Table 5 Polychaetes from seasonal samples of the sciaphilic alga community at station 3 (replicates of each depth level pooled). N number of individuals, S number of species, A (=N/m2) abundance, F frequency, d Margalef richness, H’ Shannon-Weaver index, J’ equitability index, 30 m* sampling in July 1998
Species | Summer 1997 | Autumn 1997 | Winter 1998 | Spring 1998 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | F | A | F | A | F | A | F | ||||||||||
15 m | 30 m | 30 m* | 40 m |
| 15 m | 30 m | 40 m |
| 15 m | 30 m | 40 m |
| 15 m | 30 m | 40 m |
| |
Laetmonice hystrix (Savigny, 1820) |
|
|
|
|
|
|
|
|
|
|
| 5 | 7 |
|
|
|
|
Harmothoe areolata (Grube, 1860) |
|
|
|
|
|
|
| 5 | 7 | 5 |
|
| 7 | 5 | 10 |
| 20 |
Harmothoe ljungmani (Malmgren, 1867) |
|
|
|
|
| 5 |
| 5 | 14 | 5 |
|
| 7 |
| 5 |
| 7 |
Harmothoe spinifera (Ehlers, 1864) |
|
| 5 |
| 5 |
| 5 |
| 7 |
| 5 | 5 | 14 |
| 5 | 5 | 14 |
Scalisetosus fragilis (Claparede, 1868) |
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
|
| 7 |
Pholoe minuta (Fabricius, 1780) |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
| 7 |
Chrysopetalum debile (Grube, 1855) |
|
|
|
|
|
|
|
|
|
| 5 |
| 7 |
| 5 |
| 7 |
Euphrosine foliosa Audouin & MilneEdwards, 1833 |
| 5 |
|
| 5 |
|
|
|
|
| 5 |
| 7 |
|
|
|
|
Phyllodoce madeirensis (Langerhans, 1880) | 5 |
| 5 |
| 10 | 5 | 15 |
| 27 |
|
|
|
|
| 5 |
| 7 |
Kefersteinia cirrata (Keferstein, 1862) | 5 |
|
| 5 | 10 |
|
| 20 | 14 | 5 |
| 15 | 27 |
|
|
|
|
Syllidia armata Quatrefages, 1865 |
|
|
|
|
|
|
| 5 | 7 | 5 |
|
| 7 |
|
|
|
|
Pionosyllis lamelligera Saint-Joseph, 1856 | 5 | 5 |
| 5 | 15 |
|
| 5 | 7 | 5 |
|
| 7 | 5 | 5 | 5 | 20 |
Exogone naidina Orsted, 1845 | 55 | 10 | 25 |
| 45 |
|
|
|
| 5 |
|
| 7 | 5 |
|
| 7 |
Grubeosyllis limbata (Claparede, 1868) | 45 | 35 | 10 |
| 45 |
|
|
|
|
|
|
|
|
| 5 |
| 7 |
Sphaerosyllis pirifera Claparede, 1868 | 130 | 50 | 55 | 20 | 90 | 15 | 65 | 10 | 54 | 35 | 30 |
| 46 | 25 | 65 |
| 54 |
Eusyllis blomstrandi Malmgren, 1867 | 20 | 10 | 5 | 5 | 30 |
|
|
|
| 5 |
|
| 7 |
|
|
|
|
Pterosyllis formosa Claparede, 1863 | 5 |
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Haplosyllis spongicola (Grube, 1855) | 5 | 5 |
| 10 | 15 | 5 |
|
| 7 | 10 | 5 | 15 | 34 | 5 | 10 | 5 | 20 |
Syllis amica Quatrefages, 1865 |
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
| 5 | 14 |
Syllis armillaris Muller, 1771 |
|
|
|
|
|
|
| 20 | 14 |
| 5 |
| 7 |
|
