Electronic Supplementary Material
SFig. 1 Length-frequency histograms for males (left) and females (right) of R. cliffordpopei from November to May in 2010 and 2011 in Lake Erhai (China).
SFig. 2 Length-frequency histograms for males (left) and females (right) of R. giurinus from January to July in 2010 and 2011 in Lake Erhai (China).
SFig. 1
SFig. 2
STable l Environmental characteristics and abundances of two goby species (Rhinogobius cliffordpopei and Rhinogobius giurinus) in littoral habitat (LH) and profundal habitat (PH) in Lake Erhai (China). Parameters were measured in 2010 and reported values are mean ± standard deviation (“n” is the number of replication).
Environmental variables / Littoral habitat (LH) / Profundal habitat (PH)Water depth (m) / 3.1± 1.2 (n=40) / 15.9 ± 3.1 (n=24)
Water temperature (°C) / 16.9 ± 4.7 (n=40) / 16.9 ± 4.6 (n=24)
Submerged macrophytes (g m-2) / 3307 ± 881 (n=40) / 0 (n=24)
pH / 9.33 ± 0.32 (n=40) / 9.08 ± 0.26 (n=24)
Secchi depth (cm) / 214 ± 36 (n=40) / 255 ± 25 (n=24)
Conductivity (µScm−1) / 237 ± 17 (n=40) / 234 ± 13 (n=24)
Dissolved oxygen (mg L-1) / 9.23 ± 1.56 (n=40) / 7.51 ± 0.88 (n=24)
Total nitrogen (mg L-1) / 0.46 ± 0.12 (n=20) / 0.43 ± 0.05 (n=12)
Total phosphorus (mg L-1) / 0.0138 ± 0.0081 (n=20) / 0.0142 ± 0.0069 (n=12)
Chlorophyll a (mg L-1) / 8.27 ± 2.88 (n=20) / 12.44 ± 3.09 (n=12)
R. cliffordpopei (ind. net-1 day-1) 1 / 250 ± 156 (n=160) / 37 ± 21 (n=96)
R. giurinus (ind. net-1 day-1) 1 / 59 ± 28 (n=160) / 318 ± 268 (n=96)
Proportion of gobies to native fishes 2 / 154:1 / 518:1
1 Mean number of each species collected per benthic fyke net for twenty-four hours
2 The mean number of the two invasive gobies to native fishes in benthic fyke net for twenty-four hours