Benthic fauna in soft sediments from the Barents and Pechora Seas

Andrade, Hector; Renaud, Paul E.; Włodarska‐Kowalczuk, Maria; Pardus, Joanna; Carroll, Michael L.; Cochrane, Sabine; Dahle, S.; Palerud, Rune

doi:10.1594/pangaea.877932

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Currently, CRITTERBASE hosts data on benthos from Arctic, North Sea, and Antarctic regions (see Table 1 ), as these are the geographic foci of our research at the Alfred Wegener Institute (AWI). CRITTERBASE uses a shared data model for data from all geographic regions that safeguards the integrity of data regardless of whether they are collated from literature 13 , cooperating researchers, own research, archives or repositories 14 . To this end, it utilizes a single standardized workflow (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…These previous efforts were merged into a general data model through iterative discussions with the data warehouse developers. We then ingested already available data into CRITTERBASE (Table 1 ), including those available from PANGAEA 14 and our own research. The data were then quality checked by AWI experts in data collection and taxonomic identification of benthic communities.…”

Section: Methodsmentioning

confidence: 99%

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CRITTERBASE, a science-driven data warehouse for marine biota

et al. 2022

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Data on marine biota exist in many formats and sources, such as published literature, data repositories, and unpublished material.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 Data were collated from literature, unpublished data, own research and online repositories.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.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

CRITTERBASE, a science-driven data warehouse for marine biota

et al. 2022

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Multi-scale data on macrobenthic biodiversity and environmental variables along Eurasian Arctic shelf seas

Hansen,

Piepenburg,

Pantiukhin

et al. 2019

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Origin of marine invertebrate larvae on an Arctic inflow shelf

Descôteaux

Huserbråten

Jørgensen

et al. 2022

Mar. Ecol. Prog. Ser.

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Many benthic invertebrate taxa possess planktonic early life stages which drift with water currents and contribute to dispersal of the species, sometimes reaching areas beyond the current ranges of the adults. Until recently, it had been difficult to identify planktonic larvae to species level due to lack of distinguishing features, preventing detection of expatriate species. Here, we used DNA metabarcoding of the COI gene to obtain species-level identification of early life stages of benthic invertebrates in zooplankton samples from the Barents Sea and around Svalbard, where, regionally, large volumes of warm Atlantic Water enter the Arctic from the south. We compared the larval community in the water column to the adult community on the seafloor to identify mismatches. In addition, we implemented particle tracking analysis to identify the possible areas of origin of larvae. Our results show that 30-45% of larval taxa—largely polychaetes and nudibranchs—were not local to the sampling area, though most were found nearby in the Barents Sea. In the particle tracking analysis, some larvae originating along the Norwegian coast were capable of reaching the northwest coast of Svalbard within 3 mo, but larvae found east of Svalbard had a more constrained possible area of origin which did not extend to the Norwegian coast. This study highlights largely regional-scale larval connectivity in the Barents Sea but demonstrates the potential for some long-lived larval taxa to travel to Svalbard and the Barents Sea from further south.

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Benthic fauna in soft sediments from the Barents and Pechora Seas

Cited by 3 publications

References 7 publications

CRITTERBASE, a science-driven data warehouse for marine biota

CRITTERBASE, a science-driven data warehouse for marine biota

Multi-scale data on macrobenthic biodiversity and environmental variables along Eurasian Arctic shelf seas

Origin of marine invertebrate larvae on an Arctic inflow shelf

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