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  • 2020-2024  (2)
  • 2020-2023  (5)
  • 2022  (7)
  • 2022  (7)
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  • 2020-2024  (2)
  • 2020-2023  (5)
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  • 1
    Publication Date: 2024-01-16
    Description: Makrozoobenthos of soft-bottom benthic communiy was collected by van-Veen grabs and beam trawls to sample the infauna and epifauna. Samples were collected between 2003 and 2004 in spring, summer and autumn each year. Benthic data were collected in the North Sea, German Bight off the East Frisian Coast. Benthic community was evaluated for potential changes after cessation of bottom trawling. In July 2003, the research platform FINO 1 was built as a pilot project for future offshore wind farms. The platform is located at 28 m water depth in the German Bight, 45 km off the Island Borkum. The surroundings of the platform (500 m radius) are closed for all shipping activities (except scientific activities) and are thus protected from trawling activities. Two zones beyond the 500 m radius, 9 km apart from the protected area in north-western and eastern direction were chosen as reference sites. Sampling follwed a BACI-design (before-after-control-impact), i.e. comparing the protected area to the further trawled areas. In both areas, protected and trawled area, sampling of the benthic community was carried out with “RV Heincke” during 2 periods. The first sampling period, defined as “pre-closure”, includes two sampling campaigns: one campaign 3 months before and one campaign 2 weeks after fishery closure of protected area (March/April and July/August 2003). “Post-closure” sampling was also carried out in two campaigns: one campaign in July/August and one campaign in September/October 2004, i.e. 12-14 months after fishery closure of protected area. Data for each campaign comprise different stations in the area, sampled by grab samples (infauna) and beam trawl samples (epifauna). Biodiversity data of species include abundance (count data) and biomass (wet mass, g) per sample, as well as sediment grain sizes, organic carbon, total carbon, nitrogen and sulfur content as accompanying environmental data.
    Keywords: Area; BEAM; Beam trawl; benthic communities; Campaign; Carbon, organic; Carbon, total; DATE/TIME; DEPTH, water; Epifauna; Event label; Gear; German Bight; HE185; HE185/0132-1; HE185/0132-1_1_1; HE185/0132-2; HE185/0132-2_1_1; HE185/0132-3; HE185/0132-3_1_1; HE185/0133-1; HE185/0133-1_1_1; HE185/0133-2; HE185/0133-2_1_1; HE185/0133-3; HE185/0133-3_1_1; HE185/0134-1; HE185/0134-1_1_1; HE185/0134-2; HE185/0134-2_1_1; HE185/0134-3; HE185/0134-3_1_1; HE185/0149-20; HE185/0149-20_1_1; HE185/0149-4; HE185/0149-4_1_1; HE185/0149-5; HE185/0149-5_1_1; HE185/0151-1; HE185/0151-1_1_1; HE185/0151-2; HE185/0151-2_1_1; HE185/0151-3; HE185/0151-3_1_1; HE185/0152-1; HE185/0152-1_1_1; HE185/0152-2; HE185/0152-2_1_1; HE185/0152-3; HE185/0152-3_1_1; HE185/0163-1; HE185/0163-1_1_1; HE185/0163-2; HE185/0163-2_1_1; HE185/0163-3; HE185/0163-3_1_1; HE185/0164-1; HE185/0164-1_1_1; HE185/0164-2; HE185/0164-2_1_1; HE185/0164-3; HE185/0164-3_1_1; HE185/0165-1; HE185/0165-1_1_1; HE185/0165-2; HE185/0165-2_1_1; HE185/0165-3; HE185/0165-3_1_1; HE185/0167-1; HE185/0167-1_1_1; HE185/0167-2; HE185/0167-2_1_1; HE185/0167-3; HE185/0167-3_1_1; HE185/0168-1; HE185/0168-1_1_1; HE185/0168-2; HE185/0168-2_1_1; HE185/0168-3; HE185/0168-3_1_1; HE185/0170-1; HE185/0170-1_1_1; HE185/0171-1; HE185/0171