Feeding by common heterotrophic protists on the mixotrophic alga Gymnodinium smaydae (Dinophyceae), one of the fastest growing dinoflagellates

© 2018 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 54(2018), 5 vom: 15. Okt., Seite 734-743
1. Verfasser: Jeong, Hae Jin (VerfasserIn)
Weitere Verfasser: You, Ji Hyun, Lee, Kyung Ha, Kim, So Jin, Lee, Sung Yeon
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't feeding growth harmful algal bloom ingestion red tide
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520 |a Gymnodinium smaydae is one of the fastest growing dinoflagellates. However, its population dynamics are affected by both growth and mortality due to predation. Thus, feeding by common heterotrophic dinoflagellates Gyrodinium dominans, Gyrodinium moestrupii, Oblea rotunda, Oxyrrhis marina, and Polykrikos kofoidii, and the naked ciliate Pelagostrobilidium sp. on G. smaydae was investigated in the laboratory. Furthermore, growth and ingestion rates of O. marina, G. dominans, and Pelagostrobilidium sp. on G. smaydae in response to prey concentration were also determined. Oxyrrhis marina, G. dominans, G. moestrupii, and Pelagostrobilidium sp. were able to feed on G. smaydae, but P. kofoidii and O. rotunda did not feed on this dinoflagellate. The maximum growth rate of O. marina on G. smaydae was 0.411 per day. However, G. smaydae did not support the positive growth of Pelagostrobilidium sp. The maximum ingestion rates of O. marina and Pelagostrobilidium sp. on G. smaydae were 0.27 and 6.91 ng C · predator-1  · d-1 , respectively. At the given mean prey concentrations, the highest growth and ingestion rates of G. dominans on G. smaydae were 0.114 per day and 0.04 ng C · predator-1  · d-1 , respectively. The maximum growth and ingestion rates of O. marina on G. smaydae are lower than those on most of the other algal prey species. Therefore, O. marina may be an effective predator of G. smaydae, but G. smaydae may not be the preferred prey for supporting high growth of the predator in comparison to other species as inferred from a literature survey 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a feeding 
650 4 |a growth 
650 4 |a harmful algal bloom 
650 4 |a ingestion 
650 4 |a red tide 
700 1 |a You, Ji Hyun  |e verfasserin  |4 aut 
700 1 |a Lee, Kyung Ha  |e verfasserin  |4 aut 
700 1 |a Kim, So Jin  |e verfasserin  |4 aut 
700 1 |a Lee, Sung Yeon  |e verfasserin  |4 aut 
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773 1 8 |g volume:54  |g year:2018  |g number:5  |g day:15  |g month:10  |g pages:734-743 
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