Kapshyna, Iryna; Fischer, Tobias; Veit-Köhler, Gritta (2024): Monitoring of sandy beach meiofauna before and after sand nourishment (Ahrenshoop, Baltic Sea): abundance data of meiofauna higher taxa [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971240
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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):
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)
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