Citation:

PANGAEA.971240

Name: Monitoring of sandy beach meiofauna before and after sand nourishment (Ahrenshoop, Baltic Sea): abundance data of meiofauna higher taxa
Published: 2024-07-22
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Ahrenshoop; Baltic Sea; community composition; Fischland-Darß-Zingst Peninsula; meiofauna abundance; sand nourishment; sandy beach; sediment depth layers; taxa

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Abstract:

We provide abundance data for meiofauna taxa determined from sediment samples collected on the sandy-beach water line of Ahrenshoop (Baltic Sea). Five sampling stations lay within the zone impacted by the sand nourishment between the boundary of the nature reserve in the north east and a site just north of the breakwater (AH01-AH05). An unaffected reference station was located south of Ahrenshoop (close to Niehagen) at the end of the road Pappelallee (PAP). Samples were collected at four dates. The first sampling was carried out before the sand nourishment took place (T0: 14 September 2021). Three samplings were realised after the impact: T1 (23 March 2022), T2 (27 September 2022), and T3 (28 March 2023). Latitude and longitude of each sampling location per station were recorded at each sampling date using a hand-held GPS application on a mobile phone. At the stations sampling locations varied over time. Prior to the sand nourishment the beach was narrow due to sand erosion in previous years. After the nourishment the additional extent of the beach was approximately 40 m at sampling date T1. Subsequently, progressive sand erosion forced the sampling locations (situated at the water line) further inland at T2 and T3.

Samples were taken from the beach-water interface (water line) in the middle of the area between two groynes. Plexiglass cores (inner core diameter 5.4 cm) were inserted vertically into the sediment down to 15 cm depth. Each core was sliced in 5 cm-layers (0-5, 5-10 and 10-15 cm). Sediment horizons were preserved in 96-99% ethanol. The organisms were extracted by decantation over a 32-μm sieve. The total number of individuals per taxon was counted and is presented as individuals per 10 cm².

In the framework of our monitoring samples were primarily taken for a large-scale metabarcoding study on meiofauna communities. One core per station and sampling date was reserved for morphology-based community analyses. Here we present the results for the stations AH01, AH03, AH05, and PAP. We selected these stations because of their location at both ends and in the center of the impacted zone (AH01, AH03, AH05) and at the control site (PAP). The meiofauna (32-1000 µm) was mostly represented by Copepoda, Nematoda, Platyhelminthes, Gastrotricha, and some Annelida. We counted 27445 individuals in total, encompassing 10 higher taxa. We counted copepod nauplii separately due to their small body size. We defined the combined group "Plathyhelminthes+Diurodrilus sp." because members of the annelid genus Diurodrilus sp. are not distinguishable from Platyhelminthes under the stereomicroscope.

The meiofauna abundance data are part of a larger ecological study on the influence of sand nourishment on meiofauna communities, which included grain-size and metabarcoding analyses (see Related to and Supplement to).

Keyword(s):

Ahrenshoop; Baltic Sea; community composition; Fischland-Darß-Zingst Peninsula; meiofauna abundance; sand nourishment; sandy beach; sediment depth layers; taxa

Supplement to:

Kapshyna, Iryna; Veit-Köhler, Gritta; Hoffman, Leon; Khodami, Sahar (submitted): Impact of a coastal protection measure on sandy-beach meiofauna at Ahrenshoop (Baltic Sea, Germany): results from metabarcoding and morphological approaches are similar. Metabarcoding and Metagenomics

Related to:

Kapshyna, Iryna; Veit-Köhler, Gritta; Wilsenack, Jule; Steiling, Josefine; Khodami, Sahar: Monitoring of sandy beach meiofauna before and after sand nourishment (Ahrenshoop, Baltic Sea): metabarcoding data (number of reads per operational taxonomic unit) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971242

Funding:

Deutsche Bundesstiftung Umwelt (DBU), grant/award no. 30023/025: Influence of coastal protection measures on the biodiversity of copepods (Ahrenshoop, Baltic Sea): Comparison of quantitative and qualitative methods

