Monthly measurements of dissolved nutrients (nitrate, nitrite, phosphate, silicate) in a sub-Arctic fjord, Ramfjord in Tromsø, Norway between September 2020 and August 2021

Fjord water was collected on a monthly basis between September 2020 and August 2021 from 5m and 30m depth in a sub-Arctic fjord (Ramfjorden, Tromso, Norway) with a GoFlo (General Oceanics). Upon arrival on shore, samples for dissolved nutrient concentrations were syringe-filtered through a 0.2 mum filter and collected in a falcon tube. The samples were immediately frozen at -20C until further analysis. Concentrations of dissolved silicate, nitrate, nitrite and phosphate were measured with a QuAAtro nutrient analyzer (SEAL Analytical).