No. | species | previous studies ( |
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 | + | + | |
2 | – | + (+) | |
3 | + | + | |
4 | + | + (+) | |
5 | + | + | |
6 | + | + | |
7 | + | + | |
8 | + | + | |
9 | + | + | |
10 | + | + (+) | |
11 | + | + | |
12 | + | + | |
13 | + | + | |
14 | + | + | |
15 | + | + | |
BIVALVIA | |||
16 | + | + (+) | |
17 | + | + | |
18 | – | + | |
19 | + | + (+) | |
20 | – | + (+) | |
21 | – | + | |
22 | – | + | |
23 | + | – | |
24 | + | + | |
25 | – | + (+) | |
26 | – | + | |
Total number of taxa | 19 | 25 |
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 |
± 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 |
±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 |
± 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 |
± 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 |
± 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 |
± 11.93 | the left bank, gravel bottom, |
|
26 | Nasiłów – ferry | 51 |
3 September 2016 3 September 2016 | 24.0 density and shell length measured in 2016 and shown in |
± 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 |
± 1.72 | the left bank of the Vistula at the groyne field, sandy bottom |