Table 2 Spatial study: list of the peracarid orders and most abundant species (>1% dominance) with abundances (individuals/0.28 m2) in the different sampling sites, total abundances and dominance (%)
| Â | D24 | D26 | D27 | D31 | D34 | D35 | D37 | D38 | D39 | D40 | Total | D (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMPHIPODA (total) | 437 | 510 | 1,064 | 267 | 858 | 126 | 68 | 1,116 | 671 | 444 | 5,561 | 35.82 |
Stenothoe monoculoides (Montagu, 1815) | 21 | 9 | 6 | 3 | 23 | 3 | 0 | 10 | 4 | 87 | 166 | 1.07 |
Gammarus tigrinus Sexton, 1939 | 0 | 1 | 1 | 0 | 213 | 0 | 1 | 10 | 0 | 1 | 227 | 1.46 |
Gammarella fucicola (Leach, 1814) | 17 | 22 | 516 | 18 | 0 | 1 | 2 | 170 | 69 | 5 | 820 | 5.28 |
Melita palmata (Montagu, 1804) | 0 | 0 | 1 | 0 | 0 | 6 | 6 | 0 | 0 | 157 | 170 | 1.09 |
Perioculodes aequimanus (Kossmann, 1880) | 28 | 5 | 7 | 8 | 1 | 11 | 0 | 55 | 105 | 68 | 288 | 1.85 |
Harpinia pectinata Sars, 1891 | 12 | 55 | 78 | 16 | 0 | 11 | 0 | 33 | 39 | 0 | 244 | 1.57 |
Dexamine spinosa (Montagu, 1813) | 25 | 5 | 28 | 12 | 0 | 0 | 0 | 74 | 34 | 0 | 178 | 1.15 |
Aoridae indet. | 0 | 1 | 0 | 1 | 12 | 0 | 0 | 246 | 16 | 4 | 280 | 1.80 |
Microdeutopus spp. | 13 | 9 | 17 | 30 | 60 | 6 | 3 | 166 | 81 | 27 | 412 | 2.65 |
Microdeutopus versiculatus (Bate, 1856) | 2 | 64 | 1 | 0 | 96 | 0 | 1 | 0 | 1 | 0 | 165 | 1.06 |
Siphonoecetes sabatieri de Rouville, 1894 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 149 | 0 | 156 | 1.00 |
Pariambus typicus (Krøyer, 1804) | 22 | 17 | 178 | 25 | 0 | 0 | 0 | 0 | 1 | 0 | 243 | 1.56 |
ISOPODA (total) | 14 | 76 | 100 | 60 | 55 | 26 | 449 | 199 | 94 | 194 | 1,267 | 8.16 |
Cyathura carinata (Krøyer, 1847) | 0 | 74 | 2 | 0 | 1 | 6 | 3 | 15 | 6 | 68 | 175 | 1.13 |
Uromunna spp. | 12 | 0 | 10 | 57 | 2 | 16 | 0 | 180 | 87 | 4 | 368 | 2.37 |
CUMACEA (total) | 196 | 10 | 96 | 26 | 0 | 26 | 0 | 58 | 70 | 3 | 485 | 3.12 |
Iphinoe trispinosa (Goodsir, 1843) | 173 | 2 | 30 | 8 | 0 | 5 | 0 | 9 | 10 | 3 | 240 | 1.55 |
TANAIDACEA (total) | 1,456 | 1,411 | 2,711 | 1,424 | 0 | 258 | 0 | 662 | 248 | 30 | 8,200 | 52.82 |
Apseudes latreillii (Milne- Edwards, 1828) | 1,394 | 806 | 2,699 | 1,250 | 0 | 37 | 0 | 30 | 24 | 0 | 6,240 | 40.20 |
Apseudes talpa (Montagu, 1808) | 0 | 530 | 0 | 0 | 0 | 15 | 0 | 61 | 117 | 3 | 726 | 4.68 |
Leptochelia savignyi (Kroyer, 1842) | 0 | 0 | 0 | 1 | 0 | 12 | 0 | 400 | 51 | 1 | 465 | 2.99 |
Zeuxo holdichi Bamber, 1990 | 59 | 70 | 6 | 173 | 0 | 194 | 0 | 171 | 23 | 4 | 700 | 4.51 |
Pielou’s evenness (J′) | 0.42 | 0.54 | 0.35 | 0.38 | 0.72 | 0.67 | 0.68 | 0.74 | 0.79 | 0.74 |  |  |
Shannon-Wiener’s diversity index (H′) | 2.39 | 3.07 | 2.05 | 2.04 | 3.72 | 3.62 | 2.94 | 4.07 | 4.48 | 3.74 |  |  |