Proceedings of the Second Mediterranean Symposium on Marine

More documents

Recommendations

Info

Fig. 2. Hystogram showing <strong>the</strong> percentages <strong>of</strong> species <strong>of</strong> <strong>the</strong> Italian flora and <strong>of</strong> floras <strong>of</strong> each FAO sector belonging to each distribution group. The floras <strong>of</strong> <strong>the</strong> three sectors have been compared so as to establish <strong>the</strong> degree <strong>of</strong> both floristic and phytogeographic similarities among <strong>the</strong>m, as expressed by Jaccard's (1932) and Kulczynski's (1927) similarity indices, respectively. A hierarchical clustering was <strong>the</strong>n carried out with an agglomerative centroid method (Sokal & Sneath 1963). The results are expressed in <strong>the</strong> dendrograms <strong>of</strong> Figs. 2-3. The dendrogram <strong>of</strong> Fig. 3 shows a remarkable similarity between <strong>the</strong> floras <strong>of</strong> <strong>the</strong> Tyrrhenian Sea and <strong>the</strong> Ionian Sea being linked to a level <strong>of</strong> importance near to 80%, while that <strong>of</strong> <strong>the</strong> Adriatic Sea is linked to <strong>the</strong> previous group to a level <strong>of</strong> importance <strong>of</strong> about 65%. The same pattern <strong>of</strong> similarity, but with linkages at higher level <strong>of</strong> importance, is shown by <strong>the</strong> dendrogram based on chorological spectra (Fig. 4). In both cases <strong>the</strong> Adriatic flora could represent a discontinuity probably due to <strong>the</strong> lowest total number <strong>of</strong> species and to <strong>the</strong> lowest per cent value <strong>of</strong> <strong>the</strong> <strong>Mediterranean</strong> element, from a floristic and a phytogeographic point <strong>of</strong> view, respectively. The relatively low per cent value <strong>of</strong> <strong>the</strong> <strong>Mediterranean</strong> element in <strong>the</strong> Adriatic flora is probably due to <strong>the</strong> limited extension <strong>of</strong> <strong>the</strong> rocky circalittoral zone where <strong>Mediterranean</strong> element is generally dominant (Boudouresque 1973). ACTES DU DEUXIEME SYMPOSIUM MEDITERRANEEN SUR LA VEGETATION MARINE (ATHENES, 12-13 DECEMBRE 2003) 59
PROCEEDINGS OF THE SECOND MEDITERRANEAN SYMPOSIUM ON MARINE VEGETATION (ATHENS, 12-13 DECEMBER 2003) 60 Fig. 3. Dendrogram depicting mutual floristic similarities <strong>of</strong> floras <strong>of</strong> <strong>the</strong> three FAO sectors. Fig. 4. Dendrogram depicting mutual chorological similarities <strong>of</strong> floras <strong>of</strong> <strong>the</strong> three FAO sectors. In <strong>the</strong> last years, three check-lists <strong>of</strong> <strong>Mediterranean</strong> Fucophyceae, Chlorophyceae and Ceramiales, based on references since 1950, were compiled by Ribera et al. (1992), Gallardo et al. (1993) and Gómez Garreta et al. (2001), respectively. From such papers we drew lists <strong>of</strong> Fucophyceae, Chlorophyceae and Ceramiales <strong>of</strong> five <strong>Mediterranean</strong> areas delimited as follows: (SPA) Spain, (FRA) France, (GTR) Greece and Turkey, (LEL) Libya, Egypt and Levant States (Syria, Lebanon and Israel), (MAT) Morocco, Algeria and Tunisia. Then, <strong>the</strong> above lists were compared with <strong>the</strong> corresponding systematic lists <strong>of</strong> <strong>the</strong> Italian coast (ITA). From this comparison it resulted that <strong>the</strong> number <strong>of</strong> specific and infraspecific taxa accepted for <strong>the</strong> <strong>Mediterranean</strong> Sea is 243 Fucophyceae, 178 Chlorophyceae and 260 Ceramiales (Table 3). Italy and France resulted <strong>the</strong> richest in species areas with 215 (82.7%) and 214 Ceramiales (82.3%), 205 (84.3%) and 157 (64.6%) Fucophyceae, 154 (86.5%) and 122 (68.5%) Chlorophyceae, respectively. Conversely, <strong>the</strong> LEL area resulted <strong>the</strong> poorest in species with only 128 (49.2%) Ceramiales, 74 (30.4%) Fucophyceae and 72 (40.4%) Chlorophyceae (Table 3). Species common to all areas are 90 Ceramiales (34.6%), 54 Fucophyceae (22.2%) and 48 Chlorophyceae (29.9%) while very few resulted <strong>the</strong> sole ones: 12 (4.6%), 30 (12.3%), 21 (11.7%) at Italy; 3 (1.1%),
