Under-ice fauna biomass, carbon demand, and secondary production under Arctic pack ice north of Svalbard during the Polarstern expedition PS92 in spring 2015 ...

• Main Author: Ehrlich, Julia
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Arctic Ocean; Biomass; Carbon demand; pack ice; Secondary production; Svalbard; sympagic fauna; under-ice fauna; Zooplankton; Event label; Campaign; Station label; Cast number; Gear; Location; DATE/TIME; LATITUDE; LONGITUDE; Trawling distance; Volume; Tisbe spp., biomass as carbon; Oithona sp., biomass as carbon; Calanus hyperboreus, biomass as carbon; Calanus glacialis, biomass as carbon; Calanus finmarchicus, biomass as carbon; Nauplii, biomass as carbon; Paraeuchaeta spp., biomass as carbon; Metridia longa, biomass as carbon; Clausocalanidae, biomass as carbon; Themisto spp., biomass as carbon; Themisto libellula, biomass as carbon; Apherusa glacialis, biomass as carbon; Onisimus glacialis, biomass as carbon; Thysanoessa longicaudata, biomass as carbon; Isopoda, biomass as carbon; Zoaea, larvae, biomass as carbon; Cirripedia, larvae, biomass as carbon; Chaetognatha, biomass as carbon; Eukrohnia hamata, biomass as carbon; Parasagitta elegans, biomass as carbon; Appendicularia, biomass as carbon; Osteichthyes, larvae, biomass as carbon; Limacina helicina, biomass as carbon; Clione limacina, biomass as carbon; Polychaeta, biomass as carbon; Trochophora, larvae, biomass as carbon; Hydrozoa, biomass as carbon; Xenacoelomorpha, biomass as carbon; Tisbe spp., carbon demand; Oithona sp., carbon demand; Arctic; Calanus finmarchicus; Calanus glacialis; Calanus hyperboreus; Clione limacina; Limacina helicina; Themisto; Themisto libellula
• Online Access: https://dx.doi.org/10.1594/pangaea.931610; https://doi.pangaea.de/10.1594/PANGAEA.931610

We investigated the biomass, carbon demand, and secondary production of under-ice fauna (here metazoans >300 μm) at eight stations in the Arctic Ocean, north of Svalbard. Sampling was conducted during spring in 2015 with the Surface and Under Ice Trawl (SUIT). The biomass (µgCm-²) for under-ice fauna taxa was calculated by multiplying abundances (ind. m-²) of each taxon obtained from Ehrlich et al. (2020) by the carbon content per individual of this taxon. The mass-specific ingestion rate of each taxon was multiplied by the total biomass of that taxon at every station to determine the carbon demand per day (µgC/m²/day). The secondary production of under-ice fauna was calculated by using a P/B ratio from Forest et al. (2014) for large Arctic mesozooplankton species. ...