Figure 1
Figure 2
Figure 3
Figure 4
Checklist of Mollusca species recorded in the studied reach of the Vistula River
| No. | species | previous studies (Kownacki 1999: the reach of the river from Kraków to Warszawa) | the current study (2012–16): the reach of the river from Opatowiec to Puławy, and Maćkiewicz 2013: the Vistula in Kraków (in brackets) |
|---|---|---|---|
| GASTROPODA | |||
| 1 | Viviparus viviparus | + | + |
| 2 | Potamopyrgus antipodarum | – | + (+) |
| 3 | Valvata piscinalis | + | + |
| 4 | Bithynia sp./Bithynia tentaculata | + | + (+) |
| 5 | Physella acuta | + | + |
| 6 | Lymnaea stagnalis | + | + |
| 7 | Galba truncatula | + | + |
| 8 | Radix auricularia | + | + |
| 9 | Radix balthica | + | + |
| 10 | Planorbis planorbis | + | + (+) |
| 11 | Bathyomphalus contortus | + | + |
| 12 | Anisus vortex | + | + |
| 13 | Gyraulus albus | + | + |
| 14 | Planorbarius corneus | + | + |
| 15 | Ancylus fluviatilis | + | + |
| BIVALVIA | |||
| 16 | Anodonta anatina | + | + (+) |
| 17 | Unio pictorum | + | + |
| 18 | Unio tumidus | – | + |
| 19 | Unio crassus | + | + (+) |
| 20 | Corbicula fluminea | – | + (+) |
| 21 | Dreissena polymorpha | – | + |
| 22 | Sinanodonta woodiana | – | + |
| 23 | Pseudanodonta complanata | + | – |
| 24 | Anodonta cygnea | + | + |
| 25 | Sphaerium corneum | – | + (+) |
| 26 | Pisidium sp. | – | + |
| Total number of taxa | 19 | 25 | |
Occurrence of Corbicula fluminea in the stretch (ca 210 km long) of the Vistula River between Opatowiec and Puławy
| Sampling station no. | Nearest locality name | Coordinates | Date of the first record/density measurement | Number of samples | Mean density at occupied sites [ind. per m2] | ± SD | Description of sampling station |
|---|---|---|---|---|---|---|---|
| 1 | Opatowiec – ferry | 50 | 9 February 2016 9 February 2016 | 7 | 2.0 density and shell length measured in 2016 and shown in Fig. 4. | ± 1.63 | the left bank of the Vistula above the ferry route in Opatowiec, muddy-gravel bottom, regulated river channel |
| 2 | Połaniec – heated water drain | 50 | 1 September 2011 3 September 2016 | 74.4 | ± 16.46 | the left bank of the channel with stone lining, discharging heated water from the power plant | |
| 3 | Tursko Małe – the Vistula below the mouth of the power station channel | 50 | 6 | 142.0 density and shell length measured in 2016 and shown in Fig. 4. | ±46.89 | the left bank of the Vistula with stone lining, ca 100 m below the mouth of the channel discharging heated water from the power plant, bottom covered with stones | |
| 4 | Niekurza | 50 | 3 September 2016 3 September 2016 | 6694.5 density and shell length measured in 2016 and shown in Fig. 4. | ± 1458.21 | the firth between the groyne field on the left bank of the Vistula opposite of the Wistoka mouth, muddy-sandy bottom | |
| 5 | Tarnobrzeg (Siarkopol) – bridge | 50 | 9 February 2016 9 February 2016 | 37.0 | ± 10.32 | sandy shoal in the river channel under the bridge (national road number 9) | |
| 6 | Ciszyca – ferry | 50 | 6.0 | ± 3.58 | the left bank of the Vistula at the groyne field, muddy-gravel bottom | ||
| 7 | Sandomierz – bridge | 50 | 7 June 2014 2 September 2016 | 7 | 1.9 | ± 1.77 | |
| 8 | Kamień Łukawski | 50 | 6 June 2014 2 September 2016 | 6.0 | ± 2.0 | sand banks or sandbars and shoal water in the river channel | |
| 9 | Kępa Chwatowska – sandbar 1 | 50 | 25 May 2012 2 September 2016 | 6 | 107.2 | ± 8.52 | |
| 10 | Kępa Chwałowska – sandbar 2 | 50 | 84.2 | ± 14.03 | |||
| 11 | Kępa Chwałowska – sandbar 3 | 50 | 11 June 2014 2 September 2016 | 108.3 | ± 93.39 | ||
| 12 | Kępa Chwałowska – sandbar 4 | 50 | 84.8 | ± 37.93 | |||
| 13 | Winiary | 50 | 25 May 2012 1 September 2016 | 23.3 | ± 8.09 | ||
| 14 | Popowice – sandbar 1 | 50 | 17 June 2014 1 September 2016 | 19.0 | ± 2.61 | ||
| 15 | Popowice – sandbar 2 | 50 | 25 May 2012 1 September 2016 | 7 | 16.0 | ± 7.53 | |
| 16 | Popowice – sandbar 3 | 50 | 17 June 2014 1 September 2016 | 6 | 16.3 | ± 12.75 | |
| 17 | Zawichost – ferry | 50 | 11.5 | ± 1.97 | the firth between groyne fields on the left bank of the Vistula, muddy-sandy bottom | ||
| 18 | Piotrowice – landing | 50 | 6 June 2014 1 September 2016 | 7 | 11.9 | ± 3.39 | the left bank of the Vistula at the groyne field, muddy-gravel bottom |
| 19 | Piotrowice – passage on road 759 | 50 | 6 | 10.8 | ± 5.12 | ||
| 20 | Opoka Duża – sandbar 1 | 50 | 8 May 2014 1 September 2016 | 12.5 | ± 3.94 | sand banks or sandbars and shoal water in the river channel | |
| 21 | Opoka Duża – sandbar 2 | 50 | 11 June 2014 1 September 2016 | 20.3 | ± 8.24 | ||
| 22 | Opoka Duża – sandbar 3 | 50 | 11 June 2014 11 June 2014 | 42 bottom samples (3 × 0.385 m × 1 m of the marked bottom area of 1 m2) | 17.8 density and shell length measured in 2016 and shown in Fig. 4. | ± 16.74 | |
| 23 | Annopol – bridge | 50 | 11 July 2014 1 September 2016 | 6 | 11.5 | ± 5.13 | the firth between groyne fields on the right bank of the Vistula, muddy-sandy bottom |
| 24 | Józefów | 512 2′32.29″N 21 | 2 September 2016 2 September 2016 | 7 | 4.0 density and shell length measured in 2016 and shown in Fig. 4. | ± 2.16 | the side channel on the right bank of the Vistula |
| 25 | Kłudzie – ferry | 51 | 6 | 88.0 density and shell length measured in 2016 and shown in Fig. 4. | ± 11.93 | the left bank, gravel bottom, Corbicula in sand under a layer of gravel and small stones | |
| 26 | Nasiłów – ferry | 51 | 3 September 2016 3 September 2016 | 24.0 density and shell length measured in 2016 and shown in Fig. 4. | ± 4.15 | sandbar on the left bank of the Vistula | |
| 27 | Puławy | 51 | 2.8 density and shell length measured in 2016 and shown in Fig. 4. | ± 1.72 | the left bank of the Vistula at the groyne field, sandy bottom |