-1_1_1; HE185/0172-1; HE185/0172-1_1_1; HE185/0173-1; HE185/0173-1_1_1; HE185/0174-1; HE185/0174-1_1_1; HE185/0178-1; HE185/0178-1_1_1; HE185/0179-1; HE185/0179-1_1_1; HE185/0180-1; HE185/0180-1_1_1; HE185/0181-1; HE185/0181-1_1_1; HE185/0182-1; HE185/0182-1_1_1; HE194; HE194/1109-1; HE194/1109-1_1_1; HE194/1109-2; HE194/1109-2_1_1; HE194/1109-3; HE194/1109-3_1_1; HE194/1110-1; HE194/1110-1_1_1; HE194/1110-2; HE194/1110-2_1_1; HE194/1110-3; HE194/1110-3_1_1; HE194/1111-1; HE194/1111-1_1_1; HE194/1111-2; HE194/1111-2_1_1; HE194/1111-3; HE194/1111-3_1_1; HE194/1113-1; HE194/1113-1_1_1; HE194/1113-2; HE194/1113-2_1_1; HE194/1113-3; HE194/1113-3_1_1; HE194/1114-1; HE194/1114-1_1_1; HE194/1114-2; HE194/1114-2_1_1; HE194/1114-3; HE194/1114-3_1_1; HE194/1115-1; HE194/1115-1_1_1; HE194/1115-2; HE194/1115-2_1_1; HE194/1115-3; HE194/1115-3_1_1; HE194/1116-1; HE194/1116-1_1_1; HE194/1116-2; HE194/1116-2_1_1; HE194/1116-3; HE194/1116-3_1_1; HE194/1117-1; HE194/1117-1_1_1; HE194/1117-2; HE194/1117-2_1_1; HE194/1117-3; HE194/1117-3_1_1; HE194/1139-1; HE194/1139-1_1_1; HE194/1140-1; HE194/1140-1_1_1; HE194/1141-1; HE194/1141-1_1_1; HE194/1142-1; HE194/1142-1_1_1; HE194/1143-1; HE194/1143-1_1_1; HE194/1145-1; HE194/1145-1_1_1; HE194/1145-2; HE194/1145-2_1_1; HE194/1145-4; HE194/1145-4_1_1; HE194/1146-1; HE194/1146-1_1_1; HE194/1146-2; HE194/1146-2_1_1; HE194/1146-3; HE194/1146-3_1_1; HE194/1168-1; HE194/1168-1_1_1; HE194/1169-1; HE194/1169-1_1_1; HE194/1170-1; HE194/1170-1_1_1; HE194/1171-1; HE194/1171-1_1_1; HE194/1172-1; HE194/1172-1_1_1; HE200; HE200/1246-1; HE200/1246-1_1_1; HE200/1246-2; HE200/1246-2_1_1; HE200/1246-3; HE200/1246-3_1_1; HE200/1260-1; HE200/1260-1_1_1; HE200/1260-2; HE200/1260-2_1_1; HE200/1260-3; HE200/1260-3_1_1; HE200/1261-1; HE200/1261-1_1_1; HE200/1261-2; HE200/1261-2_1_1; HE200/1261-3; HE200/1261-3_1_1; HE200/1262-1; HE200/1262-1_1_1; HE200/1262-2; HE200/1262-2_1_1; HE200/1262-3; HE200/1262-3_1_1; HE200/1276-1; HE200/1276-1_1_1; HE200/1276-2; HE200/1276-2_1_1; HE200/1276-3; HE200/1276-3_1_1; HE200/1277-1; HE200/1277-1_1_1; HE200/1277-2; HE200/1277-2_1_1; HE200/1277-3; HE200/1277-3_1_1; HE200/1278-1; HE200/1278-1_1_1; HE200/1278-2; HE200/1278-2_1_1; HE200/1278-3; HE200/1278-3_1_1; HE200/1280-1; HE200/1280-1_1_1; HE200/1280-2; HE200/1280-2_1_1; HE200/1280-3; HE200/1280-3_1_1; HE200/1281-1; HE200/1281-1_1_1; HE200/1281-2; HE200/1281-2_1_1; HE200/1281-3; HE200/1281-3_1_1; HE200/1283-1; HE200/1283-1_1_1; HE200/1285-1; HE200/1285-1_1_1; HE200/1286-1; HE200/1286-1_1_1; HE200/1287-1; HE200/1287-1_1_1; HE200/1299-1; HE200/1299-1_1_1; HE200/1312-10; HE200/1312-10_1_1; HE200/1312-11; HE200/1312-11_1_1; HE200/1312-4; HE200/1312-4_1_1; HE200/1313-1; HE200/1313-1_1_1; HE200/1313-2; HE200/1313-2_1_1; HE200/1313-3; HE200/1313-3_1_1; HE200/1314-1; HE200/1314-1_1_1; HE200/1314-2; HE200/1314-2_1_1; HE200/1314-3; HE200/1314-3_1_1; HE200/1316-1; HE200/1316-1_1_1; HE200/1316-2; HE200/1316-2_1_1; HE200/1316-3; HE200/1316-3_1_1; HE200/1317-2; HE200/1317-2_1_1; HE200/1317-3; HE200/1317-3_1_1; HE200/1317-4; HE200/1317-4_1_1; HE200/1320-1; HE200/1320-1_1_1; HE200/1321-1; HE200/1321-1_1_1; HE200/1322-1; HE200/1322-1_1_1; HE200/1323-1; HE200/1323-1_1_1; HE200/1324-1; HE200/1324-1_1_1; HE200/1338-1; HE200/1338-1_1_1; HE200/1341-1; HE200/1341-1_1_1; HE200/1342-1; HE200/1342-1_1_1; HE200/1343-1; HE200/1343-1_1_1; HE200/1344-1; HE200/1344-1_1_1; HE200/1345-1; HE200/1345-1_1_1; HE200/1346-1; HE200/1346-1_1_1; HE205; HE205/0237-1; HE205/0237-1_1_1; HE205/0237-2; HE205/0237-2_1_1; HE205/0