7874

• UCREFRP Catalog Number: 7874
• Author: Ruppert, J. B. and R. T. Muth.
• Title: Effects Of Electrofishing Fields On Embryos And Larvae Of Razorback Sucker - Final Report.
• USFW Year: 1995.
• USFW - Doc Type: \
• Copyright Material: NO

Table 1.-Mean (SO) percent survival through hatching of razorback sucker embryos exposed for 10 s to one of six
electric fields at one of three development stages. Controls were handled the same as treatments but without exposure to
electric current. N = 60 for each treatment and control (three replicates with 20 embryos each). An asterisk (*) denotes treatment
means that are significantly different (P :s 0.05) than the control mean at each development stage.

Electric field
<D 1.2 V/cm (peak-voltage gradient) 5.0 V/cm 10.0 V/cm
Developmental
stage Control CPSTM 30 Hz 60 Hz 80 Hz 60 Hz 60 Hz
Blastula 88 (3) 43* (13) 45* (20) 50* (10) 40* (10) 43* (3) 3* (6)
Early tailbud 92 (10) 90 (13) 75 (30) 65* (0) 63* (3) 52* (10) 43* (10)
Finfold 95 (5) 92 (8) 90 (13) 78* (10) 73* (3) 72* (6) 70* (9)