Polar; Primary production/Photosynthesis

Further details:

Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas (SPP1158)

Funding:

German Research Foundation (DFG), grant/award no. 5472008 : Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas

Coverage:

Latitude: -70.000000 * Longitude: -38.000000

Event(s):

Weddell_Sea * Latitude: -70.000000 * Longitude: -38.000000

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2014-09-16.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Table	Tab		Hoppe, Clara Jule Marie
2	Figure	Fig		Hoppe, Clara Jule Marie
3	Date	Date		Hoppe, Clara Jule Marie
4	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Hoppe, Clara Jule Marie		treatment
5	Treatment	Treat		Hoppe, Clara Jule Marie		Fe
6	Identification	ID		Hoppe, Clara Jule Marie		bottle
7	Photosynthetic efficiency	FV/FM		Hoppe, Clara Jule Marie		1h dark acclimated; dimensionless
8	Net primary production of carbon per particulate organic carbon	NPP C/POC	nmol/µmol/h	Hoppe, Clara Jule Marie
9	Chlorophyll a/particulate organic carbon ratio	Chl a/POC		Hoppe, Clara Jule Marie
10	Photosynthetic efficiency	FV/FM		Hoppe, Clara Jule Marie
11	Effective absorbance cross-section of photosystem II	sigma PSII	A²/quanta	Hoppe, Clara Jule Marie
12	Non photochemical quenching	NPQ		Hoppe, Clara Jule Marie
13	Electron transport rate, relative	rETR	µmol e/m²/s	Hoppe, Clara Jule Marie
14	Species	Species		Hoppe, Clara Jule Marie
15	Percentage	Perc	%	Hoppe, Clara Jule Marie		of total cell count
16	Percentage, standard deviation	Perc std dev	±	Hoppe, Clara Jule Marie
17	Iron, dissolved	Fe diss	µmol/kg	Hoppe, Clara Jule Marie
18	Iron, dissolved, standard deviation	Fe diss std dev	±	Hoppe, Clara Jule Marie
19	Salinity	Sal		Hoppe, Clara Jule Marie
20	Temperature, water	Temp	°C	Hoppe, Clara Jule Marie
21	Phosphate	PHSPHT	µmol/kg	Hoppe, Clara Jule Marie
22	Silicate	SILCAT	µmol/kg	Hoppe, Clara Jule Marie
23	Carbon, inorganic, dissolved	DIC	µmol/kg	Hoppe, Clara Jule Marie	Coulometric titration
24	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Hoppe, Clara Jule Marie	Coulometric titration
25	Alkalinity, total	AT	µmol/kg	Hoppe, Clara Jule Marie	Potentiometric titration
26	Alkalinity, total, standard deviation	AT std dev	±	Hoppe, Clara Jule Marie	Potentiometric titration
27	pH	pH		Hoppe, Clara Jule Marie	Potentiometric	total scale
28	pH, standard deviation	pH std dev	±	Hoppe, Clara Jule Marie	Potentiometric	total scale
29	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Hoppe, Clara Jule Marie	Potentiometric titration
30	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Hoppe, Clara Jule Marie	Potentiometric titration
31	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

