Citation:

PANGAEA.929270

Name: Seawater carbonate chemistry and biomass and fatty acid composition of a post-bloom marine plankton community
Published: 2020
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Biomass/Abundance/Elemental composition; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Mesocosm or benthocosm; North Atlantic; Pelagos; Temperate

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Abstract:

A mesocosm approach was used to investigate the effects of ocean acidification (OA) on a natural plankton community in coastal waters off Norway by manipulating CO2 partial pressure ( pCO2). Eight enclosures were deployed in the Raunefjord near Bergen. Treatment levels were ambient (320 µatm) and elevated pCO2 (~2000 µatm), each in 4 replicate enclosures. The experiment lasted for 53 d in May-June 2015. To assess impacts of OA on the plankton community, phytoplankton and protozooplankton biomass and total seston fatty acid content were analyzed. In both treatments, the plankton community was dominated by the dinoflagellate Ceratium longipes. In the elevated pCO2 treatment, however, biomass of this species as well as that of other dinoflagellates was strongly negatively affected. At the end of the experiment, total dinoflagellate biomass was 4-fold higher in the control group than under elevated pCO2 conditions. In a size comparison of C. longipes, cell size in the high pCO2 treatment was significantly larger. The ratio of polyunsaturated fatty acids to saturated fatty acids of seston decreased at high pCO2. In particular, the concentration of docosahexaenoic acid (C 22:6n3c), essential for development and reproduction of metazoans, was less than half at high pCO2 compared to ambient pCO2. Thus, elevated pCO2 led to a deterioration in the quality and quantity of food in a natural plankton community, with potential consequences for the transfer of matter and energy to higher trophic levels.

Keyword(s):

Biomass/Abundance/Elemental composition; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Mesocosm or benthocosm; North Atlantic; Pelagos; Temperate

Supplement to:

Dörner, Isabel; Hauss, Helena; Aberle, Nicole; Lohbeck, Kai T; Spisla, Carsten; Riebesell, Ulf; Ismar, Stefanie M (2020): Ocean acidification impacts on biomass and fatty acid composition of a post-bloom marine plankton community. Marine Ecology Progress Series, p49-64, https://doi.org/10.3354/meps13390

Source:

Spisla, Carsten; Bach, Lennart Thomas; Taucher, Jan; Boxhammer, Tim; Yong, Jaw-Chuen (2020): KOSMOS Bergen 2015 mesocosm study: Environmental data, carbonate chemistry and nutrients. PANGAEA, https://doi.org/10.1594/PANGAEA.911638

Original version:

Hauss, Helena; Ismar, Stefanie M; Dörner, Isabel; Abele, Doris; Lohbeck, Kai T; Riebesell, Ulf (2018): Phytoplankton, Microzooplankton and Fatty Acid Composition in the KOSMOS Experiment Bergen 2015. PANGAEA, https://doi.org/10.1594/PANGAEA.896337

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: 60.265000 * Longitude: 5.205830

Date/Time Start: 2015-05-09T00:00:00 * Date/Time End: 2015-06-30T00:00:00

Event(s):

KOSMOS_2015_Mesocosm-M1 * Latitude: 60.265000 * Longitude: 5.205830 * Date/Time Start: 2015-05-03T00:00:00 * Date/Time End: 2015-06-30T00:00:00 * Campaign: (KOSMOS Bergen) * Method/Device: Mesocosm experiment (MESO)

KOSMOS_2015_Mesocosm-M2 * Latitude: 60.265000 * Longitude: 5.205830 * Date/Time Start: 2015-05-03T00:00:00 * Date/Time End: 2015-06-30T00:00:00 * Campaign: (KOSMOS Bergen) * Method/Device: Mesocosm experiment (MESO)

KOSMOS_2015_Mesocosm-M3 * Latitude: 60.265000 * Longitude: 5.205830 * Date/Time Start: 2015-05-03T00:00:00 * Date/Time End: 2015-06-30T00:00:00 * Campaign: (KOSMOS Bergen) * Method/Device: Mesocosm experiment (MESO)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 by seacarb is 2021-03-15.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Hauss, Helena
2	Type	Type		Hauss, Helena		study
3	DATE/TIME	Date/Time		Hauss, Helena		Geocode
4	Date/time end	Date/time end		Hauss, Helena
5	Phase	Phase		Hauss, Helena
6	Sample code/label	Sample label		Hauss, Helena
7	Day of experiment	DOE	day	Hauss, Helena
8	Treatment	Treat		Hauss, Helena
9	Fatty acids of water	FAME water	ng/l	Hauss, Helena		14:0
10	Fatty acids of water	FAME water	ng/l	Hauss, Helena		15:0
11	Fatty acids of water	FAME water	ng/l	Hauss, Helena		16:0
12	Fatty acids of water	FAME water	ng/l	Hauss, Helena		16:01
13	Fatty acids of water	FAME water	ng/l	Hauss, Helena		17:0
14	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:0
15	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:1n9c
16	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:1n7
17	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:2n6c
18	Fatty acids of water	FAME water	ng/l	Hauss, Helena		3-OH-14:0
19	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:3n3
20	Fatty acids of water	FAME water	ng/l	Hauss, Helena		18:4n3
21	Fatty acids of water	FAME water	ng/l	Hauss, Helena		20:5n3c
22	Fatty acids of water	FAME water	ng/l	Hauss, Helena		22:1n9c
23	Fatty acids of water	FAME water	ng/l	Hauss, Helena		22:6n3c
24	Fatty acids of water	FAME water	ng/l	Hauss, Helena		Totals
25	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		pico
26	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		nano-i
27	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		synechococcus
28	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		cryptos
29	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		ehux
30	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		diatoms
31	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		dinophyta
32	Phytoplankton, biomass	Phytopl	µg/l	Hauss, Helena		ciliates
33	Fatty acids	Fatty acids	µg/g	Hauss, Helena		14:0
34	Fatty acids	Fatty acids	µg/g	Hauss, Helena		15:0
35	Fatty acids	Fatty acids	µg/g	Hauss, Helena		16:0
36	Fatty acids	Fatty acids	µg/g	Hauss, Helena		16:01
37	Fatty acids	Fatty acids	µg/g	Hauss, Helena		17:0
38	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:0
39	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:1n9c
40	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:1n7
41	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:2n6c
42	Fatty acids	Fatty acids	µg/g	Hauss, Helena		3-OH-14:0
43	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:3n3
44	Fatty acids	Fatty acids	µg/g	Hauss, Helena		18:4n3
45	Fatty acids	Fatty acids	µg/g	Hauss, Helena		20:5n3c
46	Fatty acids	Fatty acids	µg/g	Hauss, Helena		22:1n9c
47	Fatty acids	Fatty acids	µg/g	Hauss, Helena		22:6n3c
48	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Hauss, Helena
49	pH	pH		Hauss, Helena		total scale
50	Salinity	Sal		Hauss, Helena
51	Temperature, water	Temp	°C	Hauss, Helena
52	Aragonite saturation state	Omega Arg		Hauss, Helena
53	Calcite saturation state	Omega Cal		Hauss, Helena
54	Silicate	Si(OH)4	µmol/l	Hauss, Helena
55	Phosphate	[PO4]3-	µmol/l	Hauss, Helena
56	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
57	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
58	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)
59	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
60	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
61	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
62	Alkalinity, total	AT	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
63	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
64	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

5976 data points

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