Connecticut River Migratory Fish Counts, 1967-2007
Last updated April 11, 2008
Observed fish counts do not represent all returns.
Data are reported to the nearest individual for totals 0-999; to the nearest 100 for totals 1,000-9,999; to the nearest 1,000 for totals 10,000-99,999; and to the nearest 10,000 for totals greater than or equal to 100,000.
| Year | Atlantic Salmon (All facilities) |
American Shad (River Estimate) |
American Shad (Holyoke only) |
Blueback Herring (Holyoke only) |
Sea Lamprey (Holyoke only) |
Gizzard Shad (Holyoke only) |
|---|---|---|---|---|---|---|
| 1967 | 0 | 750,000 | 19,000 | 356 | 46 | 0 |
| 1968 | 0 | 950,000 | 25,000 | (not counted) | (not counted) | 0 |
| 1969 | 0 | 1,110,000 | 45,000 | (not counted) | (not counted) | 0 |
| 1970 | 0 | 1,140,000 | 66,000 | 188 | (not counted) | 0 |
| 1971 | 0 | 1,130,000 | 53,000 | 302 | (not counted) | 0 |
| 1972 | 0 | 390,000 | 26,000 | 188 | (not counted) | 0 |
| 1973 | 0 | 350,000 | 25,000 | 302 | (not counted) | 0 |
| 1974 | 1 | 950,000 | 53,000 | 504 | (not counted) | 0 |
| 1975 | 3 | 850,000 | 110,000 | 1,600 | 23,000 | 0 |
| 1976 | 2 | 940,000 | 350,000 | 4,700 | 32,000 | 0 |
| 1977 | 7 | 360,000 | 200,000 | 33,000 | 52,000 | 0 |
| 1978 | 90 | 560,000 | 140,000 | 38,000 | 43,000 | 0 |
| 1979 | 58 | 560,000 | 260,000 | 40,000 | 31,000 | 0 |
| 1980 | 175 | 690,000 | 380,000 | 200,000 | 34,000 | 0 |
| 1981 | 529 | 910,000 | 380,000 | 420,000 | 53,000 | 0 |
| 1982 | 90 | 940,000 | 290,000 | 590,000 | 26,000 | 0 |
| 1983 | 39 | 1,570,000 | 530,000 | 450,000 | 29,000 | 0 |
| 1984 | 92 | 1,230,000 | 500,000 | 480,000 | 22,000 | 0 |
| 1985 | 310 | 730,000 | 480,000 | 630,000 | 40,000 | 0 |
| 1986 | 318 | 750,000 | 350,000 | 520,000 | 20,000 | 27 |
| 1987 | 353 | 590,000 | 270,000 | 360,000 | 23,000 | 94 |
| 1988 | 95 | 650,000 | 290,000 | 340,000 | 16,000 | 95 |
| 1989 | 109 | 980,000 | 350,000 | 290,000 | 15,000 | 294 |
| 1990 | 263 | 820,000 | 360,000 | 390,000 | 22,000 | 927 |
| 1991 | 203 | 1,200,000 | 520,000 | 410,000 | 41,000 | 486 |
| 1992 | 490 | 1,630,000 | 720,000 | 310,000 | 28,000 | 1,100 |
| 1993 | 198 | 750,000 | 340,000 | 100,000 | 23,000 | 326 |
| 1994 | 326 | 330,000 | 170,000 | 32,000 | 30,000 | 165 |
| 1995 | 188 | 300,000 | 190,000 | 110,000 | 19,000 | 2,100 |
| 1996 | 260 | 670,000 | 280,000 | 55,000 | 45,000 | 1,100 |
| 1997 | 199 | 660,000 | 300,000 | 64,000 | 32,000 | 2,100 |
| 1998 | 300 | 640,000 | 320,000 | 12,000 | 100,000 | 1,000 |
| 1999 | 154 | 480,000 | 190,000 | 2,700 | 21,000 | 35,000 |
| 2000 | 77 | 428,000 | 225,000 | 11,000 | 21,000 | 38,000 |
| 2001 | 40 | 740,000 | 270,000 | 11,000 | 49,000 | 5,000 |
| 2002 | 44 | 687,000 | 370,000 | 1,900 | 73,000 | 3,000 |
| 2003 | 43 | 527,000 | 280,000 | 1,300 | 53,000 | 800 |
| 2004 | 69 | 351,000 | 192,000 | 151 | 59,000 | 279 |
| 2005 | 186 | N/A * | 116,511 | 534 | 28,134 | 126 |
| 2006 | 214 | N/A * | 155,000 | 21 | 18,000 | 134 |
| 2007 | 141 | N/A * | 158,807 | 75 | 39,933 | 73 |
*Shad River Return Estimates are not provided because physical changes made at the Holyoke fishlift in 2005 have altered the predictive model previously used to make this estimate. As a result, a reliable estimate can not be provided until further studies are undertaken to test the current efficiency of the fishway.
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