7300 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Tab	2 Fig	3 Date	4 pCO2water_SST_wet [µatm] (treatment)	5 Treat (Fe)	6 ID (bottle)	7 FV/FM (1h dark acclimated; dimension...)	8 NPP C/POC [nmol/µmol/h]	9 Chl a/POC	10 FV/FM	11 sigma PSII [A²/quanta]	12 NPQ	13 rETR [µmol e/m²/s]	14 Species	15 Perc [%] (of total cell count)	16 Perc std dev [±]	17 Fe diss [µmol/kg]	18 Fe diss std dev [±]	19 Sal	20 Temp [°C]	21 PHSPHT [µmol/kg]	22 SILCAT [µmol/kg]	23 DIC [µmol/kg] (Coulometric titration)	24 DIC std dev [±] (Coulometric titration)	25 AT [µmol/kg] (Potentiometric titration)	26 AT std dev [±] (Potentiometric titration)	27 pH (total scale, Potentiometric)	28 pH std dev [±] (total scale, Potentiometric)	29 pCO2water_SST_wet [µatm] (Potentiometric titration)	30 pCO2 std dev [±] (Potentiometric titration)	31 CSC flag (Calculated using seacarb afte...)	32 CO2 [µmol/kg] (Calculated using seacarb afte...)	33 pCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	34 fCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	35 [HCO3]- [µmol/kg] (Calculated using seacarb afte...)	36 [CO3]2- [µmol/kg] (Calculated using seacarb afte...)	37 DIC [µmol/kg] (Calculated using seacarb afte...)	38 Omega Arg (Calculated using seacarb afte...)	39 Omega Cal (Calculated using seacarb afte...)
	1	2010-12-22	190	-Fe	1	0.31										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-22	190	-Fe	2	0.30										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-22	190	-Fe	3	0.28										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-22	390	-Fe	1	0.33										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-22	390	-Fe	2											1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-22	390	-Fe	3	0.27										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-22	800	-Fe	1	0.35										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-22	800	-Fe	2	0.33										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-22	800	-Fe	3	0.34										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-22	190	+Fe	1	0.51										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-22	190	+Fe	2	0.48										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-22	190	+Fe	3											0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-22	390	+Fe	1	0.48										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-22	390	+Fe	2	0.51										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-22	390	+Fe	3	0.47										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-22	800	+Fe	1	0.48										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-22	800	+Fe	2	0.47										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-22	800	+Fe	3	0.46										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-29	190	-Fe	1	0.30										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-29	190	-Fe	2	0.25										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-29	190	-Fe	3	0.29										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2010-12-29	390	-Fe	1	0.29										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-29	390	-Fe	2	0.29										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-29	390	-Fe	3	0.27										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2010-12-29	800	-Fe	1	0.26										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-29	800	-Fe	2	0.27										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-29	800	-Fe	3	0.30										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2010-12-29	190	+Fe	1	0.47										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-29	190	+Fe	2	0.40										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-29	190	+Fe	3	0.39										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-29	390	+Fe	1	0.45										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-29	390	+Fe	2	0.39										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-29	390	+Fe	3	0.49										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-29	800	+Fe	1	0.44										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-29	800	+Fe	2	0.42										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-29	800	+Fe	3	0.47										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-30	190	+Fe	1											0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-30	190	+Fe	2	0.37										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-30	190	+Fe	3	0.38										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2010-12-30	390	+Fe	1											0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-30	390	+Fe	2	0.36										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-30	390	+Fe	3	0.39										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2010-12-30	800	+Fe	1	0.40										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-30	800	+Fe	2	0.40										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2010-12-30	800	+Fe	3	0.40										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-03	190	-Fe	1	0.33										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-03	190	-Fe	2	0.31										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-03	190	-Fe	3	0.29										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-03	390	-Fe	1	0.35										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-03	390	-Fe	2	0.33										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-03	390	-Fe	3	0.31										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-03	800	-Fe	1	0.31										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-03	800	-Fe	2	0.34										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-03	800	-Fe	3	0.32										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-03	190	+Fe	1	0.57										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-03	190	+Fe	2	0.55										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-03	190	+Fe	3	0.52										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-03	390	+Fe	1	0.50										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-03	390	+Fe	2	0.48										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-03	390	+Fe	3	0.51										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-03	800	+Fe	1	0.53										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-03	800	+Fe	2	0.52										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-03	800	+Fe	3	0.51										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-05	190	+Fe	1	0.28										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-05	190	+Fe	2	0.27										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-05	190	+Fe	3	0.28										0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	1	2011-01-07	390	+Fe	1	0.37										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-05	390	+Fe	2	0.34										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-06	390	+Fe	3	0.39										0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	1	2011-01-06	800	+Fe	1	0.37										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-06	800	+Fe	2	0.37										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-06	800	+Fe	3	0.34										0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	1	2011-01-11	190	-Fe	1	0.30										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-11	190	-Fe	2	0.27										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-11	190	-Fe	3	0.33										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-11	390	-Fe	1	0.32										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-11	390	-Fe	2	0.31										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-11	390	-Fe	3	0.29										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-11	