237-3; HE205/0237-3_1_1; HE205/0238-1; HE205/0238-1_1_1; HE205/0238-2; HE205/0238-2_1_1; HE205/0238-3; HE205/0238-3_1_1; HE205/0252-1; HE205/0252-1_1_1; HE205/0253-1; HE205/0253-1_1_1; HE205/0254-1; HE205/0254-1_1_1; HE205/0255-1; HE205/0255-1_1_1; HE205/0256-1; HE205/0256-1_1_1; HE205/0258-3; HE205/0258-3_1_1; HE205/0258-4; HE205/0258-4_1_1; HE205/0258-5; HE205/0258-5_1_1; HE205/0259-1; HE205/0259-1_1_1; HE205/0259-2; HE205/0259-2_1_1; HE205/0259-4; HE205/0259-4_1_1; HE205/0260-1; HE205/0260-1_1_1; HE205/0260-2; HE205/0260-2_1_1; HE205/0260-4; HE205/0260-4_1_1; HE205/0272-1; HE205/0272-1_1_1; HE205/0272-2; HE205/0272-2_1_1; HE205/0272-3; HE205/0272-3_1_1; HE205/0273-1; HE205/0273-1_1_1; HE205/0273-2; HE205/0273-2_1_1; HE205/0273-3; HE205/0273-3_1_1; HE205/0274-1; HE205/0274-1_1_1; HE205/0274-2; HE205/0274-2_1_1; HE205/0274-3; HE205/0274-3_1_1; HE205/0276-1; HE205/0276-1_1_1; HE205/0276-2; HE205/0276-2_1_1; HE205/0276-3; HE205/0276-3_1_1; HE205/0277-1; HE205/0277-1_1_1; HE205/0277-2; HE205/0277-2_1_1; HE205/0277-3; HE205/0277-3_1_1; HE205/0278-1; HE205/0278-1_1_1; HE205/0278-2; HE205/0278-2_1_1; HE205/0278-3; HE205/0278-3_1_1; HE205/0286-1; HE205/0286-1_1_1; HE205/0288-1; HE205/0288-1_1_1; HE205/0305-1; HE205/0305-1_1_1; HE205/0306-1; HE205/0306-1_1_1; HE205/0307-1; HE205/0307-1_1_1; HE205/0308-1; HE205/0308-1_1_1; HE205/0309-1; HE205/0309-1_1_1; HE205/0311-1; HE205/0311-1_1_1; HE205/0311-2; HE205/0311-2_1_1; HE205/0311-3; HE205/0311-3_1_1; HE205/0313-1; HE205/0313-1_1_1; HE205/0313-2; HE205/0313-2_1_1; HE205/0313-3; HE205/0313-3_1_1; HE205/0314-1; HE205/0314-1_1_1; HE205/0314-2; HE205/0314-2_1_1; HE205/0314-3; HE205/0314-3_1_1; HE205/0320-1; HE205/0320-1_1_1; HE205/0321-1; HE205/0321-1_1_1; HE205/0322-1; HE205/0322-1_1_1; HE205/0323-1; HE205/0323-1_1_1; HE205/0324-1; HE205/0324-1_1_1; HE205/0325-1; HE205/0325-1_1_1; HE214; HE214/1093-1; HE214/1093-1_1_1; HE214/1093-2; HE214/1093-2_1_1; HE214/1093-3; HE214/1093-3_1_1; HE214/1094-1; HE214/1094-1_1_1; HE214/1094-2; HE214/1094-2_1_1; HE214/1094-3; HE214/1094-3_1_1; HE214/1097-11; HE214/1097-11_1_1; HE214/1097-4; HE214/1097-4_1_1; HE214/1097-5; HE214/1097-5_1_1; HE214/1098-1; HE214/1098-1_1_1; HE214/1098-2; HE214/1098-2_1_1; HE214/1098-3; HE214/1098-3_1_1; HE214/1099-1; HE214/1099-1_1_1; HE214/1099-2; HE214/1099-2_1_1; HE214/1099-3; HE214/1099-3_1_1; HE214/1100-1; HE214/1100-1_1_1; HE214/1100-2; HE214/1100-2_1_1; HE214/1100-3; HE214/1100-3_1_1; HE214/1101-1; HE214/1101-1_1_1; HE214/1101-2; HE214/1101-2_1_1; HE214/1101-3; HE214/1101-3_1_1; HE214/1103-1; HE214/1103-1_1_1; HE214/1103-2; HE214/1103-2_1_1; HE214/1103-3; HE214/1103-3_1_1; HE214/1104-1; HE214/1104-1_1_1; HE214/1104-2; HE214/1104-2_1_1; HE214/1104-3; HE214/1104-3_1_1; HE214/1109-1; HE214/1109-1_1_1; HE214/1110-1; HE214/1110-1_1_1; HE214/1111-1; HE214/1111-1_1_1; HE214/1112-1; HE214/1112-1_1_1; HE214/1113-1; HE214/1113-1_1_1; HE214/1115-1; HE214/1115-1_1_1; HE214/1115-2; HE214/1115-2_1_1; HE214/1115-3; HE214/1115-3_1_1; HE214/1144-1; HE214/1144-1_1_1; HE214/1152-1; HE214/1152-1_1_1; HE214/1155-1; HE214/1155-1_1_1; HE214/1156-1; HE214/1156-1_1_1; HE214/1159-1; HE214/1159-1_1_1; HE214/1164-1; HE214/1164-1_1_1; HE214/1168-1; HE214/1168-
    Type: Dataset
    Format: text/tab-separated-values, 219010 data points
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  • 2
    Publication Date: 2022-02-06
