Figure 1
Figure 2
Figure 3
Mollusk species contributing to a similarity between the years of 2012, 2013 and 2014 and their average similarity
| 2012 | 2013 | 2014 | 2012-2013 | 2012-2014 | 2013-2014 | |
|---|---|---|---|---|---|---|
| average similarity/dissimilarity (%) | 23 | 39 | 30 | 77 | 79 | 70 |
| Corbula gibba | 22 | - | - | - | - | - |
| Cerithidium diplax | 16 | 39 | 14 | 11 | 6 | 7 |
| Nassarius pygmaeus | 11 | - | 7 | - | - | - |
| Finella pupoides | 11 | 24 | 22 | 8 | 7 | 7 |
| Bittium reticulatum | 6 | 11 | 13 | 7 | 6 | 6 |
Coordinates, sampling methods, depth range and biotopes of the stations
| Stations | Coordinates Latitude-Longitude | Sampling methods | Depth range (m) | Biotope |
|---|---|---|---|---|
| 1 | 36°51'35.0"N-35°54'45.1"E | Grab | 3.4 | Sandy mud |
| 2 | 36°52'10.1"N-35°55'07.3"E | Grab | 4.4 | Sandy mud |
| 3 | 36°52'23.0"N-35°55'25.1"E | Grab | 4 | Sandy mud |
| 4 | 36°51'52.2"N-35°55'28.3"E | Grab | 8.6 | Sandy mud |
| 5 | 36°50'57.4"N-35°55'47.2"E | Grab | 30 | Sandy mud |
| 6 | 36°52'04.0"N-35°55'47.0"E | Grab | 11.7 | Silt |
| 7 | 36°51'24.1"N-35°56'00.2"E | Grab | 25.5 | Silt |
| 8 | 36°51'37.2"N-35°56'16.8"E | Grab | 25.4 | Silt |
| 9 | 36°50'59.7"N-35°55'33.1"E | Grab | 24 | Silt |
| 10 | 36°51'22.1"N-35°54'57.6"E | Grab | 7.3 | Sand |
| 11 | 36°50'27.0"N-35°54'32.0"E | Grab | 12.2 | Silt |
| 12 | 36°49'45.2"N-35°55'43.4"E | Grab | 37 | Silt |
Temporal variation in the community parameters at the stations in 2012, 2013, 2014
| Station | Number of species | Number of individuals (ind m-2) | Total Biomass (g m-2) | Diversity index | Evenness index | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012 | 2013 | 2014 | 2012 | 2013 | 2014 | 2012 | 2013 | 2014 | 2012 | 2013 | 2014 | 2012 | 2013 | 2014 | |
| 1 | 37 | 17 | 33 | 4090 | 950 | 2050 | 222.30 | 0.43 | 2.25 | 3.74 | 2.94 | 2.95 | 0.72 | 0.72 | 0.58 |
| 2 | 17 | 23 | 29 | 2140 | 6050 | 2900 | 41.63 | 1.84 | 0.96 | 1.96 | 1.94 | 2.81 | 0.48 | 0.42 | 0.58 |
| 3 | 21 | 10 | 22 | 1550 | 2470 | 3540 | 55.80 | 9.36 | 1.14 | 3.32 | 2.14 | 2.32 | 0.76 | 0.58 | 0.52 |
| 4 | 44 | 11 | 22 | 11910 | 980 | 4330 | 325.32 | 6.28 | 61.42 | 2.15 | 1.97 | 1.98 | 0.39 | 0.57 | 0.44 |
| 5 | 4 | 23 | 20 | 120 | 4530 | 1360 | 0.50 | 7.94 | 31.99 | 1.61 | 2.46 | 3.04 | 0.81 | 0.53 | 0.70 |
| 6 | 15 | 8 | 14 | 970 | 420 | 1000 | 2.27 | 2.35 | 0.03 | 3.13 | 1.42 | 2.86 | 0.80 | 0.47 | 0.75 |
| 7 | 1 | 11 | 14 | 10 | 520 | 1130 | 0.15 | 0.61 | 0.38 | 0.00 | 2.63 | 3.02 | 0.00 | 0.71 | 0.79 |
| 8 | 1 | 7 | 10 | 10 | 190 | 470 | 0.02 | 0.12 | 0.05 | 0.00 | 2.27 | 2.53 | 0.00 | 0.81 | 0.76 |
| 9 | 3 | 5 | 20 | 40 | 140 | 3170 | 0.07 | 0.11 | 0.33 | 1.50 | 1.43 | 1.83 | 0.95 | 0.62 | 0.42 |
| 10 | 28 | 28 | 33 | 7390 | 7490 | 2190 | 229.15 | 3.59 | 36.52 | 2.78 | 2.71 | 3.94 | 0.58 | 0.56 | 0.78 |
| 11 | 16 | 12 | 21 | 860 | 1500 | 1030 | 9.89 | 380.40 | 2.16 | 3.21 | 2.33 | 2.78 | 0.80 | 0.65 | 0.63 |
| 12 | 4 | 5 | 1 | 180 | 150 | 10 | 0.44 | 0.06 | 0.02 | 1.23 | 1.96 | 0.00 | 0.62 | 0.85 | 0.00 |
The number of species (S), the number of individuals (N), biomass (g m-2) (B), frequent and dominant species in 2012, 2013 and 2014
| Years | S | N | B | Frequent species (%) | Dominant species (%) |
|---|---|---|---|---|---|
| 2012 | 64 | 2927 | 887.53 | C. gibba (83%) | B. reticulatum (39%) |
| 2013 | 64 | 2539 | 413.08 | F. pupoides (100%) | C. diplax (43%) |
| 2014 | 86 | 2318 | 137.24 | F. pupoides (92%) | F. pupoides (41%) |