FRAGILIDIUM CF MEXICANUM, A THECATE MIXOTROPHIC DINOFLAGELLATE WHICH IS PREY FOR AND A PREDATOR ON COOCCURRING THECATE HETEROTROPHIC DINOFLAGELLATE PROTOPERIDINIUM CF DIVERGENS

Authors
JEONG HJ LEE CW YIH WH KIM JS
Citation
Hj. Jeong et al., FRAGILIDIUM CF MEXICANUM, A THECATE MIXOTROPHIC DINOFLAGELLATE WHICH IS PREY FOR AND A PREDATOR ON COOCCURRING THECATE HETEROTROPHIC DINOFLAGELLATE PROTOPERIDINIUM CF DIVERGENS, Marine ecology. Progress series, 151(1-3), 1997, pp. 299-305
Citations number
30
Categorie Soggetti
Marine & Freshwater Biology",Ecology
Journal title
Marine ecology. Progress series → ACNP
ISSN journal
01718630
Volume
151
Issue
1-3
Year of publication
1997
Pages
299 - 305
Database
ISI
SICI code
0171-8630(1997)151:1-3<299:FCMATM>2.0.ZU;2-B
Abstract
The thecate heterotrophic dinoflagellate Protoperidinium cf. divergens and the thecate mixotrophic dinoflagellate Fragilidium cf. mexicanum feed on each other. In general, F. cf. mexicanum is the predominant pr edator in this reciprocal predation. At initial concentration ratios l ess than or equal to 0.4 (F. cf, mexicanum: P. cf. divergens), both sp ecies fed on each other, but did not seriously affect the other's popu lation. At ratios greater than or equal to 0.8, P. cf. divergens was d rastically reduced to very low concentrations, and active predation by F. cf. mexicanum on P. cf, divergens was observed. This reciprocal pr edation may affect our view of energy and cycling of carbon in the pla nktonic community.