Table 2 Total abundance (A, individuals m−2) and biomass (B, g AFDM m−2) between summer (S) 1996 and winter (W) 2002 at 5, 10 and 20 m water depth, H herbivorous, C carnivorous, S sedimentivoros, D detritivorous, O omnivorous, Su suspensivorous
Taxon | S | W | S | W | S | W | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
5Â m | 5Â m | 10Â m | 10Â m | 20Â m | 20Â m | |||||||
A | B | A | B | A | B | A | B | A | B | A | B | |
Cnidaria | ||||||||||||
Anthothoe chilensis (Su) | – | – | 50 | 10.080 | 160 | 32.256 | 35 | 7.056 | 115 | 23.184 | 10 | 2.016 |
Aschelminthes | ||||||||||||
Nematoda indet. (D) | 15 | ND | 5 | ND | – | – | 40 | ND | 100 | ND | 80 | ND |
Polyplacophora | ||||||||||||
Chiton sp. (H) | 5 | 0.420 | – | – | 90 | 7.560 | 35 | 2.940 | 80 | 6.720 | 170 | 14.280 |
Gastropoda | ||||||||||||
Aeneator fontainei (C) | – | – | – | – | – | – | – | – | – | – | 20 | ND |
Aesopus aliceae (S)a | – | – | – | – | – | – | – | – | – | – | 5 | ND |
Agathotoma ordinaria (C) a | – | – | – | – | 15 | ND | – | – | – | – | – | – |
Calliostoma fonkii (C) | – | – | – | – | – | – | – | – | 5 | ND | – | – |
Calyptraea trochiformis (S) | 15 | 7.223 | – | – | 135 | 65.003 | 40 | 19.260 | 20 | 9.630 | 525 | 252.788 |
Cancellaria buccinoides (C) | 5 | 5.140 | – | – | 10 | 10.279 | – | – | 110 | 113.069 | 35 | 35.977 |
Crassilabrum crassilabrum (S) | – | – | – | – | 15 | 34.262 | 5 | 11.421 | – | – | – | – |
Crepidula dilatata (S) | 10 | 24.711 | – | – | 145 | 358.310 | 95 | 234.755 | – | – | 20 | 49.422 |
Crucibulum quiriquinae (S) | 5 | 12.058 | – | – | 315 | 759.654 | 105 | 253.218 | 695 | 1,676.062 | 580 | 1,398.728 |
Fissurella peruviana (H) | 15 | 17.445 | – | – | 220 | 255.860 | 30 | 34.890 | 5 | 5.815 | 25 | 29.075 |
Mitra orientalis (C) | 255 | 13.260 | – | – | 1,090 | 56.680 | 985 | 51.220 | 625 | 32.500 | 720 | 37.440 |
Mitrella unifasciata (C) | 150 | 15.000 | – | – | 3,040 | 304.000 | 2,040 | 204.000 | 930 | 93.000 | 935 | 93.500 |
Nassarius gayi (C) | 100 | 11.930 | 5 | 0.597 | 825 | 98.423 | 405 | 48.317 | 1,460 | 174.178 | 1,520 | 181.336 |
Nucella sp. (C) a | – | – | – | – | – | – | – | – | 25 | ND | 15 | ND |
Oliva peruviana (C) | 30 | 89.559 | 45 | 134.339 | – | – | – | – | – | – | – | – |
Polinices uber (C) | 10 | 6.483 | 30 | 19.449 | – | – | 5 | 3.242 | – | – | 5 | 3.242 |
Priene rude (C) | 10 | 38.753 | – | – | 230 | 891.319 | 45 | 174.389 | 230 | 891.319 | 80 | 310.024 |
Salitra radwini (C) a | – | – | – | – | 15 | 0.248 | 25 | 0.413 | 80 | 1.320 | 90 | 1.485 |
Tegula luctuosa (C) | 35 | 46.424 | – | – | 55 | 72.952 | 30 | 39.792 | – | – | 5 | 6.632 |
Trigonostoma tuberculosum (C) | – | – | – | – | 20 | 201.314 | 10 | 100.657 | – | – | – | – |
Xanthochorus cassidiformis (C) | 15 | 106.338 | 5 | 35.446 | 15 | 106.338 | 5 | 35.446 | 70 | 496.244 | 10 | 70.892 |
Bivalvia | ||||||||||||
Argopecten purpuratus (Su) | – | – | – | – | 90 | 469.188 | 45 | 234.594 | 10 | 52.132 | 30 | 156.396 |
