The following are the biggest percentage gainers on the TSX Venture Exchange in mid afternoon trading with their price movements TRANSEASTERN POWER TRUST (TEP UN.V), $0.67, +0.14, +26.42% THE CANADIAN BIOCEUTICAL (BCC.V), $0.16, +0.03, +23.08% MERREX GOLD (MXI.V), $0.16,