Citation:

PANGAEA.928950

Name: Seawater carbonate chemistry and food web composition, productivity, and trophic architecture
Published: 2020
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benthos; Biomass/Abundance/Elemental composition; Coast and continental shelf; Community composition and diversity; Entire community; Growth/Morphology; Laboratory experiment; Mesocosm or benthocosm; Other studied parameter or process; Primary production/Photosynthesis; Rocky-shore community; South Pacific; Temperate; Temperature

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Abstract:

As human activities intensify, the structures of ecosystems and their food webs often reorganize. Through the study of mesocosms harboring a diverse benthic coastal community, we reveal that food web architecture can be inflexible under ocean warming and acidification and unable to compensate for the decline or proliferation of taxa. Key stabilizing processes, including functional redundancy, trophic compensation, and species substitution, were largely absent under future climate conditions. A trophic pyramid emerged in which biomass expanded at the base and top but contracted in the center. This structure may characterize a transitionary state before collapse into shortened, bottom-heavy food webs that characterize ecosystems subject to persistent abiotic stress. We show that where food web architecture lacks adjustability, the adaptive capacity of ecosystems to global change is weak and ecosystem degradation likely.

Keyword(s):

Benthos; Biomass/Abundance/Elemental composition; Coast and continental shelf; Community composition and diversity; Entire community; Growth/Morphology; Laboratory experiment; Mesocosm or benthocosm; Other studied parameter or process; Primary production/Photosynthesis; Rocky-shore community; South Pacific; Temperate; Temperature

Supplement to:

Nagelkerken, Ivan; Goldenberg, Silvan Urs; Ferreira, Camilo M; Ullah, Hadayet; Connell, Sean D (2020): Trophic pyramids reorganize when food web architecture fails to adjust to ocean change. Science, 369(6505), 829-832, https://doi.org/10.1126/science.aax0621

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: -34.952800 * Longitude: 138.505600

Date/Time Start: 2015-02-01T00:00:00 * Date/Time End: 2015-02-28T00:00:00

Event(s):

SARDI * Latitude: -34.952800 * Longitude: 138.505600 * Date/Time Start: 2015-02-01T00:00:00 * Date/Time End: 2015-02-28T00:00:00 * Method/Device: Experiment (EXP)

