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Vertical migration of Eurytemora (Crustacea, Copepoda): a compromise between the risks of predation and decreased fecundity
Vuorinena, I. (1987). Vertical migration of Eurytemora (Crustacea, Copepoda): a compromise between the risks of predation and decreased fecundity. J. Plankton Res. 9(6): 1037-1046. https://dx.doi.org/10.1093/plankt/9.6.1037
In: Journal of Plankton Research. Oxford University Press: New York,. ISSN 0142-7873; e-ISSN 1464-3774, meer
Peer reviewed article  
Beschikbaar in  Auteur 
Trefwoorden
    Fauna > Aquatic organisms > Aquatic animals > Shellfish > Marine organisms > Marine crustaceans
    Interspecific relationships > Predation
    Copepoda [WoRMS]; Eurytemora hirundoides (Nordquist, 1888) [WoRMS]
    Finland, Archipelago Sea [Marine Regions]
    Marien/Kust
Auteur  Top 
  • Vuorinena, I.
Abstract
    In the Archipelago Sea (SW Finland), the daily vertical migration of the copedod, Eurytemora hirundoides (Nordqvist) keeps its reproduction below the maximal potential rate. According to results from laboratory cultures, the low temperatures encountered in deep water increase the development time of the eggs from 1.1 to 1.7 days and the generation time from 31.1 to 36.8 days. A possible reason for this apparently disadvantageous behaviour could be the avoidance of visual predation by planktivorous fish. Theoretical calculations show that migration is advantageous when the daily mortality caused by predation in the surface layer exceeds 7.5%. (DBO)
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