Citation:

PANGAEA.983765

Name: Sediment and incubation characteristics from the southeastern North Sea during Heincke cruise HE582 in August and September 2021
Creator: Fabrizio Minutolo
Published: 2025-07-18
License: https://creativecommons.org/licenses/by/4.0/
Keywords: benthic nutrient turnover; flow-through measurement; incubation; sediment biogeochemistry; Southern North Sea

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Published: 2025-07-18 • DOI registered: 2025-08-16

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Abstract:

This dataset comprises biogeochemical and sedimentological measurements from surface sediments collected in the southern North Sea during the HEINCKE HE582 campaign in August and September 2021. Surface sediment of the southern North Sea was incubated in flow through reactors (~24h) to quantify benthic oxygen consumption, net silicate turnover, ammonium and nitrate turnover (net and gross rates). Net turnover was derived from concentration gradients between inflow and outflow water under controlled laboratory conditions. Gross turnover was derived using 15NH4 and 15NO3 tracer. Following the incubations, the surface sediment was analyzed for sediment characteristics, including phaeophytin-a, chlorophyll-a, grain size, mud content, TOC and carbohydrates. For a more detailed methodological description please refer to Minutolo et al. (2024).

Keyword(s):

benthic nutrient turnover; flow-through measurement; incubation; sediment biogeochemistry; Southern North Sea

Related to:

Minutolo, Fabrizio; Dähnke, Kirstin; Metzke, Marc; Holtappels, Moritz; Neumann, Andreas (2024): Sedimentary mud and phaeophytin-a are reliable predictors of oxygen consumption and nitrogen turnover in the southern North Sea. Continental Shelf Research, 272, 105161, https://doi.org/10.1016/j.csr.2023.105161

Project(s):

DAM sustainMare - MGF North Sea: Exclusion of mobile bottom-contact fishing in marine protected areas of the German Exclusive Economic Zone of the North Sea (MGF_North_Sea)

Research Mission of the German Marine Research Alliance (DAM): Protection and sustainable use of marine areas (sustainMare)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0847E : DAM sustainMare - MGF North Sea, Hereon

Coverage:

Median Latitude: 55.219781 * Median Longitude: 5.493733 * South-bound Latitude: 54.618350 * West-bound Longitude: 3.674219 * North-bound Latitude: 55.645542 * East-bound Longitude: 7.904688

Date/Time Start: 2021-08-28T07:19:27 * Date/Time End: 2021-09-02T07:22:38

Minimum Elevation: -37.2 m * Maximum Elevation: -9.6 m

Event(s):

HE582_3-5 * Latitude Start: 55.645270 * Longitude Start: 3.675080 * Latitude End: 55.645270 * Longitude End: 3.674600 * Date/Time Start: 2021-08-28T07:19:27 * Date/Time End: 2021-08-28T08:04:41 * Elevation Start: -34.6 m * Elevation End: -37.2 m * Location: North Sea * Campaign: * Basis: * Method/Device: Grab (GRAB) * Comment: Composite sample from multiple deployments

HE582_3-5-1 * Latitude: 55.645269 * Longitude: 3.675083 * Date/Time: 2021-08-28T07:19:27 * Elevation: -34.6 m * Location: North Sea * Campaign: * Basis: * Method/Device: Grab (GRAB)

HE582_3-5-2 * Latitude: 55.645284 * Longitude: 3.674347 * Date/Time: 2021-08-28T07:27:17 * Elevation: -35.5 m * Location: North Sea * Campaign: * Basis: * Method/Device: Grab (GRAB)

Comment:

The study is based on four composite sediment samples:

*HE582_3-5 is composed of 8 subsamples (HE582_3-5-1 - HE582_3-5-8)

*HE582_4-4 is composed of 12 subsamples (HE582_4-4-1 - HE582_4-4-12)

*HE582_5-5 is composed of 7 subsamples (HE582_5-5 - HE582_5-11)