    Description: Sea ice is the major constraint on human activities in the Southern Ocean. Depending on a vessel's ice class, human mobility may be restricted or even prevented altogether by sea-ice conditions. This may imply limited access to research or monitoring stations, preferred fishing grounds or attractive tourist sites. Here, we introduce a statistical model that evaluates the sea-ice cover with two measures: 1) accessibility (i.e. the probability that a given area is navigable by vessels at a given time) and 2) repeated accessibility (i.e. the probability that a given area is navigable by vessels at a given time and again at least once within a defined timespan). We use daily sea-ice concentration data from 2002 to 2020 to demonstrate this tool and its functioning regarding the spatiotemporal variability of sea-ice cover in the wider Weddell Sea region. These findings reflect known characteristics of sea-ice distribution and dynamics in the Weddell Sea, confirming the functionality of our simple tool for determining repeated accessibility of certain areas. Such a tool may facilitate the planning of research and monitoring activities in the Southern Ocean, as well as in Arctic seas.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
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  • 3
    Publication Date: 2022-09-26
    Description: Data on marine biota exist in many formats and sources, such as published literature, data repositories, and unpublished material. Due to this heterogeneity, information is difficult to find, access and combine, severely impeding its reuse for further scientific analysis and its long-term availability for future generations. To address this challenge, we present CRITTERBASE, a publicly accessible data warehouse and interactive portal that currently hosts quality-controlled and taxonomically standardized presence/absence, abundance, and biomass data for 18,644 samples and 3,664 benthic taxa (2,824 of which at species level). These samples were collected by grabs, underwater imaging or trawls in Arctic, North Sea and Antarctic regions between the years 1800 and 2014. Data were collated from literature, unpublished data, own research and online repositories. All metadata and links to primary sources are included. We envision CRITTERBASE becoming a valuable and continuously expanding tool for a wide range of usages, such as studies of spatio-temporal biodiversity patterns, impacts and risks of climate change or the evidence-based design of marine protection policies.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
    Format: application/pdf
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  • 4
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    In:  EPIC3CCAMLR Working Group on Ecosystem, Monitoring and Management, Online, 2022-07-04-2022-07-11
    Publication Date: 2022-10-04
    Description: During the Continental Shelf Multidisciplinary Flux Study (COSMUS) expedition from February to March 2021 aboard RV Polarstern (expedition ID: PS124) (Hellmer & Holtappels, 2021), a large spawning aggregation of notothenioid icefish (Neopagetopsis ionah, Nybelin 1947) was discovered in the southern Weddell Sea. The CCAMLR community was informed of this discovery by Germany in COMM CIRC 22/10 and SC CIRC 22/08 earlier this year (17 January 2022). Purser et al. (2022) report on the spawning aggregation in Current Biology. Here we provide detailed information on the active fish nest aggregation and on additional icefish nesting sites observed in the Filchner Trough area (Knust & Schröder, 2014; Schröder, 2016; Riginella et al., 2021; Purser et al., 2022; Purser et al., in review).
