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アントクメの生活史と養殖試験


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Title: アントクメの生活史と養殖試験
Other Titles: Life History and Culture Experiment of Eckloniopsis radicosa, Phaeophyceae Laminariales
Authors: 右田, 清治
Authors (alternative): Migita, Seiji
Issue Date: Nov-1985
Publisher: 長崎大学水産学部
Citation: 長崎大学水産学部研究報告, v.58, pp.105-111; 1985
Abstract: Eckloniopsis radicosa (KJELLM.) OKAMURA, a species of Laminariles, is distributed along middle and southern Pacific coasts of Japan and it is affined to species of Eisenia and Ecklonia. The life history of this alga was studied by laboratory and field cultures. The intergeneric hybridization between this alga and other species of Eisenia and Ecklonia were also experimented. E. radicosa collected at Ushibuka, south-western Kyushu, liberated many zoospores from the middle of July to early of September. Settled zoospores issued a germ-tube and developed into branched filamentous male and female gametophytes. Morphological forms and developmental patterns of gametophytes and young sporophytes were almost similar to those of other species of Laminariaceae described by previous investigators. When the sporophytes attained about 2-4cm long or more, white stripes appeared on the lamina, and they were consisted of numerous mucilage glands. This plant also had mucilage canals which showed networked patterns. After 3 months culture in the sea, they grew up to ovate lamina with undulate margins. From the cytological observation, chromosome number of this alga was ca. 60 in the diploid phase, and ca. 30 in the haploid phase. Hybridization experiments proved a complete interfertility between E. radicosa and Ecklonia cava, and between E. radicosa and Ecklonia kurome.
URI: http://hdl.handle.net/10069/30371
ISSN: 05471427
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:第58号

Citable URI : http://hdl.handle.net/10069/30371

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