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| Yoong, F.; Reinoso, B.. |
| The present study was carried out in samples of Ostrea columbiensis (Hanley) taken from the estero ”Las Alforjas”, during de period between march-december of 1989. Three stations were selected in the estero, in order to observe the fixation, growth and survival of the larvae in special collectors designed by the authors. The percentage of fixation in the station 1 was 25,8%, in the station 2, 37,8% and in the station 3, 36,4%. The larvae oyster got fixed, preferably, by the external face of the collector (big valve) in a percentage of 64,3, while on the external face this percentage was 35,7%. The average height of the oysters during the whole period of study was 52 mm, with a monthly increment of 5,2 mm. The percentage of the oysters survival was 84,4%.... |
| Tipo: Journal Contribution |
Palavras-chave: Ostrea columbiensis; Mollusc culture; Growth; Larval development; Survival; Mollusc culture; Growth; Survival; Http://aims.fao.org/aos/agrovoc/c_4896; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_7538. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/3053 |
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| Zaixso, H.E.; Lizarralde, Z.I.. |
| The effect of thinning on the harvestable biomass of mussel Mytilus platensis (d'Orb.) cultures was analyzed. Mussels were grown on ropes in sub-surface long-lines in Golfo Nuevo (Chubut, Argentina, 64° 59' W; 42°46' S) during a 15 month period (January 1987-April 1988). Ropes were seeded using the Spanish method with 2,000 individuals per rope meter. The thinning-out was performed three months later using the following thinning ratios (TR: number of half-grown ropes obtained from one seed rope):1,6 (900 individuals m super(-1)), 2,4 (600 individuals m super(-1)) and 3,2 (450 individuals m super(-1)). Growth rate (shell length and meat weight), survival and number of harvestable ropes increase with the thinning rate; the harvestable biomass being larger at... |
| Tipo: Journal Contribution |
Palavras-chave: Mussel culture; Growth; Survival; Growth; Survival; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_7538. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/1865 |
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