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 2021-03-09.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Nagelkerken, Ivan		study
2	Treatment	Treat		Nagelkerken, Ivan
3	Mesocosm label	Meso label		Nagelkerken, Ivan
4	Dry mass	Dry m	g	Nagelkerken, Ivan		Macrophytes
5	Dry mass	Dry m	g	Nagelkerken, Ivan		Turf Algae
6	Dry mass	Dry m	g	Nagelkerken, Ivan		Phytoplankton
7	Dry mass	Dry m	g	Nagelkerken, Ivan		Microalgae
8	Dry mass	Dry m	g	Nagelkerken, Ivan		Cyanobacteria
9	Net community production of oxygen	NCP O2	mg/m³/min	Nagelkerken, Ivan
10	Wet mass	Wet m	g	Nagelkerken, Ivan		Macrophytes
11	Wet mass	Wet m	g	Nagelkerken, Ivan		Turf Algae
12	Wet mass	Wet m	g	Nagelkerken, Ivan		Phytoplankton
13	Wet mass	Wet m	g	Nagelkerken, Ivan		Microalgae
14	Wet mass	Wet m	g	Nagelkerken, Ivan		Cyanobacteria
15	Wet mass	Wet m	g	Nagelkerken, Ivan		Macro Crustaceans
16	Wet mass	Wet m	g	Nagelkerken, Ivan		Copepods
17	Wet mass	Wet m	g	Nagelkerken, Ivan		Detritivores
18	Wet mass	Wet m	g	Nagelkerken, Ivan		Acidians
19	Wet mass	Wet m	g	Nagelkerken, Ivan		Sponges
20	Wet mass	Wet m	g	Nagelkerken, Ivan		Cryptic molluscs
21	Wet mass	Wet m	g	Nagelkerken, Ivan		Non cryptic molluscs
22	Wet mass	Wet m	g	Nagelkerken, Ivan		Fishes
23	Wet mass	Wet m	g	Nagelkerken, Ivan		Predatory invertebrates
24	Wet mass	Wet m	g	Nagelkerken, Ivan		Other invertebrates
25	Wet mass	Wet m	g	Nagelkerken, Ivan		Autotrophs total
26	Wet mass	Wet m	g	Nagelkerken, Ivan		Heteretrophs total
27	Ratio	Ratio		Nagelkerken, Ivan		Auto/Heterotroph
28	Trophic level description	Trophic level desc		Nagelkerken, Ivan
29	Functional group	Functional gr		Nagelkerken, Ivan
30	Wet mass production	Wet m prod	g/m²	Nagelkerken, Ivan
31	Taxon/taxa	Taxa		Nagelkerken, Ivan
32	Abbreviation	Abbrev		Nagelkerken, Ivan		Taxon
33	δ15N	δ15N	‰ air	Nagelkerken, Ivan
34	δ15N, standard error	δ15N std e	±	Nagelkerken, Ivan
35	δ13C	δ13C	‰ PDB	Nagelkerken, Ivan
36	δ13C, standard error	δ13C std e	±	Nagelkerken, Ivan
37	Nitrogen	N	%	Nagelkerken, Ivan
38	Nitrogen, standard error	N std e	±	Nagelkerken, Ivan
39	Carbon	C	%	Nagelkerken, Ivan
40	Carbon, standard error	C std e	±	Nagelkerken, Ivan
41	Carbon/Nitrogen ratio	C/N		Nagelkerken, Ivan
42	Effects sizes	ES		Nagelkerken, Ivan		Biomass
43	δ15N	δ15N	‰ air	Nagelkerken, Ivan		Individuals sampled Isotopes Treatment
44	δ15N	δ15N	‰ air	Nagelkerken, Ivan		SEAc Treatment
45	δ15N	δ15N	‰ air	Nagelkerken, Ivan		Individuals sampled Isotopes Control
46	δ15N	δ15N	‰ air	Nagelkerken, Ivan		SEAc Control
47	Effects sizes	ES		Nagelkerken, Ivan		SEAc
48	Energy flow	E flow	g/m²/month	Nagelkerken, Ivan
49	Comment	Comment		Nagelkerken, Ivan		Flows
50	Temperature, water	Temp	°C	Nagelkerken, Ivan
51	Temperature, water, standard deviation	Temp std dev	±	Nagelkerken, Ivan
52	pH	pH		Nagelkerken, Ivan	Potentiometric	NBS scale
53	pH, standard deviation	pH std dev	±	Nagelkerken, Ivan	Potentiometric	NBS scale
54	Salinity	Sal		Nagelkerken, Ivan
55	Salinity, standard deviation	Sal std dev	±	Nagelkerken, Ivan
56	Alkalinity, total	AT	µmol/kg	Nagelkerken, Ivan	Potentiometric titration
57	Alkalinity, total, standard deviation	AT std dev	±	Nagelkerken, Ivan	Potentiometric titration
58	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Nagelkerken, Ivan	Calculated using CO2SYS
59	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Nagelkerken, Ivan	Calculated using CO2SYS
60	Bicarbonate ion	[HCO3]-	µmol/kg	Nagelkerken, Ivan	Calculated using CO2SYS
61	Bicarbonate ion, standard deviation	[HCO3]- std dev	±	Nagelkerken, Ivan	Calculated using CO2SYS
62	Carbonate ion	[CO3]2-	µmol/kg	Nagelkerken, Ivan	Calculated using CO2SYS
63	Carbonate ion, standard deviation	[CO3]2- std dev	±	Nagelkerken, Ivan	Calculated using CO2SYS
64	Calcite saturation state	Omega Cal		Nagelkerken, Ivan	Calculated using CO2SYS
65	Calcite saturation state, standard deviation	Omega Cal std dev	±	Nagelkerken, Ivan	Calculated using CO2SYS
66	Aragonite saturation state	Omega Arg		Nagelkerken, Ivan	Calculated using CO2SYS
67	Aragonite saturation state, standard deviation	Omega Arg std dev	±	Nagelkerken, Ivan	Calculated using CO2SYS
68	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
69	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
70	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
71	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)
72	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)
73	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
74	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
75	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
76	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
77	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:

39729 data points

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