Sticholonche zanclea (Protozoa, Actinopoda) in fecal pellets of copepods and Euphausia sp. in Brazilian coastal waters

Fecal pellets produced by mesozooplanktonic copepods (Centropages velificatus and Paracalanus parvus) and macrozooplanktonic Euphausiacea (Euphausia sp.) were examined using scanning electron microscopy. Fragments of the protozoan Sticholonche zanclea were found in both copepod and in Euphausia sp....

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Bibliographic Details
Published in:Brazilian journal of biology 2006-08, Vol.66 (3), p.839-847
Main Author: Eskinazi-Sant'Anna, E M
Format: Article
Language:English
Subjects:
Actinopoda
Animals
BIOLOGY
Brazil
Centropages velificatus
Copepoda
Copepoda - parasitology
Eukaryota - classification
Eukaryota - isolation & purification
Eukaryota - ultrastructure
Euphausia
Euphausiacea
Euphausiacea - parasitology
fecal pellets
Feces - parasitology
feeding
Microscopy, Electron, Scanning
Paracalanus parvus
protozoa
Seasons
Seawater
Zanclea
zooplankton
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Summary:Fecal pellets produced by mesozooplanktonic copepods (Centropages velificatus and Paracalanus parvus) and macrozooplanktonic Euphausiacea (Euphausia sp.) were examined using scanning electron microscopy. Fragments of the protozoan Sticholonche zanclea were found in both copepod and in Euphausia sp. fecal pellets, even when the abundance of the protozoan in the water was low. The results suggest that S. zanclea is an important food resource for different trophic levels, including meso- and macrozooplankton, in Brazilian coastal waters.
ISSN:1519-6984
1678-4375
1519-6984
DOI:10.1590/S1519-69842006000500009