Papers by Giuseppe Tripaldi
Marine Pollution Bulletin, 1992
Oceanologica Acta, 1999
Fourteen years after the first observation of Cuulerpa tuxifolia (Valh) C. Agardh in the northwes... more Fourteen years after the first observation of Cuulerpa tuxifolia (Valh) C. Agardh in the northwestern Mediterranean Sea, this green alga of tropical origin is now present in five countries (Spain, France, Monaco, Italy and Croatia). By the end of 1997, more than 46 km2, at depths of between 0 and 50 m, were found to be affected by this expansion. A standardization of the cartographic procedure is proposed here. Such a standardization is necessary to compare maps produced by various organizations from different countries. For a given independent station, it is based on the definition of three levels of colonization: -Level I refers to a station where one or several colonies less than 100 m apart cover a total surface area inferior to 1000 m2; -Level II refers to a station where several colonies less than 250 m apart totally cover more than 1000 m2 with fragments and small colonies dispersed over a surface area inferior to 10 ha; -Level III is attained when several large colonies are dispersed over a surface area superior to 10 ha, with a total covered surface of more than 1000 m2, impossible to map with precision due to its size.
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Papers by Giuseppe Tripaldi