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  • 1
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    Etude de la variabilité des spores de Gracilaria verrucosa (Hudson) Papenfuss. (2016)
    Details
    Publication Date: 2021-05-19
    Description: L'etude de la viabilite des spores de l'algue rouge Gracilaria verrucosa a montre que le taux de survie diminue de 100% a 8% pour les tetraspores et a 4% pour les carpospores apres trois semaines de culture.
    Description: Study of Gracilaria verrucosa spores growth showed that survival rate decreases from 100% to 8% for tetraspores and to 4% for carpospores after three weeks of culture
    Description: Published
    Keywords: Algue rouge ; Growth ; Variability ; Survival ; Seaweed culture ; Spores ; Gracilaria verrucosa ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 54-58
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  • 2
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    La rhodophycée Gracilaria verrucosa (Hudson) Papenfuss, du lac de Bizerte (Tunisie): variations mensuelles de la biomasse, du rendement et de la qualité de l'agar. (2016)
    Details
    Publication Date: 2021-05-19
    Description: During the year of 1999, the red seaweed Gracilaria verrucosa (Hudson) Papenfuss (Rhodophyta, Gracilariales, Gracilariaceae), has been followed monthly in Bizerte lake (in the north of Tunisia). The parameters studied are: biomass, agar-yield, gel strength, gelling and melting temperatures. The results showed that the highest average of wet biomass is recorded in June (2500 g/m super(2)) and the lowest is obtained in October (130 g/m super(2)). The highest agar-yield is obtained in April (37,92 %) ; while the lowest is recorded in September (10,67 %). High and low gel strengths are obtained in May (410g /cm super(2)) and in December (125 g :cm super(2)), respectively. Gelling temperature varies between 31 degree C and 44~ 'C, while melting temperature varies between 79 degree C and 100 degree C
    Description: Published
    Keywords: Qualité ; Agar ; Yield ; Quality ; Seaweed products ; Biomass ; Gracilaria verrucosa ; Brackish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 127-136
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  • 3
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    Effets de la température et de la lumière sur la croissance des tétraspores de la rhodophycée Gracilaria verrucosa (Hudson) Papenfuss. (2016)
    Details
    Publication Date: 2021-05-19
    Description: L'etude de l'influence de la temperature et de la lumiere sur la croissance des tetraspores Gracilaria verrucosa a montre que l'intensite lumineuse optimale est comprise entre 85 et 110 Kappa E/m super(2)/s a 20 degree C et entre 80 et 100 Kappa E/ m super(2)/s a 25 degree C
    Description: Study of temperature and light influence on Gacilaria verrucosa tetraspores growth showed that optimal light intensity is situated between 85 and 110 Kappa E/m super(2)/s at 2 degree C and between 80 and 100 Kappa E/m super(2)/s at 25 degree C.
    Description: Published
    Keywords: Croissance ; Tétraspores ; Rhodophycée ; Temperature effects ; Growth ; Light intensity ; Seaweeds ; Gracilaria verrucosa ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 62-79
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  • 4
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    Résultats des cultures expérimentales de la rhodophycée Gracilaria verrucosa (Hudson) Papenfuss dans le lac de Bizerte, Tunisie septentrionale. (2016)
    Details
    Publication Date: 2021-05-19
    Description: This study was conducted in Bizerte lake (Tunisia) between April and July of 1998. It concerns Gracilaria verrucosa culture with 3 techniques in order to determine the best one. After 58 days, the sand pudding method gave the best result with reference of average weight (1205 g), % of recuperation of the tuft (90 %), final density (2,7 kg/m super(2)) and specific growth rate (3,100).
    Description: Published
    Keywords: Mode de culture ; Accroisseirent du poids ; Densité de culture ; Sujet growth rate ; Density ; Experimental culture ; Seaweed culture ; Culture media ; Aquaculture techniques ; Gracilaria verrucosa ; Brackish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 113-125
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