Niedersächsisches Ministerium für Wissenschaft und Kultur, grant/award no. 15-76251-3-23/5396/2022: Biodiversity and coastal protection: Influence of sand nourishment on communities of interstitial animals

Coverage:

Median Latitude: 54.380197 * Median Longitude: 12.418804 * South-bound Latitude: 54.356681 * West-bound Longitude: 12.391431 * North-bound Latitude: 54.397566 * East-bound Longitude: 12.443088

Date/Time Start: 2021-09-14T00:00:00 * Date/Time End: 2023-03-28T00:00:00

Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 0.125 m

Event(s):

T0_AH01 (T0) * Latitude: 54.397422 * Longitude: 12.443088 * Date/Time: 2021-09-14T00:00:00 * Location: Ahrenshoop, Mecklenburg-Vorpommern, Germany * Method/Device: Push corer (PUC)

T0_AH03 (T0) * Latitude: 54.387604 * Longitude: 12.429798 * Date/Time: 2021-09-14T00:00:00 * Location: Ahrenshoop, Mecklenburg-Vorpommern, Germany * Method/Device: Push corer (PUC)

T0_AH05 (T0) * Latitude: 54.378733 * Longitude: 12.411166 * Date/Time: 2021-09-14T00:00:00 * Location: Ahrenshoop, Mecklenburg-Vorpommern, Germany * Method/Device: Push corer (PUC)

Comment:

Related to the project:

* ECAS Baltic: Strategies of ecosystem-friendly coastal protection and ecosystem-supporting coastal adaptation for the German Baltic Sea Coast, Web: https://deutsche-kuestenforschung.de/ecas-baltic.html

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Kapshyna, Iryna
2	Optional event label	Event 2		Kapshyna, Iryna
3	Latitude of event	Latitude		Kapshyna, Iryna
4	Longitude of event	Longitude		Kapshyna, Iryna
5	Date/Time of event	Date/Time		Kapshyna, Iryna
6	Station label	Station		Kapshyna, Iryna
7	Identification	ID		Kapshyna, Iryna		Core ID
8	Method/Device of event	Method/Device		Kapshyna, Iryna
9	Sample ID	Sample ID		Kapshyna, Iryna		Sediment layer within core
10	DEPTH, sediment/rock	Depth sed	m	Kapshyna, Iryna		Geocode
11	Depth, top/min	Depth top	m	Kapshyna, Iryna
12	Depth, bottom/max	Depth bot	m	Kapshyna, Iryna
13	Acari	Acari	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
14	Annelida	Annelida	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
15	Bivalvia	Bivalvia	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
16	Copepoda	Copepoda	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
17	Copepoda, nauplii	Copepoda naup	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
18	Gastropoda	Gastropoda	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
19	Gastrotricha	Gastrotricha	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
20	Nematoda	Nematoda	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
21	Platyhelminthes + Diurodrilus sp.	Plathyhelminthes+Diurodrilus sp.	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
22	Rotifera	Rotifera	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
23	Tardigrada	Tardigrada	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)
24	Meiofauna, indeterminata	Meiof indet	#/10 cm²	Kapshyna, Iryna	Abundance (counted and calculated per 10 cm²)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

