Phyto-pigments in the Digestive Diverticula of Juvenile Japanese Pearl Oyster, Pinctada fucata martensii, as Indicator of Algal Diets Feeding.
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Accession number;01A1002663
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| Title;Phyto-pigments in the Digestive Diverticula of Juvenile Japanese Pearl Oyster, Pinctada fucata martensii, as Indicator of Algal Diets Feeding. |
| Author;
NUMAGUCHI KATSUYUKI
(National Res. Inst. Fisheries Sci.)
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Journal Title;Suisan Zoshoku
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Journal Code:Y0285A
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ISSN:0371-4217
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VOL.49;NO.3;PAGE.317-322(2001)
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| Figure&Table&Reference;FIG.5, REF.19 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Changes in the phyio-pigments (chlorophyll a + phaeo-pigment) in the digestive diverticula of juveniles Japanese pearl oyster, Pinctada fucata martensii, (average whole weight; 3.34g, n=20), and relationship between feeding concentration of micro-algal diet (Isochrysis aff. galbana (Parke) clone T-Iso) and phyto-pigment content in the digestive diverticula of the pearl oyster juveniles, and glycogen content of adductor muscle of the pearl oyster juveniles were determined. Phaeo-pigment contents in the digestive diverticula were much higher than chlorophyll a. Phyto-pigment content in the digestive diverticula increased after feeding the algal diet, and phyto-pigment contents included in the digestive diverticula reached a maximum 24 hours after feeding of the algal diet. There was a positive correlation between the feeding algal diet concentration and the phyto-pigment contents in the digestive diverticula of the pearl oyster juveniles. Glycogen of the adductor muscle also increased with the increasing feeding algal diet concentration. These results indicate that phyto-pigment contents included in the digestive diverticula of pearl oyster juvenile might be a good indicator of feeding of algal diets of pearl oyster juveniles. (author abst.) |
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