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Process length variation in cysts of a dinoflagellate, Lingulodinium machaerophorum, in surface sediments: investigating its potential as salinity proxy
Mertens, K.N.; Ribeiro, S.; Bouimetarhan, I.; Caner, H.; Combourieu-Nebout, N.; Dale, B.; de Vernal, A.; Ellegaard, M.; Filipova, M.; Godhe, A.; Goubert, E.; Grøsfjeld, K.; Holzwarth, U.; Kotthoff, U.; Leroy, S.A.G.; Londeix, L.; Marret, F.; Matsuoka, K.; Mudie, P.J.; Naudts, L.; Peña-Manjarrez, J.L.; Persson, A.; Popescu, S.-M.; Pospelova, V.; Sangiorgi, F.; van der Meer, M.T.J.; Vink, A.; Zonneveld, K.A.F.; Vercauteren, D.; Vlassenbroeck, J.; Louwye, S. (2009). Process length variation in cysts of a dinoflagellate, Lingulodinium machaerophorum, in surface sediments: investigating its potential as salinity proxy, in: Mertens, K.N. Tracing hydrological millennial-scale cycles in the Late Quaternary of the Cariaco Basin and the southern Gulf of Cádiz using coccoliths and dinoflagellate cycts = Opsporing van hydrologische cycli op millenium-schaal in het late Quartair van het Cariaco Bekken en de zuidelijke Golf van Cádiz met behulp van coccolieten en dinoflagellatencysten. pp. 74-93
In: Mertens, K.N. (2009). Tracing hydrological millennial-scale cycles in the Late Quaternary of the Cariaco Basin and the southern Gulf of Cádiz using coccoliths and dinoflagellate cycts = Opsporing van hydrologische cycli op millenium-schaal in het late Quartair van het Cariaco Bekken en de zuidelijke Golf van Cádiz met behulp van coccolieten en dinoflagellatencysten. PhD Thesis. Department of Biology/Ghent University, Department of Geology and Soil Science: Gent. 205 pp., more
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Mertens, K.N.; Ribeiro, S.; Bouimetarhan, I.; Caner, H.; Combourieu-Nebout, N.; Dale, B.; de Vernal, A.; Ellegaard, M.; Filipova, M.; Godhe, A.; Goubert, E.; Grøsfjeld, K.; Holzwarth, U.; Kotthoff, U.; Leroy, S.A.G.; Londeix, L.; Marret, F.; Matsuoka, K.; Mudie, P.J.; Naudts, L.; Peña-Manjarrez, J.L.; Persson, A.; Popescu, S.-M.; Pospelova, V.; Sangiorgi, F.; van der Meer, M.T.J.; Vink, A.; Zonneveld, K.A.F.; Vercauteren, D.; Vlassenbroeck, J.; Louwye, S. (2009). Process length variation in cysts of a dinoflagellate, Lingulodinium machaerophorum, in surface sediments: investigating its potential as salinity proxy. Mar. Micropaleontol. 70(1-2): 54-69. https://dx.doi.org/10.1016/j.marmicro.2008.10.004, more
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Keywords
    Biometry
    Dinoflagellates
    Properties > Chemical properties > Salinity > Palaeosalinity
    Lingulodinium machaerophorum (Deflandre & Cookson) D.Wall, 1967 † [WoRMS]; [WoRMS]
    Marine/Coastal
Author keywords
    Lingulodinium machaerophorum; Processes; Lingulodinium polyedrum; Biometry; Palaeosalinity; Dinoflagellate cysts
Authors  Top 
  • Mertens, K.N., more
  • Ribeiro, S.
  • Bouimetarhan, I.
  • Caner, H.
  • Combourieu-Nebout, N.
  • Dale, B.
  • de Vernal, A.
  • Ellegaard, M.
  • Filipova, M.
  • Godhe, A., more
  • Goubert, E.
  • Grøsfjeld, K.
  • Holzwarth, U.
  • Kotthoff, U.
  • Leroy, S.A.G.
  • Londeix, L.
  • Marret, F.
  • Matsuoka, K.
  • Mudie, P.J.
  • Naudts, L., more
  • Peña-Manjarrez, J.L.
  • Persson, A.
  • Popescu, S.-M.
  • Pospelova, V.
  • Sangiorgi, F.
  • van der Meer, M.T.J.
  • Vink, A.
  • Zonneveld, K.A.F.
  • Vercauteren, D., more
  • Vlassenbroeck, J., more
  • Louwye, S., more
Abstract
    A biometrical analysis of the dinoflagellate cyst Lingulodinium machaerophorum [Deflandre, G., Cookson, I.C., 1955. Fossil microplankton from Australia late Mesozoic and Tertiary sediments. Australian journal of Marine and Freshwater Research 6: 242-313.] Wall, 1967 in 144 globally distributed surface sediment samples revealed that the average process length is related to summer salinity and temperature at a water depth of 30m by the equation (salinity/temperature) = (0.078*average process length + 0.534) with R2 = 0.69. This relationship can be used to reconstruct palaeosalinities, albeit with caution. The particular ecological window can be associated with known distributions of the corresponding motile stage Lingulodinium polyedrum (Stein) Dodge, 1989. Confocal laser microscopy showed that the average process length is positively related to the average distance between process bases (R2 = 0.78), and negatively related to the number of processes (R2 = 0.65). These results document the existence of two end members in cyst formation: one with many short, densely distributed processes and one with a few, long, widely spaced processes, which can be respectively related to low and high salinity/temperature ratios. Obstruction during formation of the cysts causes anomalous distributions of the processes. From a biological perspective, processes function to facilitate sinking of the cysts through clustering.
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