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| Manaud, Francois; Maurer, Daniele; Trut, Gilles; Auby, Isabelle. |
| Introduction Massive proliferations of algae and, in particular green macroalgae, have been known all over the continents for several decades. They affect various littoral sites and belong to diverse species (Ulva, Enteromorpha and especially Cladophora). In 1990, on the North Brittany shore, more than 80 000 m3 ulvas have been mechanically removed by affected communities. Up until recently, the Arcachon basin escaped from such phenomenon, even if the diversity and quantity of algae found there had already undergone increasing periods in the past. However, the first algae proliferations only started in the 80's, which scale was large enough to be a nuisance to all activities taking place in the basin. At first (starting in1982), those proliferations were... |
| Tipo: Text |
Palavras-chave: Basin of Arcachon; Green seaweed; Proliferation; Bassin d'Arcachon; Algue verte; Proliferation. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-1653.pdf |
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| Ruiz, Olivier. |
| The increasing amounts of agricultural effluents associated with particular hydrodynamical locations are resulting in strong proliferations of suspended green algae Ulva lactuca. During ebb tide, the algae deposit on beaches, creating a nuisance for both tourism and fishermen. Biomass estimates are hence needed both for understanding the phenomenon and for measuring its magnitude. During the spring tide period of September 1993, two high resolutions digital sensors were run jointly on the French A.R.A.T (Remote Sensing and Atmospheric Research Aircraft). A pushbroom instrument called RAMI (run by C.N.E.S.) with spectral bands identical to those of S.P.O.T. and the Canadian C.A.S.I (which possesses a lot of spectral bands) acquired images over the sandy... |
| Tipo: Text |
Palavras-chave: Télédetection; Green seaweed; Cartography; Télédetection; Algue verte; Cartographie. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-1647.pdf |
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