Aulacomya ater (Su) | – | – | – | – | 7,005 | 6,702.200 | 2,460 | 6,883.600 | 615 | 3,942.000 | 1,025 | 6,570.200 |
Gari solida (Su) | – | – | – | – | 20 | 0.616 | 20 | 0.616 | 10 | 0.308 | 5 | 0.154 |
Nucula sp. (Su) | 70 | 0.973 | – | – | 2,770 | 38.503 | 525 | 7.298 | 5 | 0.070 | 75 | 1.043 |
Solemya (Petrasma) atacama (Su) a | – | – | – | – | – | – | – | – | 110 | 9.966 | 55 | 4.983 |
Tagelus dombeii (Su) | 80 | ND | 200 | ND | – | – | 5 | ND | 30 | ND | 5 | ND |
Polychaeta | ||||||||||||
Archiannelida indet. (D) a | – | – | 45 | ND | – | – | – | – | – | – | 10 | ND |
Capitellidae indet. (C) | – | – | 5 | 0.007 | 140 | 0.182 | 595 | 0.774 | 90 | 0.117 | 315 | 0.410 |
Chaetopteridae indet. (S) | – | – | – | – | – | – | – | – | – | – | 10 | 7.048 |
Cirratulidae indet. (S) | – | – | 5 | 0.095 | 10 | 0.100 | – | – | 50 | 0.050 | 165 | 0.165 |
Eunicidae indet. (C) a | – | – | – | – | – | – | – | – | 5 | ND | – | – |
Flabelligeridae indet. (S) a | – | – | – | – | 5 | ND | 5 | ND | – | – | – | – |
Glyceridae indet. (C) | 10 | 1.387 | 10 | 1.387 | 5 | 0.694 | 15 | 2.081 | 10 | 1.387 | 15 | 2.081 |
Goniadidae indet. (C) a | – | – | – | – | – | – | 25 | 0.360 | 20 | 0.288 | 5 | 0.072 |
Lumbrineridae indet. (D) | – | – | – | – | 60 | 0.738 | 105 | 1.292 | 45 | 0.554 | 110 | 1.353 |
Magelonidae indet. (D) | – | – | – | – | 10 | ND | – | – | 10 | ND | 10 | ND |
Maldanidae indet. (D) | – | – | 5 | 0.089 | – | – | – | – | 5 | 0.089 | 25 | 0.443 |
Nephtyidae indet. (C) | 95 | 0.371 | 250 | 0.975 | 60 | 0.234 | 320 | 1.248 | 605 | 2.360 | 1,220 | 4.758 |
Nereidae indet. (C) | – | – | 30 | 0.336 | 65 | 0.728 | 180 | 2.016 | 480 | 5.376 | 425 | 4.760 |
Onuphidae indet. (O) | 15 | 0.852 | 5 | 0.284 | 485 | 27.548 | 395 | 22.436 | 370 | 21.016 | 385 | 21.868 |
Opheliidae indet. (D) | 20 | 0.618 | 10 | 0.309 | 45 | 1.391 | 5 | 0.155 | 15 | 0.464 | 5 | 0.155 |
Orbiniidae indet. (D) | 490 | 1.764 | 45 | 0.162 | 330 | 1.188 | 175 | 0.630 | 165 | 0.594 | 140 | 0.504 |
Paraonidae indet. (S) | – | – | – | – | 5 | ND | – | – | 230 | ND | 210 | ND |
Phyllodocidae indet. (C) | – | – | – | – | 5 | ND | – | – | – | – | – | – |
Polychaeta indet. | 15 | ND | 20 | ND | 10 | ND | 20 | ND | 90 | ND | – | – |
Polynoidae indet. (C) | 25 | 1.055 | 80 | 3.376 | 265 | 11.183 | 385 | 16.247 | 100 | 4.220 | 140 | 5.908 |
Sabellidae indet. (C) | 5 | ND | – | – | – | – | – | – | 5 | ND | – | – |
Spionidae indet. (Su) | 65 | 0.117 | 1,690 | 3.042 | 160 | 0.288 | 215 | 0.387 | 475 | 0.855 | 1,110 | 1.998 |
Syllidae indet. (C) | 15 | ND | 25 | ND | 5 | ND | 50 | ND | 10 | ND | 120 | ND |
Terebellidae indet. (S) | – | – | – | – | 85 | 25.951 | 90 | 27.477 | – | – | 5 | 1.527 |
Nemertini | ||||||||||||
Nemertina indet. | – | – | 35 | 0.312 | – | – | 35 | 0.312 | – | – | 100 | 0.890 |
Plathelmintes | ||||||||||||
Turbellaria indet. (H) a | 2,980 | ND | – | – | – | – | 20 | ND | – | – | 5 | ND |
