NANWALEK SALMON
ENHANCEMENT

Monitoring of the English Bay Lakes system goes back into the 1920s with federal management and, after statehood, Alaska Department of Fish and Game.

Nanwalek operated a sockeye enhancement program in the English Bay River that produced nearly three hundred thousand adults to attempt to reestablish a commercial fishery and provide cost recovery. 

Unanticipated disease problems during the lake-pen smolt-rearing portion of the enhancement project had reduced production and the Alaska Department of Fish and Game became concerned that the disease problem may have an adverse impact on the other fish in the English Bay River system. Alaska Department of Fish and Game later ordered the project to develop a disease-free water source for rearing smolts, and unless a disease-free water source could be developed, the project would have to be shut down.

Sockeye Enhancement Program established by the Tribe. Nanwalek residents were concerned about red salmon returns and worked with CRRC to secure funding to install a weir, count fish, and conduct egg takes.

CRRC became integrally involved in the Nanwalek Salmon Enhancement Program and started writing grants to help fund the weir and other objectives of the Nanwalek Salmon Enhancement Program.

Fisheries technicians were taking eggs from the English Bay Lakes to Port Graham Hatchery, where they were raising them to a fingerling size, and then transporting them to English Bay Lakes (Nanwalek). Nanwalek fisheries technicians kept them in net pens all summer long to be released in the fall. This worked for a period of time, but eventually red salmon developed infectious haematopoietic necrosis (IHN) and had to be destroyed.

Red salmon developed IHN again. Fish and Game didn’t want Nanwalek to use a pen system where the salmon were all congregating in one area of the lake.

Nanwalek’s Sockeye Return Improvement Project proposal was submitted to the Administration for Native Americans on October 8. As part of the grant, the Port Graham Hatchery was to increase the egg to emergent fry survival rate from 45 percent to at least the industry standard of 70 percent. Vincent Kvasnikoff, First Chief for the Nanwalek IRA Council at the time, supported the project by committing biological technical assistance for project personnel and a liaison with the Alaska Department of Fish and Game as the project progressed as well as an in-kind contribution to the project. 

The Nanwalek Salmon Enhancement project coordinator and the project supervisor at the Alaska Department of Fish and Game pathology lab in Anchorage attended the Alaska Hatchery Managers meeting in Girdwood, Alaska, as well as a Fish Pathology workshop in March.

CRRC initiated the English Bay River Habitat Restoration Project, working directly with the Nanwalek IRA Council to address important salmon habitat restoration issues for the English Bay River system. The goals included evaluating and providing a damage assessment for the purpose of rehabilitating the English Bay River drainage habitat including English Bay Second Lake, English Bay River, and English Bay River lagoon. The project was to specifically address problems resulting from habitat damage and degradation due to human impacts, primarily transportation related. This project was not funded.

Cook Inlet Aquaculture Association purchased the Port Graham Hatchery in 2014 and put it back into operation. This is a pink salmon facility with the capacity to rear 84 million eggs based on current water availability. Fish are reared in the facility until they reach the fry stage, and then they are temporarily reared in net pens in front of the hatchery. On average, the time in the net pens is two months before they are released to the open ocean. The following year, we would expect to see about two million adult pink salmon return. 

CIAA joined the Nanwalek Salmon Enhancement Program and provided technical support and training in the enumeration efforts, conducting limnology sampling, and analyzing the historic data. CIAA had expressed interest in using the Nanwalek brood stock at Port Chatham. Because of genetic concerns, only “wild” fish can be stocked into Nanwalek as smolts, and enhanced fish can be used for Port Chatham and other Lower Cook Inlet programs. This proposal seemed to be well received by the Nanwalek representatives, especially since it involved only around five hundred broodfish.

Citizens of Nanwalek began expressing concerns about the perceived diminishing adult returns and the need to provide more fish for the expanding population of Nanwalek. This concern triggered CRRC to sponsor a monitoring program and instigate a planning process to develop a long-term sustainable program to address these concerns. now centers on CRRC funding a smolt and adult count and transportation for limnology.

The Nanwalek IRA Council initiated discussions with the Alaska Pacific University FAST Lab regarding their concern about the decline of sockeye in the English Bay Lakes system. APU conducted water and environmental DNA (eDNA) sampling in various locations around the river and lake system of Nanwalek. 

Cook Inlet Aquaculture Association traveled to Second and Third Lakes for the purpose of collecting limnological samples as a result of a meeting they had in 2016 with members of the Nanwalek IRA Council, who were concerned about the health of the sockeye salmon population in those lakes. 

CRRC received funding from the National Fish and Wildlife Foundation to support the Nanwalek Salmon Enhancement Program by purchasing a new resistance board weir at the request of the Nanwalek IRA Council.

CRRC continued the Habitat Restoration Project with support and guidance from the U.S. Fish and Wildlife Service to remove derelict weir and net pen material from English Bay Lakes and River.