816 data points

Data

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

1 Event	2 Event 2	3 Latitude	4 Longitude	5 Date/Time	6 Station	7 ID	8 Method/Device	9 Sample ID	10 Depth sed [m]	11 Depth top [m]	12 Depth bot [m]	13 Acari [#/10 cm²]	14 Annelida [#/10 cm²]	15 Bivalvia [#/10 cm²]	16 Copepoda [#/10 cm²]	17 Copepoda naup [#/10 cm²]	18 Gastropoda [#/10 cm²]	19 Gastrotricha [#/10 cm²]	20 Nematoda [#/10 cm²]	21 Plathyhelminthes+Diurodrilus sp. [#/10 cm²]	22 Rotifera [#/10 cm²]	23 Tardigrada [#/10 cm²]	24 Meiof indet [#/10 cm²]
T0_AH01	T0	54.39742	12.44309	2021-09-14	AH01	3	Push corer	A131	0.025	0.00	0.05	0.44	0.00	0.00	20.52	55.02	0.00	0.44	67.24	10.48	0.87	0.00	0.00
T0_AH01	T0	54.39742	12.44309	2021-09-14	AH01	3	Push corer	A132	0.075	0.05	0.10	7.86	1.75	0.44	218.76	162.87	0.00	10.04	84.71	24.45	0.44	0.00	0.00
T0_AH01	T0	54.39742	12.44309	2021-09-14	AH01	3	Push corer	A133	0.125	0.10	0.15	0.00	0.44	0.00	39.30	48.03	0.00	4.37	15.28	17.03	0.00	0.00	0.00
T0_AH03	T0	54.38760	12.42980	2021-09-14	AH03	3	Push corer	A331	0.025	0.00	0.05	0.44	0.00	0.00	21.40	103.05	0.00	8.30	12.66	9.61	0.44	0.44	0.00
T0_AH03	T0	54.38760	12.42980	2021-09-14	AH03	3	Push corer	A332	0.075	0.05	0.10	0.87	6.99	0.44	222.25	87.33	0.00	17.90	50.21	19.65	2.62	0.00	0.00
T0_AH03	T0	54.38760	12.42980	2021-09-14	AH03	3	Push corer	A333	0.125	0.10	0.15	0.87	14.41	0.44	561.08	262.86	1.31	58.51	131.43	62.00	7.42	0.00	0.00
T0_AH05	T0	54.37873	12.41117	2021-09-14	AH05	3	Push corer	A531	0.025	0.00	0.05	0.00	0.00	1.31	6.11	8.30	0.00	0.00	15.72	14.85	1.75	0.44	0.44
T0_AH05	T0	54.37873	12.41117	2021-09-14	AH05	3	Push corer	A532	0.075	0.05	0.10	6.11	32.75	0.00	200.85	205.66	0.00	51.52	141.91	12.23	7.42	0.00	0.00
T0_AH05	T0	54.37873	12.41117	2021-09-14	AH05	3	Push corer	A533	0.125	0.10	0.15	16.59	59.38	0.00	310.89	263.29	0.00	3.06	124.01	10.04	18.34	0.00	0.00
T0_PAP	T0	54.35677	12.39149	2021-09-14	PAP	3	Push corer	A631	0.025	0.00	0.05	0.00	0.00	0.00	10.92	55.45	0.00	22.71	25.76	20.52	2.62	0.44	0.00
T0_PAP	T0	54.35677	12.39149	2021-09-14	PAP	3	Push corer	A632	0.075	0.05	0.10	0.00	0.00	0.00	182.08	92.13	0.00	113.09	22.27	2.18	0.87	0.00	0.00
T0_PAP	T0	54.35677	12.39149	2021-09-14	PAP	3	Push corer	A633	0.125	0.10	0.15	0.00	2.18	0.00	446.25	124.01	0.00	216.14	82.09	6.11	13.97	0.44	0.00
T1_AH01	T1	54.39757	12.44257	2022-03-24	AH01	4	Push corer	B141	0.025	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	2.18	43.23	4.80	0.00	0.00	0.87
