2003 Report - Great Lakes Fishery Commission

Lake Erie
Lake Erie has 842 (525 Canadian, 317 U. S.) tributaries. 21 (11 Canadian, 10 U. S.) tributaries have historical
records of sea lamprey larvae production, and of these, 8 (3 Canadian, 5 U. S.) tributaries have been treated with
lampricide at least once during 1994-2003. 5 (2 Canadian, 3 U. S.) tributaries are treated on a regular cycle.
Table 5 provides details on the application of lampricides to tributaries treated during 2003 and Fig. 1 shows the
locations of the tributaries. In 2003:
• Lampricide treatments were completed in 3 Lake Erie tributaries (1 Canadian, 2 U. S.); and,
• Treatment of the Grand River produced minimal mortality of organisms from several sensitive species that
include mudpuppies (Necturus maculosus), brindled madtoms (Noturus miurus), bullheads (Ameiurus sp.), and
logperch (Percina caprodes).
Table 5. Details on the application of lampricides to tributaries of Lake Erie, 2003 (number in parentheses
corresponds to location of stream in Fig. 1).
Stream Date Discharge
(m 3 )
TFM
(kg) 1
Bayluscide
(kg) 1
Distance Treated
(km)
Canada
Big Cr. (47) May 24 5.7 1,752.4 0.3 55.7
Total (Canada) 5.7 1,752.4 0.3 55.7
United States
Conneaut R. (48) Apr 10 5.9 482.9 --- 88.5
Grand R. (49) Apr 14 16.7 1,091.7 --- 48.2
Total (U.S.) 22.6 1,574.6 --- 136.7
Total (for lake) 28.3 3,327.0 0.3 192.4
1
Lampricide quantities are in kg active ingredient
11