Title: Yukon fish and effects of causeways
Description: The extensive exploratory drilling activities in the nearshore waters of the Canadian Beaufort Sea and in the Mackenzie Delta region have resulted in a variety of proposed developments for shore-based facilities, usually incorporating a solid-fill causeway in conjunction with either dredged channels or solid-fill breakwaters. There is currently insufficient biological and physical data from the Yukon coast to allow for a determination of the potential impacts of these structures on fish populations, although massive studies were done on 2 causeways in the Prudhoe Bay-Sagavanirktok Delta region of Alaska. This report summarizes the Alaskan information; assesses the likelihood that coastal structures along the Yukon would affect the anadromous fish populations using the area; and evaluate...