Table 4 Results of the SIMPER analysis for the zooplankton community in the surface stratum of the Caucahué Channel. Av: Average, Ab: Abundance, Sim: Similarity, Dis: Dissimilarity, Cont %: Taxa percentage contribution, Cum %: Cumulative percentage taxa contribution

Northern section group

Average similarity: 28.94

Taxa

Av. Ab

Av. Sim

Sim/SD

Cont %

Cum %

 Hyperiidae Sp1

2.67

15.96

0.94

55.14

55.14

 Syphonophore Sp1

0.24

3.87

0.79

13.36

68.50

 Calanus sp.

0.16

2.58

0.63

8.92

77.42

 Metridia sp.

0.33

1.57

0.57

5.43

82.85

 Stromateus stellatus eggs

0.06

1.31

0.68

4.52

87.38

 Chaetognatha Sp1

0.10

1.20

0.68

4.16

91.54

Southern section group

Average similarity: 51.47

Taxa

Av. Ab

Av. Sim

Sim/SD

Cont %

Cum %

 Metridia sp.

47.23

39.85

2.10

77.43

77.43

 Chaetognatha Sp1

11.98

6.53

0.97

12.68

90.11

Northern & southern groups

Average dissimilarity: 96.21

Northern

Southern

Taxa

Av. Ab

Av. Ab

Av. Dis

Dis/SD

Cont %

Cum %

 Metridia sp.

0.33

47.23

62.08

3.64

64.53

64.53

 Chaetognatha Sp1

0.10

11.98

14.23

1.47

14.80

79.32

 Hyperiidae Sp1

2.67

0.44

5.21

0.59

5.41

84.74

 Ostracoda Sp1

0.01

2.90

4.91

1.27

5.11

89.84

 Pagurus sp. Zoea

0.00

0.80

1.30

0.66

1.35

91.20