A plan to begin applying the fish-killing pesticide rotenone to sections of the Miramichi watershed has been delayed by at least one day, the Atlantic Salmon Federation says. Earlier this year, the Department of Fisheries and Oceans gave the green light to eradicate smallmouth bass, an invasive species, by spraying sections of the Miramichi watershed beginning on Tuesday. The Atlantic Salmon Federation and the North Shore Micmac District Council have been pushing for the project to protect salmon for several years now, and originally hoped it would go ahead last summer. The federation has said smallmouth bass threaten salmon and trout by taking over their food and habitat.