Anales del Jardín Botánico de Madrid, Vol 73, No 2 (2016)

Macroalgal diversity of Santa Cesarea-Castro (Salento Peninsula, southeastern Italy)

Antonella Bottalico
Dipartimento di Biologia, Università degli Studi di Bari “A. Moro”, Italy

Giuseppina Alongi
Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Catania, Italy

Cesira Perrone
Dipartimento di Biologia, Università degli Studi di Bari “A. Moro”, Italy


The benthic macroalgal flora from the eastern Ionian coastal area of the Peninsula Salentina is scarcely studied. This study gives a contribution to the knowledge on its biodiversity in this area, which also includes marine caves, and the geographical distribution of some interesting species. A total of 174 macroalgae (119 Rhodophyta, 27 Ochrophyta, and 28 Chlorophyta) were identified. Six species are first records for the region, one of which, Liagora ceranoides, represents a new record for the Italian flora. The vegetation of most of the wave-exposed rocky substrata, as well as of the two sulphureous caves at Santa Cesarea Terme is characterised by extensive populations of Corallinales. The chorological spectrum of the flora shows a high occurrence of Indo-Pacific and Circumtropical elements, thus resulting more similar to that of floras of the Greek Ionian Sea.


Apulia; biodiversity; Liagora ceranoides; macroalgae; marine caves; tropicalisation

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