Top-Down Effects of an Exotic Serpulid Polychaete on Natural Plankton Assemblage of Estuarine and Brackish Systems in the SW Atlantic
| Autor: | Jerónimo Pan, M. Alejandra Marcoval |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
geography
Chlorophyll a Polychaete geography.geographical_feature_category Ecology Brackish water Estuary Biology Plankton biology.organism_classification chemistry.chemical_compound Ficopomatus enigmaticus Oceanography chemistry Phytoplankton Microcosm Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Coastal Research. 298:1226-1235 |
| ISSN: | 1551-5036 0749-0208 |
| DOI: | 10.2112/jcoastres-d-12-00163.1 |
| Popis: | Pan, J. and Marcoval, M.A., 2014. Top-down effects of an exotic serpulid polychaete on natural plankton assemblage of estuarine and brackish systems in the SW Atlantic. The invasive reef-building polychaete Ficopomatus enigmaticus (Fauvel, 1923) has become well-established in many temperate brackish waters. To analyze preferences for different planktonic food sources, short-term (∼1.5 h), grazing microcosm experiments were performed in situ (n = 3), at two water bodies, a coastal lagoon (Mar Chiquita, MC) and the mixohaline stretches of a coastal creek (La Tigra, LT), Argentina, in January 2007. Relative clearance rates of phytoplankton were assessed for chlorophyll a size-fractions and for different groups of nanoplanktonic and microplanktonic protists. The two locations showed significant differences in plankton community structure. Nanoeukaryotes were the dominant group at both locations; the second most-abundant groups were diatoms at MC and ciliates at LT. There were significant differences ... |
| Databáze: | OpenAIRE |
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