The introduction to the 2022 study describes Calanus finmarchicus as an oceanic species that dominates zooplankton biomass in Faroese waters. This is the background account adopted by the article, not the result of a comprehensive current survey.
The 2022 and 2024 studies place the species in the North Atlantic, and the former describes an extent from the Gulf of Maine to the North Sea. The WoRMS regional list also includes the Irish economic zone and the St. Lawrence Estuary; these are source reports that do not verify present occurrence or a complete range at every location.
Ahmad reads the approved sentences themselves, nothing more.
1De novo assembly of a transcriptome for Calanus finmarchicus (Crustacea, Copepoda): the dominant zooplankter of the North Atlantic OceanSRC-DSC-2923071875
4Optimal phenology of life history events in Calanus finmarchicus: exit from diapause in relation to interannual variation in spring bloom timing and predationSRC-DSC-4F4293FB5B
5Declining Pre-bloom Calanus finmarchicus Egg Production Adjacent to Two Major Overwintering Regions in the Northeastern AtlanticSRC-DSC-34F100040B
The introductions to the 2022 and 2024 studies describe the species as a secondary producer and a trophic link connecting primary producers with fishes, seabirds and whales. The 2024 study mentions the contribution of its faecal pellets to carbon transport from the surface to deep waters; this is the articles’ background, not a measurement of every individual’s role.
The introduction to the 2022 study states that Calanus finmarchicus eggs are the dominant food of first-feeding Atlantic cod larvae over the Faroe shelf, and that the species is an essential food source for several pelagic fish stocks. This attributes the account to the regional source.