Blar i forfatter "Gaardsted, Frank"

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    • Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope 

      Dong, Huizi; Zhou, Meng; Smith, Walker O.; Li, Baosheng; Hu, Ziyuan; Basedow, Sünnje Linnéa; Gaardsted, Frank; Zhang, Zhaoru; Zhong, Yisen (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-06)
      Diapausing populations of Calanus finmarchicus at depth in the Lofoten Basin (LB) return to the continental shelf and slope off the Lofoten-Vesterålen Islands during the phytoplankton spring bloom to feed and spawn, forming surface swarms with a great abundance. To study how overwintering populations of C. finmarchicus move with the deep currents and return to the shelf, Lagrangian transport ...

    • Jellyfish summer distribution, diversity and impact on fish farms in a Nordic fjord 

      Halsband, Claudia; Majaneva, Sanna Kristiina; Hosia, Aino; Emaus, Per; Gaardsted, Frank; Zhou, Qin; Nøst, Ole Anders; Renaud, Paul Eric (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03-19)
      Jellyfish can cause high mortality of farmed fish and hence significant economic losses for the aquaculture industry. Despite their socio-economic importance, distribution and diversity data on gelatinous plankton are scarce from northern Norwegian fjords and other Nordic systems. Intense blooms of jellyfish have repeatedly been observed in Ryggefjord, Finnmark (Norway), sometimes concurrent with ...

    • On the use of the HUGIN 1000 HUS Autonomous Underwater Vehicle for high resolution zooplankton measurements 

      Pedersen, Ole Petter; Gaardsted, Frank; Lågstad, Petter Arthur; Tande, Kurt Steinar (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      This paper evaluates and tests the HUGIN 1000 HUS AUV as a carrier platform for the Laser Optical Plankton Counter (LOPC). The LOPC was mounted outside on top of the carrier platform, and the tests confirm that this concept did not create turbulence and zooplankton avoidance. A negligible velocity difference between the flow passing through the sampling tube and the AUV speed was detected. The ...