T1_AH01	T1	54.39757	12.44257	2022-03-24	AH01	4	Push corer	B142	0.075	0.05	0.10	0.00	0.00	0.00	0.00	0.00	0.00	3.49	69.86	1.75	0.00	0.44	0.44
T1_AH01	T1	54.39757	12.44257	2022-03-24	AH01	4	Push corer	B143	0.125	0.10	0.15	0.00	0.00	0.00	0.44	0.00	0.00	2.18	92.57	10.48	0.00	0.00	0.00
T1_AH03	T1	54.38781	12.42956	2022-03-24	AH03	4	Push corer	B341	0.025	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	0.87	22.27	19.21	0.00	0.00	0.00
T1_AH03	T1	54.38781	12.42956	2022-03-24	AH03	4	Push corer	B342	0.075	0.05	0.10	0.44	0.00	0.00	0.44	0.00	0.00	2.62	76.41	36.24	0.00	0.00	0.44
T1_AH03	T1	54.38781	12.42956	2022-03-24	AH03	4	Push corer	B343	0.125	0.10	0.15	0.00	0.00	0.00	28.38	0.00	0.00	5.68	124.88	75.10	0.44	0.00	0.00
T1_AH05	T1	54.37883	12.41093	2022-03-24	AH05	4	Push corer	B541	0.025	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	1.31	40.17	117.02	0.44	0.00	0.00
T1_AH05	T1	54.37883	12.41093	2022-03-24	AH05	4	Push corer	B542	0.075	0.05	0.10	0.00	0.00	0.00	0.00	0.00	0.00	5.68	19.21	161.12	0.00	0.00	0.00
T1_AH05	T1	54.37883	12.41093	2022-03-24	AH05	4	Push corer	B543	0.125	0.10	0.15	0.00	0.00	0.00	0.87	0.00	0.00	0.44	3.06	72.92	0.00	0.00	0.00
T1_PAP	T1	54.35677	12.39143	2022-03-24	PAP	4	Push corer	B641	0.025	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	7.86	3.93	103.05	1.31	0.00	0.00
T1_PAP	T1	54.35677	12.39143	2022-03-24	PAP	4	Push corer	B642	0.075	0.05	0.10	0.00	0.00	0.00	0.87	0.87	0.00	10.48	6.11	47.16	0.00	0.00	0.00
T1_PAP	T1	54.35677	12.39143	2022-03-24	PAP	4	Push corer	B643	0.125	0.10	0.15	0.44	0.44	0.00	42.35	17.47	0.00	12.23	36.68	24.02	79.90	0.87	0.00
T2_AH01	T2	54.39755	12.44290	2022-09-27	AH01	4	Push corer	C141	0.025	0.00	0.05	0.00	0.00	0.00	0.44	28.38	0.00	10.92	5.68	1.75	0.44	0.00	0.00
T2_AH01	T2	54.39755	12.44290	2022-09-27	AH01	4	Push corer	C142	0.075	0.05	0.10	0.00	0.44	0.00	16.59	467.64	0.00	15.72	11.79	11.35	0.00	0.00	0.00
T2_AH01	T2	54.39755	12.44290	2022-09-27	AH01	4	Push corer	C143	0.125	0.10	0.15	0.44	0.00	0.00	300.41	93.88	0.00	19.65	42.35	41.04	0.87	0.00	0.00
T2_AH03	T2	54.38774	12.42954	2022-09-27	AH03	4	Push corer	C341	0.025	0.00	0.05	0.00	0.00	0.00	1.75	1.31	0.00	9.61	55.89	4.80	6.99	0.00	0.00
T2_AH03	T2	54.38774	12.42954	2022-09-27	AH03	4	Push corer	C342	0.075	0.05	0.10	0.00	0.00	0.00	33.18	29.69	0.00	3.49	24.45	11.35	0.44	0.00	0.87
T2_AH03	T2	54.38774	12.42954	2022-09-27	AH03	4	Push corer	C343	0.125	0.10	0.15	0.00	0.00	0.44	261.55	86.89	0.00	0.87	34.06	17.47	0.00	0.00	0.00
T2_AH05	T2	54.37882	12.41105	2022-09-27	AH05	4	Push corer	C541	0.025	0.00	0.05	0.87	0.00	0.00	0.00	0.00	0.00	9.17	31.00	23.58	3.93	0.44	0.00