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
    Format: application/pdf
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  • 5
    Publication Date: 2022-10-04
    Description: In times of rapidly increasing multiple anthropogenic impacts on polar marine ecosystems and biodiversity, understanding, sustainable-use management and protection of these biotas is a matter of great concern. Research on marine biotas and their interactions with each other and the environment is fundamental in that regard, but available data are still diverse and scattered, as they exist in many formats and sources, such as published literature, data repositories, and unpublished material. Due to this heterogeneity, information is difficult to find, access and combine, severely impeding its reuse for further scientific analysis and its long-term availability for future generations. Scientists, decision makers, and the public require a versatile tool to compile, synthesize and manage biodiversity data in a transparent, efficient and comprehensible way and with high-level quality assurance. To address this challenge, we developed, implemented and utilize CRITTERBASE (https://critterbase.awi.de), a publicly accessible data warehouse and interactive portal that complies with the FAIR principles (Findability, Accessibility, Interoperability and Reusability of data). Its purpose is to complement long-term data storage repositories by providing powerful but easy-to-use data ingest, retrieval and exploration tools, thus facilitating the analysis of biodiversity data across multiple spatial and temporal scales and in wider contexts. Currently, it hosts quality-controlled and taxonomically standardized presence/absence, abundance, and biomass data from Arctic, North Sea and Antarctic regions, collated from the literature, unpublished data, own research and online repositories (with all metadata and links to primary sources included), for 3,173 polar benthic taxa (2,444 of which at species level) from 12,209 samples collected with grabs, underwater imaging or trawls between 1800 and 2014. CRITTERBASE is currently holding benthic biodiversity data only but because of its comprehensive and flexible data model it is suited to include information about further biotas and habitats. Therefore, we envision it becoming a valuable and continuously expanding tool for a wide range of usages, such as studies of spatio-temporal biodiversity patterns, impacts and risks of climate change or the evidence-based design of marine protection policies.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 6
    Publication Date: 2022-08-30
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
    Format: application/pdf
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  • 7
    Publication Date: 2024-04-29
    Description: 〈jats:p〉Abstract. Systematic long-term studies on ecosystem dynamics are largely lacking from the East Antarctic Southern Ocean, although it is well recognized that they are indispensable to identify the ecological impacts and risks of environmental change. Here, we present a framework for establishing a long-term cross-disciplinary study on decadal timescales. We argue that the eastern Weddell Sea and the adjacent sea to the east, off Dronning Maud Land, is a particularly well suited area for such a study, since it is based on findings from previous expeditions to this region. Moreover, since climate and environmental change have so far been comparatively muted in this area, as in the eastern Antarctic in general, a systematic long-term study of its environmental and ecological state can provide a baseline of the current situation, which will be important for an assessment of future changes from their very onset, with consistent and comparable time series data underpinning and testing models and their projections. By establishing an Integrated East Antarctic Marine Research (IEAMaR) observatory, long-term changes in ocean dynamics, geochemistry, biodiversity, and ecosystem functions and services will be systematically explored and mapped through regular autonomous and ship-based synoptic surveys. An associated long-term ecological research (LTER) programme, including experimental and modelling work, will allow for studying climate-driven ecosystem changes and interactions with impacts arising from other anthropogenic activities. This integrative approach will provide a level of long-term data availability and ecosystem understanding that are imperative to determine, understand, and project the consequences of climate change and support a sound science-informed management of future conservation efforts in the Southern Ocean. 〈/jats:p〉
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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