Table 2 Abundance of each species (number of individuals per 0.27 m² of Posidonia oceanica meadow) of the different amphipod species
From: Community structure of amphipods on shallow Posidonia oceanica meadows off Tunisian coasts
t. g. | TA | BI | RA | HE | EK | MO | MA | ZO | ZS | DI | |
|---|---|---|---|---|---|---|---|---|---|---|---|
Ampelisca rubella A. Costa, 1864 | DS | 24 | 3 | 30 | 4 | 13 | 0.58 | ||||
Ampelisca spinipes Boeck, 1861 | DS | 9 | 2 | 3 | 1 | 2 | 1 | 0.14 | |||
Ampelisca unidentata (Schellenberg, 1936) | DS | 5 | 2 | 7 | 15 | 1 | 8 | 13 | 35 | 3 | 0.70 |
Amphilochus neapolitanus Della Valle, 1893 | U | 15 | 8 | 5 | 6 | 3 | 4 | 18 | 9 | 0.54 | |
Dexamine spiniventris (A. Costa, 1853) | HeD | 2 | 0.02 | ||||||||
Dexamine spinosa (Montagu, 1813) | HeD | 16 | 9 | 14 | 7 | 59 | 27 | 5 | 1.08 | ||
Tritaeta gibbosa (Bate, 1862) | U | 1 | 1 | 8 | 3 | 1 | 4 | 2 | 0.16 | ||
Hyale camptonyx (Heller, 1866) | He | 83 | 75 | 245 | 244 | 272 | 200 | 373 | 211 | 131 | 14.47 |
Parhyale aquilina (A. Costa, 1857) | He | 4 | 0.03 | ||||||||
Leucothoe venetiarum Giordani-Soika, 1950 | Co | 2 | 0.02 | ||||||||
Leucothoe spinicarpa (Abildgaard, 1789) | Co | 1 | 3 | 0.03 | |||||||
Lysianassa costae (Milne-Edwards, 1830) | DC | 1 | 11 | 2 | 2 | 1 | 6 | 2 | 9 | 0.27 | |
Lepidepecreum longicorne (Bate & Westwood, 1861) | DC | 4 | 0.03 | ||||||||
Orchomene humilis (A. Costa, 1853) | DC | 6 | 7 | 3 | 0.13 | ||||||
Socarnes filicornis (Heller, 1866) | DC | 12 | 0.09 | ||||||||
Elasmopus brasiliensis (Dana, 1855) | He | 2 | 14 | 23 | 11 | 36 | 10 | 0.76 | |||
Elasmopus pectenicrus (Bate, 1862) | He | 84 | 0.66 | ||||||||
Elasmopus pocillimanus (Bate, 1862) | He | 2 | 3 | 9 | 4 | 0.14 | |||||
Gammarella fucicola (Leach, 1814) | De | 10 | 0.08 | ||||||||
Maera hirondellei Chevreux, 1900 | U | 7 | 7 | 4 | 2 | 10 | 20 | 3 | 0.42 | ||
Maera inaequipes A. Costa, 1857 | U | 24 | 31 | 97 | 13 | 13 | 59 | 24 | 67 | 18 | 2.73 |
Pereionotus testudo (Montagu, 1808) | He | 3 | 3 | 3 | 0.07 | ||||||
Metaphoxus simplex (Bate, 1857) | U | 2 | 4 | 0.05 | |||||||
Stenothoe gallensis Walker, 1904 | O | 125 | 0.99 | ||||||||
Stenothoe monoculoides (Montagu, 1813) | O | 3 | 5 | 7 | 1 | 9 | 3 | 6 | 0.27 | ||
Aora gracilis (Bate, 1857) | DS | 4 | 5 | 3 | 6 | 0.14 | |||||
Aora spinicornis Afonso, 1976 | DS | 9 | 0.07 | ||||||||
Lembos websteri Bate, 1857 | D | 15 | 30 | 0.36 | |||||||
Lembos sp | D | 2 | 25 | 11 | 7 | 0.36 | |||||
Leptocheirus guttatus (Grube, 1864) | DS | 14 | 11 | 49 | 32 | 0.84 | |||||
Microdeutopus chelifer (Bate, 1862) | D | 34 | 2 | 13 | 0.39 | ||||||
Ampithoe helleri G. Karaman, 1975 | He | 373 | 430 | 335 | 1,190 | 1,700 | 1,615 | 631 | 477 | 60 | 53.75 |
Ampithoe ramondi Audouin, 1826 | He | 42 | 106 | 88 | 91 | 60 | 39 | 17 | 30 | 32 | 3.99 |
Apocorophium acutum (Chevreux, 1908) | DS | 6 | 0.05 | ||||||||
Caprella acanthifera Leach, 1814 | O | 10 | 2 | 42 | 0.43 | ||||||
Caprella grandimana Mayer, 1882 | O | 4 | 3 | 0.06 | |||||||
Caprella liparotensis Leach, 1814 | O | 3 | 0.02 | ||||||||
Deutella schieckei Cavedini, 1982 | O | 9 | 6 | 12 | 0.21 | ||||||
Pseudoprotella phasma (Montagu, 1804) | O | 7 | 32 | 22 | 0.48 | ||||||
Ericthonius punctatus (Bate, 1857) | DS | 121 | 335 | 101 | 585 | 68 | 55 | 203 | 21 | 131 | 12.78 |
Ericthonius difformis Milne-Edwards, 1830 | DS | 3 | 1 | 3 | 0.06 | ||||||
Ischyrocerus inexpectatus Ruffo, 1959 | DS | 18 | 9 | 2 | 0.23 | ||||||
Gammaropsis dentata Chevreux, 1900 | DS | 24 | 64 | 36 | 0.98 | ||||||
Gammaropsis ostroumoui (Sowinsky, 1898) | DS | 47 | 0.37 | ||||||||
S | 18 | 18 | 21 | 26 | 25 | 20 | 25 | 13 | 12 | ||
N(0.27 m²) | 785 | 1,143 | 1,058 | 2,261 | 2,185 | 2,258 | 1,481 | 889 | 612 | ||
H′(log 2) | 2.69 | 2.58 | 3.03 | 2.06 | 1.29 | 2.08 | 2.61 | 2.09 | 2.84 | ||
J′ | 0.64 | 0.62 | 0.69 | 0.44 | 0.28 | 0.48 | 0.56 | 0.56 | 0.79 |