T2_AH05	T2	54.37882	12.41105	2022-09-27	AH05	4	Push corer	C542	0.075	0.05	0.10	7.42	0.44	0.00	38.86	0.87	0.00	5.68	69.43	21.40	3.49	0.87	0.87
T2_AH05	T2	54.37882	12.41105	2022-09-27	AH05	4	Push corer	C543	0.125	0.10	0.15	0.00	0.00	0.00	25.33	0.87	0.00	10.04	18.34	20.96	0.87	0.00	0.00
T2_PAP	T2	54.35678	12.39152	2022-09-27	PAP	4	Push corer	C641	0.025	0.00	0.05	6.99	7.86	0.00	5.24	2.62	0.00	4.37	34.49	24.45	3.49	0.00	0.00
T2_PAP	T2	54.35678	12.39152	2022-09-27	PAP	4	Push corer	C642	0.075	0.05	0.10	0.00	0.00	0.00	2.18	1.31	0.00	60.69	18.78	33.62	0.44	0.00	0.00
T2_PAP	T2	54.35678	12.39152	2022-09-27	PAP	4	Push corer	C643	0.125	0.10	0.15	0.00	0.00	0.00	93.44	5.68	0.00	11.35	21.83	20.96	0.00	0.00	0.44
T3_AH01	T3	54.39740	12.44291	2023-03-28	AH01	4	Push corer	D141	0.025	0.00	0.05	0.44	0.00	0.00	0.44	0.00	0.00	0.00	3.49	0.44	9.61	0.00	0.00
T3_AH01	T3	54.39740	12.44291	2023-03-28	AH01	4	Push corer	D142	0.075	0.05	0.10	0.00	0.00	0.00	2.18	0.00	0.00	3.93	33.18	13.97	0.00	0.00	0.00
T3_AH01	T3	54.39740	12.44291	2023-03-28	AH01	4	Push corer	D143	0.125	0.10	0.15	0.00	7.42	0.00	103.48	14.41	0.00	69.86	183.83	95.62	9.61	0.00	0.00
T3_AH03	T3	54.38775	12.42974	2023-03-28	AH03	4	Push corer	D341	0.025	0.00	0.05	0.00	0.87	0.00	31.44	1.31	0.00	18.78	44.54	41.04	1.31	0.00	0.00
T3_AH03	T3	54.38775	12.42974	2023-03-28	AH03	4	Push corer	D342	0.075	0.05	0.10	0.00	2.18	0.00	61.57	17.90	0.00	18.78	84.27	170.73	3.93	0.00	0.00
T3_AH03	T3	54.38775	12.42974	2023-03-28	AH03	4	Push corer	D343	0.125	0.10	0.15	0.00	6.11	0.00	74.23	16.16	0.00	16.16	41.48	206.09	4.80	0.44	0.44
T3_AH05	T3	54.37894	12.41155	2023-03-28	AH05	4	Push corer	D541	0.025	0.00	0.05	0.00	0.44	0.00	0.00	0.00	0.00	1.31	0.87	3.06	46.28	0.44	0.00
T3_AH05	T3	54.37894	12.41155	2023-03-28	AH05	4	Push corer	D542	0.075	0.05	0.10	0.44	0.00	0.00	5.68	1.31	0.00	16.16	35.80	34.49	0.44	1.75	0.00
T3_AH05	T3	54.37894	12.41155	2023-03-28	AH05	4	Push corer	D543	0.125	0.10	0.15	0.00	2.62	0.00	20.96	1.31	0.00	21.40	80.34	72.48	0.87	0.00	0.00
T3_PAP	T3	54.35668	12.39163	2023-03-28	PAP	4	Push corer	D641	0.025	0.00	0.05	0.00	7.86	0.00	57.64	16.59	0.00	13.54	65.06	87.76	2.18	0.87	1.75
T3_PAP	T3	54.35668	12.39163	2023-03-28	PAP	4	Push corer	D642	0.075	0.05	0.10	0.44	9.61	0.00	100.86	50.21	0.00	0.87	120.08	100.43	21.40	1.31	0.00
T3_PAP	T3	54.35668	12.39163	2023-03-28	PAP	4	Push corer	D643	0.125	0.10	0.15	0.87	5.68	0.00	105.67	38.42	0.00	20.52	123.57	103.48	3.49	0.00	0.87