However, this initial approach leaded Sherr and collaborators in 1986 to estimate the grazing rates of heterotrophic nanoplankton
on bacterioplankton using inhibitors, as well as Wheeler & Kirchman (1986) to evaluate the utilization of inorganic and organic nitrogen by bacteria in marine systems applying antimicrobials in the medium, thus opening the way for other research using antimicrobials in different fields.
The organisms also can be classified according to their size as picoplankton (0.2-2 [micro]m), nanoplankton
(2.1-20 [micro]m), microplankton (20.1-200 [micro]m), mesoplanktlon (201-2000 [micro]m) and macroplankton (> 2000 [micro]m) [1, 2].
Ciliates are the dominant grazers on pico- and nanoplankton
in a shallow, naturally highly eutrophic lake.
east coast due to their eutrophication and higher temperatures: 1) the phytoplankton has shifted toward communities with abundant picoplankton and nanoplankton
, and 2) the species composition changed from an assemblage consisting mainly of immobile centric diatoms to one composed of flagellated species (Harding, 1994; Bricelj and Lonsdale, 1997; Kennish, 2001; Trice et al, 2004; Wasniak and Gilbert, 2004; Kemp et al, 2005; Mahoney et al.
Some factors in the use of nanoplankton
cultures as food for larval and juvenile bivalves.
These free-living stages feed on nanoplankton
The highest densities were recorded in the Parana river and Baia River in September (BAI-S) and Baia River in December (BAI-D) with the highest density values for the Bacillariophyceae microplankton and Bacillariophyceae nanoplankton
Counting used the nanoplankton
counting chamber, and genus identification used the 400x Leica light microscope.
Tintinnids which belong to the group Ciliophora constitute a principal component of marine microzooplankton and are major consumers of nanoplankton
in the pelagic food web.
Trophic interactions among heterotrophic microplankton, nanoplankton
, and bacteria in Lake Constance.