| Community 1 Hydrobia ulvae partially covered with seagrass beds | Community 2 Mudflats | Community 3 Mixed sediments 1 | Community 4 Mixed sediments 2 | Community 5 Sandflats | Community 6 Subtidal | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
(n = 39) | (n = 43) | (n = 15) | (n = 13) | (n = 14) | (n = 4) | |||||||
Environment | ||||||||||||
 Median grain size (μm) | 66 (6) | 30 (4) | 59 (9) | 76 (13) | 166 (16) | 153 (18) | ||||||
 Mud content (%) | 49 (4) | 76 (3) | 55 (5) | 46 (7) | 9 (2) | 18 (2) | ||||||
 TOC (%) | 0.7 (0.1) | 0.97 (0.1) | 0.7 (0.1) | 0.5 (0.2) | 0.11 (0.01) | 0.6 (0.3) | ||||||
 Chl a (mg/m²) | 9 (0.4) | 54 (3.2) | 3 (0.2) | 7 (0.9) | 0.6 (0.1) | 0.4 (0.03) | ||||||
 Submergence time (h) | 8.53 | 6.07 | 10.72 | 14.51 | 10.49 | 24 | ||||||
Macrobenthos | ||||||||||||
 S (total/79 cm²) | 37 | 33 | 26 | 14 | 26 | 47 | ||||||
 S (mean/79 cm²) | 10 (0.7) | 16 (0.6) | 11 (0.69) | 6 (0.68) | 10 (0.81) | 23 (8) | ||||||
 Mean abundance (ind./m²) | 145,165 (13614) | 30,492 (3665) | 3,791 (853) | 940 (143) | 4,977 (2375) | 3,991 (2547) | ||||||
 H′ | 0.12 (0.03) | 1.38 (0.06) | 1.5 (0.13) | 1.21 (0.13) | 1.4 (0.16) | 2.3 (0.19) | ||||||
 Eveness J′ | 0.05 (0.01) | 0.5 (0.02) | 0.62 (0.05) | 0.67 (0.05) | 0.62 (0.08) | 0.81 (0.06) | ||||||
Characteristic species (mean abundance ind./m²) | Hyd ulv | 142,809 | Tub ben | 9,241 | Cau kil | 1,165 | Sco arm | 193 | Hyd ulv | 3,968 | Sco arm | 728 |
 | Cer edu | 159 | Hyd ulv | 10,151 | Pyg ele | 326 | Hyd ulv | 238 | Sco arm | 164 | Mic mac | 205 |
 | Ret obt | 186 | Pygo ele | 2,531 | Hyd ulv | 1,458 | Cau kil | 182 | Uro pos | 353 | Lan con | 1,026 |
 | Pygo ele | 318 | Cor spp. | 2,972 | Tub ben | 133 | Ret obt | 68 | Bat sar | 85 | Pyg ele | 199 |
 | Mac bal | 63 | Ner spp. | 1,108 | Sco arm | 108 | Ret spp. | 28 | Nep spp. | 24 | Ari min | 32 |
 | Tub ben | 993 | Ret obt | 828 | Nep hom | 34 | Nep spp. | 21 | Nep hom | 20 | Ret obt | 42 |
 | Nep hom | 14 | Cor vol | 507 | Amp acu | 72 |  |  | Cum goo | 17 | Nym brev | 55 |
 |  |  | Het fil | 240 |  |  |  |  | Bat pilosa | 60 | Ete lon | 190 |
 |  |  |  |  |  |  |  |  | Ete lon | 20 | Phy muc | 221 |
Trophic structure | ||||||||||||
 Surface deposit feeders | 99 |  | 43 |  | 46 |  | 28 |  | 81 |  | 4 |  |
 Subsurface deposit feeders | 1 |  | 40 |  | 9 |  | 34 |  | 5 |  | 30 |  |
 Interface feeders |  |  | 5 |  | 36 |  | 22 |  | 1 |  | 40 |  |
 Sand-lickers |  |  | 0 |  | 0 |  | 0 |  | 11 |  | 0 |  |
 Predatores |  |  | 10 |  | 7 |  | 14 |  | 2 |  | 20 |  |