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| Robert, Rene; His, Edouard. |
| The different growth stages of three marine unicellular algae used in aquaculture, Isochrysis galbana, Chaetoceros calcitrans forma pumilum and tetraselmis suecica have been studied for 50 days under controlled culture conditions using a particle meter. At the same time, the size spectrum of the cells has been determined using a C 1000 scanner. The exponential growth stage is 11 days in the first two species, and 13 in the last one. Chaetoceros calcitrans forma pumilum is the smallest with an average size of 3.5 µm. Its cellular volume is constant. The average size of Isochrysis galbana is 4.5 µm. An increase of the cellular volume is observed through its stationary stage. The modal size of Tetraselmis suecica is 8 µm. Again, an increase in the cellular... |
| Tipo: Text |
Palavras-chave: Spectre de taille; Croissance; Tetraselmis suecica; Chaetoceros calcitrans forma pumilum; Isochrysis galbana; Algues unicellulaires. |
| Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/1986/acte-6187.PDF |
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| Robert, Rene; Parisi, Guilina; Pastorelli, Roberta; Poli, Bianca Maria; Tredici, Mario. |
| In an attempt to provide cost-effective alternatives to live microalgae and to simplify hatchery-nursery procedures, concentrated microalgae appear to be very promising. Due to its high preservation ability, Prasinophytes appear to be good candidates for such alternative diets. Nevertheless, in a previous study the utilization of Tetraselmis suecica was only conceivable for old Crassostrea gigas larvae. In the present work its nutritional quality has been accordingly searched on ]apanese oyster's juveniles. Whatever the assemblages and condition, fresh or preserved microalgae, T. suecica did not allow an adequate postlarval development in C. gigas. |
| Tipo: Text |
Palavras-chave: Nutritional quality; Crassostrea gigas; Tetraselmis suecica; Microalgae; Valeur alimentaire; Crassostrea gigas; Tetraselmis suecica; Microalgues. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-6202.PDF |
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