PRELIMINARY EVIDENCE OF GROWTH INFLUENCE ON CARBON STABLE ISOTOPE COMPOSITION OF Undaria Pinnatifida | Zendy

Matheus C. Carvalho | Zendy; Kenichi Hayashizaki | Zendy; Hisao Ogawa | Zendy; Ryusuke Kado | Zendy

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PRELIMINARY EVIDENCE OF GROWTH INFLUENCE ON CARBON STABLE ISOTOPE COMPOSITION OF Undaria Pinnatifida

Author(s) -

Matheus C. Carvalho,

Kenichi Hayashizaki,

Hisao Ogawa,

Ryusuke Kado

Publication year - 1970

Publication title -

marine research in indonesia

Language(s) - English

Resource type - Journals

ISSN - 2443-2008

DOI - 10.14203/mri.v32i2.453

Subject(s) - thallus , bay , δ13c , biology , botany , shading , stable isotope ratio , geography , archaeology , art , physics , quantum mechanics , visual arts

Cultured sporophytic thalli of Undaria pinnatifida were collected at different periods of the year from Okkirai Bay, northeastern Japan. 13C of the thalli collected in January was much higher than that of the thalli collected in March, and young thalli collected in March showed a tendency towards lower 13C values comparing with adult ones. U. pinnatifida thalli grew fast in January, while young thalli in March showed slow growth due to the light limitation caused by shading adult thalli. Therefore, the growth rate of thallus may relate to 13C. Ongoing studies aim to quantitatively describe this relation and to search similar results for other species.

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