 The U.S. Bureau of Fisheries (BOF) renamed the vessel USFS "Curlew", and, after modifying her for fisheries duty, assigned her to the BOF station at Cape Vincent, New York, for use in fish-culture work on Lake Ontario.During the summer of 1922, the Cape Vincent station installed electric lighting aboard "Curlew" and attached metal plates to the forward part of her hull at the waterline to protect her planking.On 24 September 1923, "Curlew" rescued 58 passengers from the Canadian steamboat "Waubic", which had run aground in fog at Bear Point about from Cape Vincent while making her daily run between Cape Vincent and Kingston, Ontario, Canada.