800	-Fe	1	0.32										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-11	800	-Fe	2	0.32										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-11	800	-Fe	3	0.34										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-15	190	-Fe	1	0.26										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-15	190	-Fe	2	0.26										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-18	190	-Fe	3	0.27										1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	1	2011-01-18	390	-Fe	1	0.29										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-18	390	-Fe	2	0.26										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-14	390	-Fe	3	0.27										1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	1	2011-01-14	800	-Fe	1	0.29										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-14	800	-Fe	2	0.25										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	1	2011-01-15	800	-Fe	3	0.28										1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	3		190	+Fe			3.75									0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	3		190	+Fe			4.21									0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	3		190	+Fe			4.66									0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
	3		390	+Fe			5.66									0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	3		390	+Fe			5.61									0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	3		390	+Fe			6.06									0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
	3		800	+Fe			8.52									0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	3		800	+Fe			7.29									0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	3		800	+Fe			8.65									0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
	3		190	-Fe			3.36									1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	3		190	-Fe			4.24									1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	3		190	-Fe			3.28									1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
	3		390	-Fe			4.92									1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	3		390	-Fe			5.11									1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	3		390	-Fe			4.36									1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
	3		800	-Fe			4.10									1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	3		800	-Fe			3.78									1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
	3		800	-Fe			3.90									1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
2			190	+Fe				0.022	0.57	227	0.06	6.62				0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
2			190	+Fe				0.021	0.55	294	0.06	5.25				0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
2			190	+Fe				0.026	0.52	288	0.06	5.28				0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
2			390	+Fe				0.022	0.50	192	0.02	6.95				0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
2			390	+Fe					0.48	239	0.06	5.98				0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
2			390	+Fe				0.029	0.51	259	0.05	6.46				0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
2			800	+Fe				0.021	0.53	238	0.06	8.40				0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
2			800	+Fe				0.014	0.52	207	0.06	7.45				0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
2			800	+Fe				0.016	0.51	243	0.07	6.66				0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
2			190	-Fe				0.012	0.33	367	0.25	4.43				1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
2			190	-Fe				0.014	0.31	342	0.23	4.36				1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
2			190	-Fe				0.011	0.29	325	0.18	3.70				1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
2			390	-Fe				0.013	0.35	324	0.18	4.75				1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
2			390	-Fe				0.013	0.33	359	0.22	4.10				1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
2			390	-Fe				0.014	0.31	308	0.18	4.57				1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
2			800	-Fe				0.010	0.31	260	0.11	5.22				1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
2			800	-Fe				0.010	0.34	320	0.11	5.38				1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
2			800	-Fe				0.012	0.32	324	0.11	5.26				1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3				Initial									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	5.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Synedropsis sp. (phytoplankton)	1.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Fragilariopsis cylindrus (phytoplankton)	32.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Chaetoceros cf. simplex (phytoplankton)	6.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Phaeocystis antarctica (phytoplankton)	18.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									unidentified flagellates (phytoplankton)	9.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Choanoflagellates (phytoplankton)	6.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Ceratoneis closterium (phytoplankton)	1.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Dinoflagellates (phytoplankton)	6.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Pseudo-nitzschia cf. turgidula (phytoplankton)	2.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Fragilariopsis kerguelensis (phytoplankton)	7.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Thalassiosira sp. (phytoplankton)	3.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Large Chaetoceros sp. (phytoplankton)	2.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Rhizosolenia sp. (phytoplankton)	11.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Thalassiothrix sp. (phytoplankton)	1.0		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Guinardia sp. (phytoplankton)	<0.5		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Eucampia sp. (phytoplankton)	<0.5		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Ciliates (zooplankton)	<0.5		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3				Initial									Silicoflagellates (phytoplankton)	<0.5		1.12	0.15	34	3	1	60	2071		2271		7.93		518		8	29.21	519.97	517.81	2068.52	79.55	2177.27	1.20	1.91
3			190	+Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	39.0	5	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Synedropsis sp. (phytoplankton)	1.0	1	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Fragilariopsis cylindrus (phytoplankton)	43.0	4	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Chaetoceros cf. simplex (phytoplankton)	11.0	0	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Phaeocystis antarctica (phytoplankton)	1.0	0	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									unidentified flagellates (phytoplankton)	3.0	1	0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Choanoflagellates (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Ceratoneis closterium (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Dinoflagellates (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Thalassiosira sp. (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Rhizosolenia sp. (phytoplankton)			0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Thalassiothrix sp. (phytoplankton)			0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Guinardia sp. (phytoplankton)			0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Eucampia sp. (phytoplankton)	<0.5		0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Ciliates (zooplankton)			0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			190	+Fe									Silicoflagellates (phytoplankton)			0.45	0.07	34	3	1	60	2002	11	2208	36	8.31	0.01	188	6	8	10.52	187.33	186.55	1787.70	164.91	1963.14	2.49	3.96
