10.48457/iopan-2024-203 0e2e809b-49f1-4dbe-a138-393b211e9e53 https://ipt.gbif.pl/resource?r=comeback_macrozoobenthos_cores Marta Szczepanek Institute of Oceanology Polish Academy of Sciences (IO PAN) Data Manager

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slominska@iopan.pl Marta Szczepanek Institute of Oceanology Polish Academy of Sciences (IO PAN) Data Manager

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slominska@iopan.pl pointOfContact 2026-05-07 eng Abundance [ind. m-2] and biomass [g m-2; formalin wet weight] of macrozoobenthos from sediment cores (core height: 30 cm; core diameter: 11.43 cm; sampling area: approx. 0.01 m-2) collected by hand directly from the seabed or box corer during Comeback project in the southern Baltic Sea, along the Polish coast. Sampling took place from 3.04.2019 to 27.01.2020, during spring, autumn and winter, and additionally from the shore during summer, at depths from 0.5m to 63m. Sampling and analysis are described in detail in Silberberger et al. (2022; https://doi.org/10.1007/s12237-022-01074-w). Macrofauna Baltic Sea Box correr Coast Seasonal study Benthos GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Specimen GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License. Geographic area covers the southern coast of the Baltic Sea (Poland) from 0.5 to 63 m deep. 14.365 19.143 54.97 53.774 The dataset covers benthic macroinvertebrates including Molusca, Crustacea and Annelida. kingdom Animalia asNeeded Marta Szczepanek Institute of Oceanology Polish Academy of Sciences (IO PAN) Data Manager

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slominska@iopan.pl Monika Kędra Institute of Oceanology Polish Academy of Sciences (IO PAN) Professor

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kedra@iopan.pl 1. Collection of sediment by box correr and/or plexi-glass tube. 2. Experimental part (described elsewhere). 3. Sieving of the sample. 4. Preservation of sample in formalin solution. 5. Taxonomical identification of macrofauna 6. Counting and weighing (boltted formaline weight) The study covers benthic habitats of the southern Baltic Sea, including coastal and adjacent offshore soft-bottom environments along the Polish coast (53.774–54.439°N; 14.365–19.143°E). Macrozoobenthic samples were obtained from soft-bottom sediments using benthic box correr (or directly from the seafloor) . Sediments of approx. 20 cm height were taken by plexi-glass tubes of 11.43 cm diameter and filled with marine water and sealed for later experiments. After experimental part of the study was over, collected material was sieved over 0.5 mm size sieve to separate macrofauna and preserved in formalin solution. In the lab, samples were processed for taxonomic identification and quantitative analyses of abundance and biomass. Narodowe Centrum Nauki 2026-04-23T11:18:11.198+00:00 dataset Kędra, M., Silberberger, MJ., Szczepanek, M., Borawska, Z. Comeback Macrozoobenthos. IOPAN Geonetwork. Borawska Z, Szymczycha B, Silberberger MJ, Koziorowska-Makuch K, Szczepanek M, Kędra M. 2022. Benthic fluxes of dissolved silica are an important component of the marine Si cycle in the coastal zone. Estuarine Coastal and Shelf Science 273: 107880 Silberberger MJ, Koziorowska-Makuch K, Borawska Z, Szczepanek M, Kędra M. 2022. Disentangling the drivers of benthic oxygen and dissolved carbon fluxes in the coastal zone of the Southern Baltic Sea. Estuaries and Coasts 45: 2450-2471 0e2e809b-49f1-4dbe-a138-393b211e9e53/v1.1.xml