A guideline to restore anadromous fish runs in selected tributaries of the NY/NJ harbor watershed
The obstacles to the spawning success of anadromous fish which were documented in a preceding report, "Impediments to the Spawning Success of Anadromous Fish in Tributaries of the NY/NJ Harbor Watershed" [American Littoral Society, September 1992], have been reviewed. The tributaries most conducive to supporting anadromous fish spawning have been selected on the basis of examining the parameters which affect spawning success, including seasonal temperature, salinity, pH, dissolved oxygen, presence of pollution and debris, bottom consistency, and the current support or history of supporting a run. This supplementary management guideline gives outlined plans to restore anadromous spawning runs to nine Harbor tributaries.
On each of the nine tributaries selected for anadromous run restoration, the main factor which adversely affects anadromous spawning has been identified as the problem to be resolved, and the most effective solution and method needed to restore a run has been matched. The agenda needed to ensure run restoration differs for each tributary system, due to the variation in conditions. For each system, a series of necessary steps lead up to an ultimate goal, resulting in the restoration of an anadromous fish spawning run.
Tributaries physically blocked by dam impediments require bypass' this can best be achieved through the installation, maintenance, and operation of a fish bypass structure. Bypass through the use of a fish ladder is recommended for the large structural impediments known as Swimming River/Monmouth Reservoir Dam, Shadow Lake Dam, Dundee Dam, and Oradell Reservoir dam. Bypass using a small fish bypass structure is suggested for the smaller impediments know as Richmond Creek Dam and Wolfe's Pond Dam.
On other waterways, such as the Second River and Saddle River tributaries and the section of the Hackensack River which is located in the Hackensack Meadowlands, unique programs have been created to optimize the present of future habitat to support anadromous fish spawning.
The purpose of this report is to unite the agencies, dam owners, and other important parties, to become cooperatively involved in anadromous fish run restoration. The exact steps needed have been created and are included in this report to hasten the process.