Non-native trout change the functional structure of benthic communities in streams of the Cape Floristic Region, South Africa

Jeremy M. Shelton1,2, Michael J. Samways3, Jenny A. Day1

1 University of Cape Town, Cape Town, Private Bag X3, Rondebosch 7701, South Africa

2 DST-NRF Centre of Excellence for Invasion Biology, Private Bag X1, Matieland 7602, South Africa

3Department of Conservation Ecology and Entomology, Stellenbosch University, Matieland 7602, South Africa

Corresponding Author: Jeremy Shelton

e-mail:

Tel: +27 74 141 7807

Appendix 1 Site names and mean ± SE fish density (number 100 m-2) estimates for each of the 24 sampling sites

Site number / Site name / Fish density (number 100 m-2)
Redfin / Kurper / Galaxias / Trout
1 / Amandel / 7.43 ± 0.61 / 0.51 ± 0.00 / 0.68 ± 0.34 / -
2 / Bobbejaans / 13.30 ± 0.28 / - / - / -
3 / Buffelshoek / 16.51 ± 2.43 / 6.11 ± 2.95 / - / 2.45 ± 0.40
4 / Du Toits / 72.29 ± 24.52 / - / - / -
5 / Groothoek / - / - / - / 102.32 ± 7.36
6 / Hartmanskloof / - / - / - / 7.85 ± 3.72
7 / Houtboskloof / - / - / - / 40.79 ± 5.90
8 / Jan du Toit / 1.36 ± 0.34 / 0.51 ± 0.29 / - / 0.85 ± 0.17
9 / Kaaimansgat / - / - / 2.46 ± 0.63 / 0.72 ± 0.14
10 / Klip / - / - / - / 61.71 ± 5.13
11 / Kraalstroom / - / - / - / 21.51 ± 1.62
12 / Krom / 0.84 ± 0.17 / - / - / 1.01 ± 0.00
13 / Molenaars trib. / - / - / - / 3.51 ± 0.40
14 / Morainekloof / 2.25 ± 0.16 / 0.80 ± 0.16 / - / 1.93 ± 0.00
15 / Raaswater / - / - / - / 1.30 ± 0.00
16 / Sandspruit / 23.79 ± 5.15 / 11.32 ± 2.77 / 82.69 ± 20.85 / -
17 / Stettyn / 0.41 ± 0.20 / - / 51.93 ± 3.49 / -
18 / Tierhok / 196.71 ± 29.10 / - / - / -
19 / Tierkloof / 21.51 ± 2.03 / 6.09 ± 3.06 / - / -
20 / Tierstel / 103.00 ± 6.87 / 12.63 ± 0.83 / 0.66 ± 0.17 / -
21 / Titus trib. / 16.49 ± 2.36 / 19.59 ± 2.29 / - / -
22 / Waaihoek / 9.65 ± 0.79 / - / 6.83 ± 1.04 / -
23 / Wolwekloof / 136.08 ± 18.88 / 6.69 ± 0.30 / 0.17 ± 0.17 / -
24 / Wolwenberg / 92.36 ± 6.94 / 8.77 ± 1.55 / - / -