Fig. 4From: Dinoflagellates and ciliates at Helgoland Roads, North SeaMean daily cell concentration of (a) the dinoflagellate Noctiluca scintillans (n L−1) during the years 1962–2009 and (b) the ciliate Myrionecta rubra (n × 10³ L−1) during the years 1999–2009 of long-term monitoring at Helgoland RoadsBack to article page