IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Grazing loss-rates in pico- and nanoplankton in the Faroe-Shetland Channel and their different relations with prey density
Kuipers, B.; Witte, H.; Van Noort, G.J.; Gonzalez, S. (2003). Grazing loss-rates in pico- and nanoplankton in the Faroe-Shetland Channel and their different relations with prey density. J. Sea Res. 50(1): 1-9. dx.doi.org/10.1016/s1385-1101(03)00043-1
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101, more
Peer reviewed article  

Available in Authors 

Keywords
    Grazing; Nannoplankton; Picoplankton; Predator prey interactions; ANE, Faeroe-Shetland Channel [Marine Regions]; Marine

Authors  Top 
  • Kuipers, B.
  • Witte, H.
  • Van Noort, G.J.
  • Gonzalez, S.

Abstract
    In a number of dilution experiments performed in different surface water masses of the Faroe-Shetland Channel loss-rates due to grazing were determined for heterotrophic bacteria and three size categories of small phytoplankton between 1 and 10 µm. The prey abundance and loss-rates varied considerably among stations; grazing on picoplankton was strongly correlated with prey abundance while no correlation between grazing and abundance was detectable for the larger prey. Grazing control, assumed to be exerted by unicellular grazers in general, seems thus to be restricted to the smaller microbial components of the food web. The absence of density-dependent grazing of nanophytoplankton (2-5 µm) and larger algae suggests that the microzooplankton, dominated by ciliates, are not as tightly linked to their prey populations as heterotrophic nanoflagellates.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors