Settlement of germlings in some Japanese Sargassaceae

Professor Takeo Okuda (1929-2005) studied egg release and settlement of germling in Japanese Sargassaceae. Some Sargassum species were found to release eggs at non-periodic intervals, and this finding was different from that in previous studies. Germlings remained on the surface of receptacles for p...

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Bibliographic Details
Published inSessile Organisms Vol. 24; no. 2; pp. 89 - 94
Main Author Honda, Masaki
Format Journal Article
LanguageEnglish
Published THE SESSILE ORGANISMS SOCIETY OF JAPAN 2007
Subjects
attachment
germling
Sargassaceae
settlement
settling velocity
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ISSN1342-4181
1883-4701
DOI10.4282/sosj.24.89

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Summary:Professor Takeo Okuda (1929-2005) studied egg release and settlement of germling in Japanese Sargassaceae. Some Sargassum species were found to release eggs at non-periodic intervals, and this finding was different from that in previous studies. Germlings remained on the surface of receptacles for periods of one to eleven days. The period where germlings remained on the surface of receptacles varied with species. Settling velocities ranged from 0.12 to 0.56cm/s, with bigger germlings settling at higher velocities. Germlings of intertidal species attached to the substrate immediately, while those of subtidal species required undisturbed condition for settlement.
ISSN:1342-4181
1883-4701
DOI:10.4282/sosj.24.89