Growth interactions between raphidophytes chattonella antiqua and Heterosigma akashiwo

Xuchun Qiu; Yasuhiro Yamasaki; Yohei Shimasaki; Hiroaki Gunjikake; Tomoyuki Shikata; Tadashi Matsubara; Sou Nagasoe; Takuya Etoh; Shigeaki Matsui; Tsuneo Honjo; Yuji Oshima

Growth interactions between raphidophytes chattonella antiqua and Heterosigma akashiwo

Xuchun Qiu, Yasuhiro Yamasaki, Yohei Shimasaki, Hiroaki Gunjikake, Tomoyuki Shikata, Tadashi Matsubara, Sou Nagasoe, Takuya Etoh, Shigeaki Matsui, Tsuneo Honjo, Yuji Oshima

Animal and Marine Bioresource Sciences

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We investigated growth interactions between the raphidophytes Chattonella antiqua (Hada) Ono and Heterosigma akashiwo (Hada) Hada ex Hara et Chihara using bi-algal cultures under axenic conditions. The growth of C. antiqua and H. akashiwo each tended to be strongly suppressed when the other species reached early stationary phase. A mathematical model was used to simulate the growth interactions of C. antiqua and H. akashiwo in bi-algal cultures. The model showed that C. antiqua outcompetes H. akashiwo over time in bi-algal cultures under all experimental conditions. Furthermore, despite re-enrichment with nutrients, the filtrate from dense cultures of C. antiqua reduced the maximum growth rate of H. akashiwo and filtrate from dense cultures of H. akashiwo reduced both the maximum growth rate and maximum yield of C. antiqua.

Original language	English
Pages (from-to)	33-45
Number of pages	13
Journal	Thalassas
Volume	27
Issue number	1
Publication status	Published - Feb 21 2011

All Science Journal Classification (ASJC) codes

Oceanography
Aquatic Science

Cite this

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title = "Growth interactions between raphidophytes chattonella antiqua and Heterosigma akashiwo",

abstract = "We investigated growth interactions between the raphidophytes Chattonella antiqua (Hada) Ono and Heterosigma akashiwo (Hada) Hada ex Hara et Chihara using bi-algal cultures under axenic conditions. The growth of C. antiqua and H. akashiwo each tended to be strongly suppressed when the other species reached early stationary phase. A mathematical model was used to simulate the growth interactions of C. antiqua and H. akashiwo in bi-algal cultures. The model showed that C. antiqua outcompetes H. akashiwo over time in bi-algal cultures under all experimental conditions. Furthermore, despite re-enrichment with nutrients, the filtrate from dense cultures of C. antiqua reduced the maximum growth rate of H. akashiwo and filtrate from dense cultures of H. akashiwo reduced both the maximum growth rate and maximum yield of C. antiqua.",

author = "Xuchun Qiu and Yasuhiro Yamasaki and Yohei Shimasaki and Hiroaki Gunjikake and Tomoyuki Shikata and Tadashi Matsubara and Sou Nagasoe and Takuya Etoh and Shigeaki Matsui and Tsuneo Honjo and Yuji Oshima",

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AU - Qiu, Xuchun

AU - Yamasaki, Yasuhiro

AU - Shimasaki, Yohei

AU - Gunjikake, Hiroaki

AU - Shikata, Tomoyuki

AU - Matsubara, Tadashi

AU - Nagasoe, Sou

AU - Etoh, Takuya

AU - Matsui, Shigeaki

AU - Honjo, Tsuneo

AU - Oshima, Yuji

PY - 2011/2/21

Y1 - 2011/2/21

N2 - We investigated growth interactions between the raphidophytes Chattonella antiqua (Hada) Ono and Heterosigma akashiwo (Hada) Hada ex Hara et Chihara using bi-algal cultures under axenic conditions. The growth of C. antiqua and H. akashiwo each tended to be strongly suppressed when the other species reached early stationary phase. A mathematical model was used to simulate the growth interactions of C. antiqua and H. akashiwo in bi-algal cultures. The model showed that C. antiqua outcompetes H. akashiwo over time in bi-algal cultures under all experimental conditions. Furthermore, despite re-enrichment with nutrients, the filtrate from dense cultures of C. antiqua reduced the maximum growth rate of H. akashiwo and filtrate from dense cultures of H. akashiwo reduced both the maximum growth rate and maximum yield of C. antiqua.

AB - We investigated growth interactions between the raphidophytes Chattonella antiqua (Hada) Ono and Heterosigma akashiwo (Hada) Hada ex Hara et Chihara using bi-algal cultures under axenic conditions. The growth of C. antiqua and H. akashiwo each tended to be strongly suppressed when the other species reached early stationary phase. A mathematical model was used to simulate the growth interactions of C. antiqua and H. akashiwo in bi-algal cultures. The model showed that C. antiqua outcompetes H. akashiwo over time in bi-algal cultures under all experimental conditions. Furthermore, despite re-enrichment with nutrients, the filtrate from dense cultures of C. antiqua reduced the maximum growth rate of H. akashiwo and filtrate from dense cultures of H. akashiwo reduced both the maximum growth rate and maximum yield of C. antiqua.

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Growth interactions between raphidophytes chattonella antiqua and Heterosigma akashiwo

Abstract

All Science Journal Classification (ASJC) codes

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