*HE582_7-6 is composed of 7 subsamples (HE582_7-6-1 - HE582_7-6-7)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Minutolo, Fabrizio
2	Sample code/label	Sample label		Minutolo, Fabrizio
3	Phaeophytin a, per unit sediment mass	Phaeophytin a/sed	µg/g	Minutolo, Fabrizio	Spectrophotometer Hach DR6000 UV VIS	dry mass
4	Chlorophyll a, per unit sediment mass	Chl a/sed	µg/g	Minutolo, Fabrizio	Spectrophotometer Hach DR6000 UV VIS	dry mass
5	Grain size, mean	Grain size mean	µm	Minutolo, Fabrizio	Laser Particle Analyser, Fritsch GmbH, Analysette 22
6	Mud	Mud	%	Minutolo, Fabrizio	Laser Particle Analyser, Fritsch GmbH, Analysette 22
7	Carbon, organic, total	TOC	%	Minutolo, Fabrizio	Elemental analyzer, HEKAtechGmbH, Euro EA
8	Carbohydrates, total, per unit sediment dry mass	CHO/sed dm	mg/g	Minutolo, Fabrizio	Spectrophotometer Hach DR6000 UV VIS
9	Oxygen consumption rate	O2 con	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation
10	Net turnover rate, ammonium	net k NH4+	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation
11	Gross turnover rate, ammonium	gross k NH4+	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation
12	Net turnover rate, nitrate	net k NO3-	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation
13	Gross turnover rate, nitrate	gross k NO3-	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation
14	Net turnover rate, silicate	net k Si(OH)4	µmol/l/h	Minutolo, Fabrizio	Flow-through system	Flow through reactor sediment incubation

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

188 data points

Data

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

1 Event	2 Sample label	3 Phaeophytin a/sed [µg/g]	4 Chl a/sed [µg/g]	5 Grain size mean [µm]	6 Mud [%]	7 TOC [%]	8 CHO/sed dm [mg/g]	9 O2 con [µmol/l/h]	10 net k NH4+ [µmol/l/h]	11 gross k NH4+ [µmol/l/h]	12 net k NO3- [µmol/l/h]	13 gross k NO3- [µmol/l/h]	14 net k Si(OH)4 [µmol/l/h]
HE582_3-5	HE582_NIW_FTR1	1.00	0.52	207.56	3.70	0.06	0.08	33.54	-0.37	0.67	1.49		3.13
HE582_3-5	HE582_NIW_FTR2	1.10	0.34	221.93	3.40	0.06	0.09	22.31	-0.35	0.80	1.10		2.60
HE582_3-5	HE582_NIW_FTR3	0.89	0.46	226.46	3.40	0.06	0.10	21.92	-0.29		0.88	5.44	2.24
HE582_3-5	HE582_NIW_FTR4	1.15	0.36	216.99	4.40	0.06	0.10	24.81	-0.29		0.97	5.45	2.32
HE582_4-4	HE582_NIE_FTR1	0.61	1.09	223.81	2.00	0.05	0.10	18.25	-0.11	0.10	0.57		0.67
HE582_4-4	HE582_NIE_FTR2	0.52	1.01	227.54	1.80	0.05	0.11	16.75		0.29	0.51		0.69
HE582_4-4	HE582_NIE_FTR3	0.58	1.01	230.81	1.80	0.05	0.09	15.03			0.41	1.41	0.65
HE582_4-4	HE582_NIE_FTR4	0.62	0.95	226.43	1.60	0.05	0.07	16.46	-0.05		0.41	1.70	0.64
HE582_5-5	HE582_SAR_FTR1	0.14	0.00	436.80	0.30	0.02	0.04	11.49		0.11	0.51		0.35
HE582_5-5	HE582_SAR_FTR2	0.04	0.10	454.51	0.30	0.02	0.03	12.09	0.01	0.00	0.53		0.38
HE582_5-5	HE582_SAR_FTR3	0.15	0.00	446.88	0.20	0.02	0.04	9.09	0.04		0.45	3.36	0.35
HE582_5-5	HE582_SAR_FTR4	0.13	0.00	455.06	0.30	0.05	0.04	10.15	0.04		0.48	1.74	0.36
HE582_7-6	HE582_AB_FTR1	0.19	0.00	655.92	0.30	0.02	0.04	10.66	0.00	0.00	0.22		0.34
HE582_7-6	HE582_AB_FTR2	0.26		613.26	0.10	0.03	0.04	10.16	0.00	0.02	0.24		0.37
HE582_7-6	HE582_AB_FTR3	0.09	0.09	593.18	0.20	0.02	0.07	9.38	0.02		0.21	1.24	0.24
HE582_7-6	HE582_AB_FTR4	0.18	0.00	611.66	0.10	0.02	0.05	10.28	0.00		0.25	0.99	0.34