Crustacea | ||||||||||||
Acanthonyx petiveri (O) a | – | – | – | – | 35 | 0.473 | 45 | 0.608 | – | – | 5 | 0.068 |
Alpheus inca (C) a | 5 | 0.607 | – | – | 45 | 5.459 | 30 | 3.639 | – | – | 25 | 3.033 |
Betaeus truncatus (C) | – | – | – | – | 100 | 3.760 | 30 | 1.128 | 30 | 1.128 | 15 | 0.564 |
Blepharipoda spinimana (Su) a | 5 | ND | – | – | – | – | – | – | – | – | – | – |
Callianassa sp. (C) a | – | – | – | – | 5 | ND | – | – | – | – | – | – |
Cancer setosus (C) | – | – | – | – | 40 | 27.724 | 5 | 3.466 | 5 | 3.466 | – | – |
Caprella sp. (D) | – | – | – | – | 7,690 | 10.766 | – | – | 10 | 0.104 | – | – |
Cumacea indet. (D) a | 5 | 0.093 | – | – | – | – | – | – | – | – | – | – |
Emerita analoga (Su) a | – | – | 220 | 274.494 | – | – | – | – | – | – | – | – |
Eurypanopeus crenatus (C) | – | – | – | – | 295 | 26.255 | 285 | 25.365 | 115 | 10.235 | 115 | 10.235 |
Eurypodius latreillei (O) | – | – | – | – | 10 | 0.406 | 25 | 1.015 | 20 | 0.812 | 20 | 0.812 |
Gammaridae indet. | 2,780 | 3.336 | 3,995 | 4.794 | 2,105 | 2.526 | 3,250 | 3.900 | 130 | 0.156 | 280 | 0.336 |
Gomeza serrata (C) a | – | – | – | – | – | – | – | – | – | – | 5 | ND |
Hepatus chiliensis (C) | 5 | 0.916 | – | – | 5 | 0.916 | 5 | 0.916 | 10 | 1.832 | 5 | 0.916 |
Inachoides microrhynchus (O) | – | – | – | – | – | – | 15 | ND | 20 | ND | – | – |
Latreutes antiborealis (O) | 10 | 0.279 | 5 | 0.140 | – | – | 40 | 1.116 | 5 | 0.140 | 10 | 0.279 |
Lepidopa chilensis (Su) a | 5 | ND | – | – | – | – | – | – | – | – | – | – |
Mursia gaudichaudi (C) | – | – | – | – | – | – | 5 | ND | 80 | ND | – | – |
Pagurus sp. (C) | 40 | 2.128 | 10 | 0.532 | 390 | 20.748 | 600 | 31.920 | 230 | 12.236 | 90 | 4.788 |
Pilumnoides perlatus (C) | – | – | – | – | 125 | 11.150 | 135 | 12.042 | 25 | 2.230 | 5 | 0.446 |
Pinnixa transversalis & P. valdiviensis (O) | – | – | – | – | 15 | 0.293 | 25 | 0.488 | 325 | 6.338 | 280 | 5.460 |
Pseudocorystes sicarius (C) a | 5 | ND | – | – | 10 | ND | – | – | – | – | – | – |
Pseudosquillopsis lessonii (C) a | – | – | – | – | – | – | – | – | – | – | 5 | ND |
Rhynchocinetes typus (C) a | – | – | – | – | 10 | 0.049 | 55 | 0.270 | – | – | 5 | 0.115 |
Synalpheus spinifrons (C) a | – | – | – | – | 15 | ND | – | – | – | – | – | – |
Echinodermata | ||||||||||||
Arbacia spatuligera (H) | – | – | – | – | 5 | 5.211 | 5 | 5.211 | 20 | 20.842 | – | – |
Ophiuroidea indet. (D) | 5 | 0.669 | 5 | 0.669 | 2,150 | 287.455 | 1,925 | 257.373 | 90 | 12.033 | 120 | 16.044 |
Patiria chilensis (C) a | – | – | – | – | 35 | 13.118 | 25 | 9.370 | – | – | 10 | 3.748 |
Tetrapygus niger (H) a | – | – | – | – | 75 | 17.505 | 10 | 2.334 | 15 | 3.501 | – | – |
Hemichordata | ||||||||||||
Schizocardium peruvianum | – | – | 20 | ND | 40 | ND | 5 | ND | – | – | – | – |
Chordata | ||||||||||||
Branchiostoma elongatum (Su) | 10 | 2.652 | 170 | 45.084 | – | – | – | – | – | – | – | – |