Table 3 Status (Inv= invasive, Trans= translocated, Nat= native), number of samples (n), average and standard deviation (SD) of δ15N and δ13C, mean total length (TL), and weight (W) of fish species and other groups collected from İznik Lake.

From: Predicting the potential implications of perch (Perca fluviatilis) introductions to a biodiversity-rich lake using stable isotope analysis

Species

Status

n

Average δ15N

SD δ15N

Average δ13C

SD δ13C

Mean TL [mm]

Mean W [g]

Atherina boyeri

Trans

10

9.19

0.35

–  21.44

0.29

93.10

5.15

Capoeta tinca

Nat

1

15.72

NA

– 19.88

NA

256.00

162.00

Carassius gibelio

Inv

10

7.03

0.56

– 21.12

1.30

137.80

44.35

Cyprinus carpio

Nat

4

7.62

1.72

– 20.06

0.97

104.00

17.63

Gambusia holbrooki

Inv

10

10.65

0.85

– 17.95

0.77

40.60

0.90

Knipowitschia caucasica

Nat

7

8.46

1.01

– 20.18

1.25

27.86

0.19

Proterorhinus semilunaris

Nat

12

7.10

1.61

– 21.54

1.35

42.55

1.03

Rutilus frisii

Nat

10

9.44

0.91

– 20.85

2.11

218.40

117.45

Rutilus rutilus

Nat

10

9.25

0.33

– 22.90

0.62

143.20

27.80

Salariopsis fluviatilis

Nat

20

7.93

1.38

– 19.98

1.36

30.33

0.27

Silurus glanis

Nat

10

12.60

3.70

– 24.65

2.35

  

Vimba vimba

Nat

10

9.89

0.91

– 22.38

0.99

143.10

26.60

Pelophylax ridibundus

Nat

3

7.58

1.66

– 17.19

1.72

  

Macrozoobenthos

 

1

5.25

NA

– 20.25

NA

  

Phytoplankton

 

2

3.79

0.23

– 22.00

0.07

  

Macrophytes

 

2

1.23

3.48

– 10.10

0.56

  

Algae

 

1

2.09

NA

– 20.58

NA

  

Detritus

 

3

5.63

4.65

– 16.60

4.73

  

Zooplankton

 

2

5.63

0.43

– 24.27

1.07