River Herring and American Shad

N.H. Fish and Game's Marine Fisheries Division monitors the annual spring spawning runs of anadromous fish, such as river herring (alewives and blueback herring) and American shad, in six coastal and estuarine river systems along the coast of New Hampshire, with the goal of restoring runs to historic levels. Anadromous fish migrate between the ocean and freshwater during various life stages.

Spawning Run Updates

Each year the Fish and Game staff opens the Department’s seven fish ladders at the beginning of April to monitor anadromous fish spawning runs in New Hampshire’s coastal rivers. The following table provides preliminary information on the numbers of river herring, American shad, and sea lamprey tallied through the Department’s head-of-tide fish ladders.

2013 weekly and final totals of river herring, American shad, and sea lamprey’s spawning migration through NH Fish and Game Department-owned fish ladders into freshwater reaches of NH coastal watersheds:

Fish Ladder Totals (April 15 to April 30, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 2 5650
2013 Exeter River 0 106 80
2013 Oyster River 0 5 97
2013 Lamprey River 0 0 20910
2013 Taylor River 0 0 0
2013 Pickpocket 0 0 0
2013 Wiswall Ladder 0 0 279
Fish Ladder Totals (May 1to May 6, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 55 11,290
2013 Exeter River 0 203 103
2013 Oyster River 0 17 323
2013 Lamprey River 0 1 60,447
2013 Taylor River 0 0 0
2013 Winnicut River 0 0 0
2013 Pickpocket 0 0 0
2013 Wiswall Ladder 0 0 6,608
Fish Ladder Totals (May 7to May 13, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 132 16,016
2013 Exeter River 0 557 459
2013 Oyster River 0 44 1,525
2013 Lamprey River 0 43 76,443
2013 Taylor River 0 0 36
2013 Winnicut River 0 0 0
2013 Pickpocket 0 0 0
2013 Wiswall Ladder 0 0 13,905
Fish Ladder Totals (May 14 to May 20, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 274 17,487
2013 Exeter River 0 872 578
2013 Oyster River 0 48 1,778
2013 Lamprey River 0 45 78,304
2013 Taylor River 0 0 49
2013 Winnicut River 0 0 0
2013 Pickpocket (2nd dam on Exeter R.) 0 0 0
2013 Wiswall Ladder (2nd dam on Lamprey R.) 0 0 14,399
Fish Ladder Totals (May 21 to May 28, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 411 18,146
2013 Exeter River 0 1034 587
2013 Oyster River 0 48 3,287
2013 Lamprey River 0 73 78,756
2013 Taylor River 0 0 109
2013 Winnicut River 0 0 0
2013 Pickpocket (2nd dam on Exeter R.) 0 0 0
2013 Wiswall Ladder (2nd dam on Lamprey R.) 0 0 17,098
Fish Ladder Totals (May 29 to June 3, 2013)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 487 18,286
2013 Exeter River 0 1154 588
2013 Oyster River 0 48 7,013
2013 Lamprey River 0 111 79,406
2013 Taylor River 0 0 109
2013 Winnicut River 0 0 0
2013 Pickpocket (2nd dam on Exeter R.) 0 0 0
2013 Wiswall Ladder (2nd dam on Lamprey R.) 0 0 17,327
Fish Ladder Totals (End of Season Preliminary Estimates)
Year River Shad Lamprey River Herring
2013 Cocheco River 0 552 18,337
2013 Exeter River 0 1154 588
2013 Oyster River 0 48 7,149
2013 Lamprey River 0 114 79,408
2013 Taylor River 0 0 1,718
2013 Winnicut River 0 0 0
2013 Pickpocket (2nd dam on Exeter R.) 0 0 0
2013 Wiswall Ladder (2nd dam on Lamprey R.) 0 0 17,502

 


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