The city Parks Department restocked the Bronx River with 400 live herring shipped from Connecticut on Thursday.

The small fish were shot out of a large hose connected to a truck directly into the river by Boston Road and the Bronx River Parkway. The release is part of ongoing efforts to restore the native migratory fish run into the citys largest freshwater river.

Despite the differing demographics, the herring are expected to get along with the current wildlife in the river, said a fisheries biologist with the Connecticut Department of Energy.

The restock was conducted with the Wildlife Conservation Society, the Bronx River Alliance, and the Connecticut Department of Energy and Environmental Protection. Officials expect it will take three to four years to bring the herring population back to prior levels.

While there, a Parks Department worker tried to help a duck with a bottle cap stuck to its beak, but the duck flew away before the cap could be removed.