Page 1 and 2:
United Nations Environment Programm
Page 3 and 4:
PROCEEDINGS OF THE SECOND MEDITERRA
Page 6 and 7:
CONTENTS/SOMMAIRE Programme .......
Page 8 and 9:
ORFANIDIS S., TSIAGGA E. & STAMATIS
Page 10 and 11: Friday 12 December 2003 09:00 Openi
Page 12: Discussion Discussion - Littoral be
Page 15 and 16: PROCEEDINGS OF THE SECOND MEDITERRA
Page 22 and 23: MAPPING MARINE VEGETATION DISTRIBUT
Page 24 and 25: 1984; Boudouresque et al., 1985b; M
Page 26 and 27: Elbu cove, Scandula nature 1/ 1190
Page 28 and 29: features of P. oce
Page 30 and 31: Belsher T., Houlgatte E. (2000) - E
Page 32 and 33: Gloux B. (1984) - Méthodes acousti
Page 34 and 35: Pasqualini, V., Pergent-Martini, C.
Page 36 and 37: Here, we will firstly delineate wha
Page 38 and 39: Fig. 2. The tree of</strong
Page 40 and 41: In the same way, "
Page 42 and 43: While the
Page 44 and 45: COASTAL DEVELOPMENT The destruction
Page 46 and 47: invaders, overfishing and climate c
Page 48 and 49: At the end <strong
Page 50 and 51: to be built up, this disappearance
Page 52 and 53: Boudouresque C.F., Ribera M.A. (199
Page 54 and 55: Marchand M. (1981) - Amoco Cadiz. B
Page 56 and 57: FLORISTIC SIMILARITY AND DISCONTINU
Page 58 and 59: 871 accepted taxa (Table 1). Howeve
Page 62 and 63: 4 (1.6%) and 2 (1.1%) at Spain; 5 (
Page 64 and 65: characteristics of
Page 66 and 67: Fig. 9. Hystogram showing t
Page 68 and 69: Fig. 11. Dendrogram depicting mutua
Page 70 and 71: REFERENCES Agardh C. A. (1822-1823)
Page 72 and 73: De Toni G. B. (1905) - Sylloge Alga
Page 74 and 75: Langenbach G. (1873) - Die Meeresal
Page 76: SESSION «BIOLOGY, ECOLOGY AND INVE
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 120:
SESSION ‘MAPPING MARINE VEGETATIO
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 164 and 165:
CARACTERISATION DE L’ETAT DES HER
Page 166 and 167:
RESULTATS A- PHENOLOGIE Les princip
Page 168 and 169:
Les futures recherches scientifique
Page 170 and 171:
Williamson and Fitter, 1996; Piazzi
Page 172 and 173:
Fig. 2: Spatial patterns of
Page 174 and 175:
vulnerable to invaders. In reality
Page 176 and 177:
BIOMONITORING OF ENVIRONMENTAL METL
Page 178 and 179:
Table 1: Mercury concentration (in
Page 180 and 181:
fraction of <stron
Page 182 and 183:
EFFETS DE L’INCORPORATION DE L’
Page 184 and 185:
Les aliments ont été distribués
Page 186 and 187:
REFERENCES Association of</
Page 188 and 189:
Jonge et al., 2002). Nutrient conce
Page 190 and 191:
to total dissolved inorganic nitrog
Page 192 and 193:
offs (group B; Fig
Page 194 and 195:
PHYTOBENTHOS AS QUALITY ELEMENT FOR
Page 196 and 197:
Padina pavonica and Halopteris scop
Page 198 and 199:
Gelidiella ramellosa II - - - - 5.7
Page 200 and 201:
CARACTERISATION DES HERBIERS A POSI
Page 202 and 203:
une analyse lépidochronologique (P
Page 204 and 205:
La limite de l’herbier à Posidon
Page 206 and 207:
LITTORAL BENTHIC COMMUNITIES AS IND
Page 208 and 209:
Several environmental factors were
Page 210 and 211:
This category includes stations sit
Page 212 and 213:
RAPID ASSESSMENT OF THE ECOLOGICAL
Page 214 and 215:
For a thorough presentation <strong
Page 216 and 217:
The Ecological Evaluation o
Page 218 and 219:
APPLICATION OF ECOLOGICAL INDICES O
Page 220 and 221:
The average taxonomic distinctness
Page 222 and 223:
On Fig. 4 each of
Page 224 and 225:
OVERVIEW OF THE ACTIVITIES AIMED AT
Page 226 and 227:
at the same time f
Page 228:
POSTERS ACTES DU DEUXIEME SYMPOSIUM
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 248 and 249:
Mr Baris AKÇALI D.E.U. Institute <
Page 250 and 251:
Mr Francesco Saverio CIVILI MED POL
Page 252 and 253:
Mr Jamel KSOURI Laboratoire de Biod
Page 254 and 255:
Mr Frédéric PLATINI Accord RAMOGE
Page 256:
Ms Eleni TRYFON Natural Environment
show all

Proceedings of the Second Mediterranean Symposium on Marine

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?