BarentsPortal

The bloom situation in the Barents Sea is covered on a regular basis both during the survey coverage in August-October and on the standard sections Fugløya-Bear Island and Vardø-Nord. From these surveys the chlorophyll concentration is measured in water samples taken from standard depths down to 100 m depth. This gives an indication on the primary production in the area. In addition to the chlorophyll concentration, part of the region is covered using a fluorometer on the CTD making continuous profiles of fluorescence at station from surface to bottom depth. From 2005 data on species composition and abundance have been retrieved from water samples, both during the Ecosystem survey and on the standard sections, covering approximately the same area as for zooplankton. In addition to observations, the primary production is simulated using numerical models.