|
|
|
Syllis cirropunctata Michel, 1909 |
|
|
|
|
|
|
| 5 | 7 |
|
|
|
|
|
|
|
|
Syllis cornuta Rathke, 1843 | 35 | 5 | 25 | 20 | 55 |
|
|
|
| 15 | 10 | 5 | 34 | 25 | 5 | 5 | 40 |
Syllis hyalina Grube, 1843 | 120 | 95 | 65 | 105 | 80 | 30 |
| 25 | 40 | 10 | 30 | 25 | 46 | 95 | 50 | 5 | 54 |
Syllis krohnii Ehlers, 1864 | 5 |
|
|
| 5 |
| 5 |
| 7 |
|
|
|
|
| 5 |
| 7 |
Syllis prolifera Krohn, 1852 | 65 | 10 | 15 | 15 | 45 | 15 | 15 |
| 27 | 25 | 10 | 5 | 34 | 20 | 25 | 5 | 46 |
Trypanosyllis coeliaca Claparede, 1868 | 10 | 10 | 20 | 5 | 20 | 10 |
| 15 | 20 | 5 | 20 |
| 27 |
|
|
|
|
Trypanosyllis zebra (Grube, 1860) | 15 | 5 | 5 |
| 15 | 10 | 5 | 25 | 46 | 20 |
|
| 20 | 15 | 5 |
| 20 |
Ceratonereis costae (Grube, 1840) |
|
|
|
|
|
|
| 5 | 7 |
|
|
|
|
|
|
|
|
Nereis rava Ehlers, 1868 | 100 |
|
| 5 | 30 | 35 | 5 | 35 | 46 | 35 | 40 | 20 | 54 | 55 | 15 |
| 40 |
Nereis zonata Malmgren, 1867 | 10 | 5 |
| 5 | 15 |
| 10 | 15 | 27 | 5 | 10 | 10 | 34 | 5 |
|
| 7 |
Platynereis dumerilii (Audoin & Milne Edwards, 1833) | 20 | 30 |
|
| 35 | 55 | 30 | 15 | 54 | 15 |
| 40 | 34 |
|
| 5 | 7 |
Nereididae Heteronereis stage |
| 15 |
|
| 10 |
|
|
|
|
|
|
|
|
|
|
|
|
Glycera tesselata Grube, 1863 | 115 | 110 | 65 | 40 | 85 | 5 | 70 | 30 | 67 | 60 | 55 | 40 | 67 | 45 | 80 |
| 60 |
Glycinde nordmanni (Malmgren, 1865) | 5 |
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Goniada maculata Orsted, 1843 |
| 5 |
|
| 5 |
|
|
|
|
|
| 5 | 7 |
|
|
|
|
Arabella iricolor (Montagu, 1804) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dorvillea rubrovittata (Grube, 1855) | 5 |
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Eunice oerstedii Stimpson, 1854 | 5 |
|
|
| 5 | 5 |
|
| 7 | 15 |
| 5 | 27 | 15 | 5 |
| 20 |
Eunice torquata Quatrefages, 1865 |
|
|
|
|
|
|
| 10 | 7 |
|
|
|
|
| 5 |
| 7 |
Eunice vittata (Delle Chiaje, 1929) | 20 | 65 | 30 | 5 | 50 |
| 35 | 10 | 27 | 65 | 5 | 35 | 40 | 20 | 25 | 5 | 40 |
Lysidice ninetta (Audoin & Milne Edwards, 1833) | 30 | 15 |
| 35 | 40 |
| 5 | 5 | 14 | 15 | 20 | 5 | 34 | 35 | 20 | 5 | 54 |
Nematonereis unicornis (Grube, 1840) | 5 |
| 5 |
| 10 | 5 | 5 |
| 14 |
| 5 |
| 7 |
| 10 |
| 7 |
Lumbrineris coccinea (Renier, 1804) |
| 5 |
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Scoletoma funchalensis (Kinberg, 1865) | 35 | 15 | 5 |
| 35 | 20 | 10 | 10 | 34 | 35 | 10 | 5 | 40 | 10 | 15 | 10 | 46 |
Onuphis sp. |
|
|
| 5 | 5 |
|
|
|
| 5 |
|
| 7 |
|
|
|
|
