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Continuous plankton records: A possible reversal in the downward trend in the abundance of the plankton of the North Sea and the Northeast Atlantic
Colebrook, J.M.; Robinson, G.A.; Hunt, H.G.; Roskell, J.; John, A.W.G.; Bottrell, H.H.; Lindley, J.A.; Collins, N.R.; Halliday, N.C. (1984). Continuous plankton records: A possible reversal in the downward trend in the abundance of the plankton of the North Sea and the Northeast Atlantic. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 41(3): 304-306
In: ICES Journal of Marine Science. Academic Press: London. ISSN 1054-3139; e-ISSN 1095-9289, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Abundance
    Aquatic communities > Plankton > Phytoplankton
    Aquatic communities > Plankton > Zooplankton
    Surveys > Biological surveys > Plankton surveys
    Copepoda [WoRMS]; Pseudocalanus elongatus (Brady, 1865) [WoRMS]
    Marien/Kust
Auteurs  Top 
  • Colebrook, J.M.
  • Robinson, G.A.
  • Hunt, H.G.
  • Roskell, J.
  • John, A.W.G.
  • Bottrell, H.H.
  • Lindley, J.A., meer
  • Collins, N.R.
  • Halliday, N.C.
Abstract
    Continuous Plankton Recorder survey data has shown a clear systematic pattern in the year-to-year changes in abundance of plankton in the North East Atlantic and North Sea in the form of a quasi-linear downward trend. It is shown by 14 of 24 species of phytoplankton and 16 of 24 species of zooplankton, though the extent of the trend varies between species and areas. However the 1983 data show there is perhaps an indication of the beginning of a reversal in this downward trend. Fifth-order polynomial curves fitted to plankton data show an upward curve. So does the zooplankton graph of first principal components with a fitted autoregressive moving average model including predicted average up to 1993.
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