3			390	+Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	40.0	9	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Synedropsis sp. (phytoplankton)	1.0	0	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Fragilariopsis cylindrus (phytoplankton)	42.0	12	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Chaetoceros cf. simplex (phytoplankton)	10.0	2	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Phaeocystis antarctica (phytoplankton)	2.0	2	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									unidentified flagellates (phytoplankton)	2.0	2	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Choanoflagellates (phytoplankton)	1.0	1	0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Ceratoneis closterium (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Dinoflagellates (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Thalassiosira sp. (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Rhizosolenia sp. (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Thalassiothrix sp. (phytoplankton)			0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Guinardia sp. (phytoplankton)	<0.5		0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Eucampia sp. (phytoplankton)			0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Ciliates (zooplankton)			0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			390	+Fe									Silicoflagellates (phytoplankton)			0.32	0.04	34	3	1	60	2082	4	2230	8	8.06	0.03	369	30	8	20.62	366.99	365.46	1969.37	102.16	2092.15	1.54	2.45
3			800	+Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	3.0	3	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Synedropsis sp. (phytoplankton)	3.0	2	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Fragilariopsis cylindrus (phytoplankton)	72.0	5	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Chaetoceros cf. simplex (phytoplankton)	17.0	1	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Phaeocystis antarctica (phytoplankton)	2.0	1	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									unidentified flagellates (phytoplankton)	3.0	3	0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Choanoflagellates (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Ceratoneis closterium (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Dinoflagellates (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Thalassiosira sp. (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Rhizosolenia sp. (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Thalassiothrix sp. (phytoplankton)			0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Guinardia sp. (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Eucampia sp. (phytoplankton)	<0.5		0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Ciliates (zooplankton)			0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			800	+Fe									Silicoflagellates (phytoplankton)			0.21	0.03	34	3	1	60	2175	14	2215	8	7.74	0.02	801	51	8	45.55	810.70	807.32	2082.26	51.70	2179.51	0.78	1.24
3			190	-Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	55.0	16	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Synedropsis sp. (phytoplankton)	26.0	20	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Fragilariopsis cylindrus (phytoplankton)	3.0	2	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Chaetoceros cf. simplex (phytoplankton)	1.0	1	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Phaeocystis antarctica (phytoplankton)	7.0	2	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									unidentified flagellates (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Choanoflagellates (phytoplankton)	4.0	2	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Ceratoneis closterium (phytoplankton)	1.0	0	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Dinoflagellates (phytoplankton)	1.0	1	1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Thalassiosira sp. (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Rhizosolenia sp. (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Thalassiothrix sp. (phytoplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Guinardia sp. (phytoplankton)			1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Eucampia sp. (phytoplankton)			1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Ciliates (zooplankton)	<0.5		1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			190	-Fe									Silicoflagellates (phytoplankton)			1.13	0.16	34	3	1	60	2018	18	2209	5	8.28	0.01	204	5	8	11.43	203.40	202.55	1811.44	155.95	1978.81	2.36	3.75
3			390	-Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	51.0	15	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Synedropsis sp. (phytoplankton)	29.0	16	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Fragilariopsis cylindrus (phytoplankton)	2.0	1	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Chaetoceros cf. simplex (phytoplankton)	3.0	2	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Phaeocystis antarctica (phytoplankton)	6.0	3	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									unidentified flagellates (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Choanoflagellates (phytoplankton)	6.0	3	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Ceratoneis closterium (phytoplankton)	1.0	1	1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Dinoflagellates (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Thalassiosira sp. (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Rhizosolenia sp. (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Thalassiothrix sp. (phytoplankton)			1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Guinardia sp. (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Eucampia sp. (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Ciliates (zooplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			390	-Fe									Silicoflagellates (phytoplankton)	<0.5		1.25	0.21	34	3	1	60	2096	41	2219	21	8.03	0.02	398	22	8	22.15	394.30	392.66	1974.74	95.60	2092.49	1.44	2.30
3			800	-Fe									Pseudo-nitzschia cf. turgiduloides (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Synedropsis sp. (phytoplankton)	78.0	2	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Fragilariopsis cylindrus (phytoplankton)	5.0	3	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Chaetoceros cf. simplex (phytoplankton)	1.0	1	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Phaeocystis antarctica (phytoplankton)	5.0	1	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									unidentified flagellates (phytoplankton)	3.0	1	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Choanoflagellates (phytoplankton)	6.0	0	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Ceratoneis closterium (phytoplankton)	1.0	0	1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Dinoflagellates (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Pseudo-nitzschia cf. turgidula (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Fragilariopsis kerguelensis (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Thalassiosira sp. (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Large Chaetoceros sp. (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Rhizosolenia sp. (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Thalassiothrix sp. (phytoplankton)			1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Guinardia sp. (phytoplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Eucampia sp. (phytoplankton)			1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Ciliates (zooplankton)	<0.5		1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26
3			800	-Fe									Silicoflagellates (phytoplankton)			1.11	0.09	34	3	1	60	2155	41	2241	52	7.74	0.01	813	11	8	46.09	820.34	816.92	2107.03	52.32	2205.44	0.79	1.26