Laonice cirrata (Sars, 1851) | 5 |
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Polydora caeca (Orsted, 1843) |
|
|
|
|
|
|
| 5 | 7 |
|
|
|
|
|
|
|
|
Polyopthalmus pictus (Dujardin, 1839) |
|
|
|
|
|
| 5 | 5 | 14 |
|
|
|
|
| 5 | 5 | 14 |
Pherusa sp. |
|
|
|
|
|
|
|
|
|
|
| 5 | 7 | 5 |
|
| 7 |
Amphitrite variabilis (Risso, 1826) | 10 | 10 | 10 | 5 | 30 |
|
|
|
| 45 |
| 10 | 20 |
|
|
|
|
Theostoma oerstedi (Claparede, 1864) | 5 |
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
Polycirrus aurianticus Grube, 1860 |
|
|
|
|
|
|
|
|
| 5 |
|
| 7 |
|
|
|
|
Terebellides stroemi Sars, 1835 | 25 |
|
|
| 15 |
|
| 5 | 7 |
|
|
|
|
|
|
|
|
Amphiglena mediterranea (Leyding, 1851) | 120 | 35 | 20 | 15 | 65 | 10 | 15 |
| 20 | 40 | 5 | 15 | 46 | 40 | 10 | 5 | 40 |
Branchiomma bombyx (Dalyell, 1853) | 15 | 25 | 15 |
| 35 |
|
|
|
|
|
| 15 | 14 |
|
|
|
|
Sabella pavonina Savignyi, 1820 | 5 |
|
|
| 5 |
|
| 5 | 7 | 10 |
|
| 7 |
|
|
|
|
Hydroides pseudouncinata Zibrowius, 1968 |
|
|
|
|
|
|
|
|
|
|
| 10 | 14 |
|
|
|
|
Placostegus crystallinus Zibrowius, 1968 |
|
|
|
|
|
| 5 | 5 | 14 |
|
|
|
|
|
| 5 | 7 |
Pomatoceros lamarckii (Quatrefages, 1865) |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
| 7 |
Pomatoceros triqueter (Linnaeus, 1865) | 30 |
|
| 10 | 30 | 5 |
|
| 7 | 5 | 5 |
| 14 | 25 | 5 |
| 20 |
Jasmineira candela (Grube, 1863) |
|
|
| 5 | 5 |
|
| 5 | 7 | 5 |
|
| 7 |
|
|
|
|
Janita fimbriata (DelleChiaje, 1822) |
| 5 |
|
| 5 |
|
|
|
|
|
| 15 | 20 |
| 5 |
| 7 |
Serpula concharum Langerhans, 1880 | 5 | 15 |
|
| 15 | 5 |
|
| 7 |
|
|
|
|
| 25 | 5 | 27 |
Serpula vermicularis Linnaeus, 1767 | 5 |
|
|
| 5 |
| 5 |
| 7 |
|
| 20 | 14 |
|
| 15 | 14 |
Vermiliopsis infundibulum (Gmelin, 1788) | 65 | 10 | 15 | 15 | 50 | 15 | 10 | 15 | 34 | 15 | 5 | 20 | 34 | 45 | 25 | 5 | 54 |
Protula sp. |
|
|
| 5 | 5 | 5 |
| 10 | 20 |
|
|
|
|
|
|
|
|
S | 37 | 27 | 19 | 21 |
| 18 | 18 | 27 |
| 29 | 19 | 23 |
| 21 | 29 | 16 |
|
N | 233 | 122 | 80 | 68 |
| 49 | 62 | 63 |
| 103 | 56 | 66 |
| 93 | 88 | 19 |
|
A | 1,165 | 610 | 400 | 340 |
| 260 | 320 | 330 |
| 530 | 285 | 350 |
| 510 | 465 | 100 |
|
d | 6.61 | 5.41 | 4.1 | 4.74 |
| 4.37 | 4.12 | 6.28 |
| 6.04 | 4.47 | 5.25 |
| 4.41 | 6.25 | 5.1 |
|
H‘ | 4.36 | 4.01 | 3.73 | 3.59 |
| 3.64 | 3.46 | 4.41 |
| 4.29 | 3.72 | 4.15 |
| 3.82 | 4.12 | 3.73 |
|
J‘ | 0.84 | 0.84 | 0.88 | 0.82 |
| 0.87 | 0.83 | 0.93 |
| 0.88 | 0.87 | 0.92 |
| 0.87 | 0.85 | 0.97 |
|