Table 2 Temporal variation of the average (±SE) abundance (ind. m−2) of quantifiable macrobenthic taxa obtained from the mudflat stations (St. A–D) and S. anglica marsh stations (St. E–G)
From: Associations between macrobenthos and invasive cordgrass, Spartina anglica, in the Danish Wadden Sea
| Â | Mudflat | S. anglica marsh | ||||||
|---|---|---|---|---|---|---|---|---|
May | Sept | Jan | Mar | May | Sept | Jan | Mar | |
Infauna | ||||||||
Polychaeta | ||||||||
 Arenicola marina | 23.1 ± 14.4 | 338.0 ± 59.4 | 398.1 ± 42.6 | 78.7 ± 21.0 | 0 | 18.5 ± 13.1 | 12.3 ± 12.3 | 0 |
 Eteone longa | 27.8 ± 12.8 | 240.7 ± 48.5 | 32.4 ± 18.7 | 18.5 ± 7.9 | 43.2 ± 15.4 | 98.8 ± 34.4 | 24.7 ± 18.8 | 24.7 ± 13.5 |
 Heteromastus filiformis | 0 | 9.4 ± 9.4 | 9.3 ± 6.2 | 18.5 ± 10.4 | 0 | 0 | 0 | 0 |
 Nereis diversicolor | 88.0 ± 27.7 | 148.1 ± 31.6 | 83.3 ± 19.9 | 115.7 ± 21.0 | 6.2 ± 6.2 | 228.4 ± 31.3 | 216.0 ± 38.7 | 80.2 ± 36.0 |
 Pygospio elegans | 1,041.7 ± 158.2 | 1,625 ± 361.9 | 537 ± 76.9 | 513.9 ± 65.3 | 679.0 ± 269.6 | 888.9 ± 311.1 | 327.2 ± 73.2 | 722.2 ± 293.4 |
 Scoloplos armiger | 27.8 ± 12.8 | 55.6 ± 46.4 | 50.9 ± 36.5 | 32.4 ± 32.4 | 0 | 0 | 0 | 0 |
Oligochaeta | ||||||||
 Tubificoides benedeni | 745.4 ± 242.9 | 1,824.1 ± 361.7 | 981.5 ± 203.6 | 1,222.2 ± 385.4 | 6.2 ± 6.2 | 61.7 ± 28.5 | 0 | 55.6 ± 43.4 |
Crustacea | ||||||||
 Corophium volutator | 236.1 ± 102.4 | 263.9 ± 162.1 | 416.7 ± 242.3 | 444.4 ± 214.3 | 49.4 ± 36.4 | 18.5 ± 13.1 | 18.5 ± 18.5 | 129.6 ± 64.2 |
Bivalvia | Â | Â | Â | Â | Â | Â | Â | Â |
 Cerastoderma edule | 4.6 ± 4.6 | 23.1 ± 10.7 | 0 | 4.6 ± 4.6 | 0 | 0 | 6.2 ± 6.2 | 6.2 ± 6.2 |
 Macoma balthica | 259.3 ± 52.2 | 361.1 ± 40.2 | 171.3 ± 40.7 | 236.1 ± 61.2 | 191.4 ± 52.5 | 86.4 ± 33.5 | 24.7 ± 13.5 | 148.1 ± 44.4 |
 Mya arenaria | 4.6 ± 6.2 | 9.3 ± 6.2 | 4.6 ± 4.6 | 0 | 6.2 ± 6.2 | 0 | 6.2 ± 6.2 | 0 |
Total infauna | 2,468 ± 2,408 | 4,903 ± 474 | 2,685 ± 211 | 2,685 ± 381 | 982 ± 328 | 1,401 ± 362 | 636 ± 76 | 1,167 ± 362 |
Epifauna | Â | Â | Â | Â | Â | Â | Â | Â |
Gastropoda | Â | Â | Â | Â | Â | Â | Â | Â |
 Hydrobia ulvae | 21,958 ± 2,485 | 61,560 ± 5,321 | 7,764 ± 1,132 | 6,139 ± 869 | 27,673 ± 4,737 | 45,216 ± 9,516 | 42,938 ± 4,534 | 66,537 ± 6,210 |
 Littorina littorea | 0 | 23.1 ± 10.7 | 4.6 ± 4.6 | 32.4 ± 10.7 | 0 | 98.8 ± 29.0 | 333.3 ± 73.5 | 74.1 ± 34.6 |
Total epifauna | 21,958 ± 2,485 | 61,583 ± 5,321 | 7,768 ± 1,132 | 6,171 ± 869 | 27,673 ± 4,737 | 45,315 ± 9,516 | 43,271 ± 4,535 | 66,611 ± 6,210 |
Total fauna | 24,440 ± 2,441 | 66,514 ± 5,514 | 10,454 ± 1,162 | 8,870 ± 913 | 28,654 ± 5,027 | 46,728 ± 9,840 | 43,938 ± 4,491 | 67,784 ± 6,491 |
Infauna species richness | 10 | 11 | 10 | 10 | 7 | 7 | 8 | 7 |
Epifauna species richness | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 2 |
Fauna species richness | 11 | 13 | 12 | 12 | 8 | 9 | 10 | 9 |