286
S. Gobert et al.
Fig. 18.1 Presentation of the eight sectors prospected in the Bay of Calvi (Corsica) for testing
and validating the LIMA index: Punta Revellata (Sector 1), STARESO (Sector 2), Bibliothèque
(Sector 3), Punta St François (Sector 4), Calvi beach (Sector 5), Punta Caldanu (Sector 6), Algajo
of (Sector 7) and Punta Spano (Sector 8) (24 radials: 3 per sector)
heritage species and as rich sites (green) respectively. A sector is classed as having
a high level of richness of heritage species and as a rich site (green class); 4 sites are
classed as having an average level of richness of heritage species and as attractive
sites (yellow class) and 3 sectors are classed as having low levels of richness of
heritage species and as unattractive sites (orange class).
The topographical quality (Table 18.8) varies between 0.25 (Calvi beach sector,
radial 1) and 0.92 (Punta Revellata sector, radial 1). The Calvi beach sector is a
large covered sandy stretch covered by magniolophyta in certain places. On the
other hand, the Punta Revellata sector is an uneven and rocky zone (presence of
cavities, overhangs, slopes. . . ). This sector of the bay is particularly frequented by
sport divers. The detailed results of the Biological Description of radial 1 of the
Punta Revellata sector are presented in Table 18.9. Species belonging to remarkable
genuses like Cystoseira, Epinephelus and Palinurus are frequent there. The colonies
of Eunicella and Parazoanthus colonise the slopes and overhangs and make this
sector rich and attractive.
The biological quality varies between 0.21 (S), 0.09 (R), 0.50 (I) for the Calvi
beach and STARESO sectors 0.67 (S), 0.81 (R), 1.00 (I) for the sectors of Punta
Revellata, Bay of Algago and Punta Spano.