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| Flassch, Jean-pierre. |
| L'élevage d'algues marines et de postlarves dépend de la chaîne alimentaire qui inclue toutes les tailles nécessaires d'algue et de proies. Une telle unité fonctionne depuis 1973 au COB à Brest et est à la base de toute recherche expérimentale sur les mollusques, les crustacés et les poissons marins. Dans cet article, la technique de production d'algues unicellulaires en culture semi-continue (20l) aussi bien qu'en unité de production de 60 l est décrite. Une nouvelle technique simplifiée d'introduction des sels minéraux et des vitamines a été étudiée dans un système semi-continu. L'unité de production de masse testée pendant ces trois années a donné toute satisfaction et est décrite ici en détail. |
| Tipo: Text |
Palavras-chave: Algues marines; Elevage; Technique de production. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/00019/13021/9998.pdf |
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| Merceron, Michel. |
| On tens of sandy beaches of Brittany, a green seaweed (Ulva) blooms during spring and summer. In the sites where the proliferation is the most important, the total biomass amounted to 20 000 t of wet weight in 1997, at the time of maximum. These "green tides" occur every year in nearly the same locations. They have a very harmful impact on local tourism. In many communes, beached and rotting algae are collected and dumped (43 000 m 3 as a whole in 1997). The main development of biomass takes place between the surf zone and the bare sand.The outbreak requires three coexisting conditions : 1) a sandy beach gently sloping, 2) a weak residual current (i.e. once the tidal back and forth movement has been filtered), 3) a nitrogen loading, even moderate (ammonium... |
| Tipo: Text |
Palavras-chave: Brittany; Eutrophication; Proliferation; Ulva; Marine algae; Bretagne; Eutrophisation; Prolifération; Ulves; Algues marines. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/acte-46.pdf |
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| Rindi, F; Maltagliati, F; Rossi, F; Acunto, S; Cinelli, F. |
| Halophila stipulacea, a seagrass introduced into the Mediterranean Sea as a Lessepsian immigrant, is nowadays common in the eastern Mediterranean, and it was recently recorded in the western Mediterranean; very little information is available about the algal flora associated with this species. During a survey of a Halophila stipulacea stand at Vulcano Island (Eolian Islands, western Mediterranean), samples were collected at three depths (5 m, 15 m and 25 m) for identification of algal epiphytes. Thirty-six species of macroalgae were found. The epiflora of the leaves consisted of 20 species, the others being mixed with or entangled in the rhizomes. On the leaves, Ceramium tenerrimum, Dasya corymbifera, Polysiphonia cfr. tenerrima, Spyridia filamentosa,... |
| Tipo: Text |
Palavras-chave: Halophila stipulacea; Épiphytes algaux; Épiphytisme; Algues marines; Méditerranée occidentale; Halophila stipulacea; Seagrass epiphytes; Epiphytism; Marine algae; Western Mediterranean. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43605/43924.pdf |
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