2017 salmon imprinting starts with 30,216 eyed salmon eggs!

Salmon, Matt, Priya, and Bonnie; Jan 5, 2017

A CWCAP crew of Rick, David, Matt, Priya, and Bonnie brought back 30,216 eyed salmon eggs from Grovers Creek Salmon Hatchery. Eggs are being distributed on trays that will be placed into Egg incubators; Jan 5, 2017

Every Spring CWCAP receives salmon eggs and salmon fry from the Suquamish Tribe’s Grovers Creek Salmon Hatchery.

The Les Malmgren Imprint Pond has two types of tanks, one type is for incubating eggs and another is for imprinting salmon fry.  We now have 30,216 eyed salmon eggs in the Egg incubator/Self-release tanks.

Eyed eggs are fertilized salmon eggs that have developed to the stage where a black dot representing the eye and the early nervous system is easily visible.  At this stage, the very early gyrating movements can can also be easily seen within the egg shell.

On trays, the eggs will eventually hatch and drop through the tray mesh to the bottom of the incubator tank where they will “relax” as alevin, the stage in which they feed from their largish egg/yolk sac.

Below is a short clip by Matt Kuhar, long time CWCAP member, taken on Jan 10, ’17 —just 5 days after the photo above!

Below is another short clip by Matt Kuhar, taken on Jan 15, ’17 —just 10 days after the photo above!

At some time in about 70-90 days after fertilization, the fish will have consumed all of their egg/yolk sac, rise in the water column, and prepare to search for food.  As they fuse the seam where the egg/yolk sac was (termed buttoning up), they will eventually rise to the top of the tank and be caught in the water current exiting the self-release pipe where they will be shunted directly into Venema Creek.

Chum-salmon_hatchery-life-stage_labeledCWCAP Imprint Stewards don’t need to feed this batch of fish since they will have spent their time at the Imprint Pond feeding off their egg/yolk sacs before self-releasing into the creek.  These fish will spend from a few days to a week or so moving from Venema to Piper’s Creek where an optimum tide will help them move to the eel grass off of Carkeek Beach.

Next: CWCAP will receive 35,000 salmon fry towards the end of January.  Those approximately 1 to 1.5 inch fish will be placed in the 900 gallon Imprint Pond where they will be fed and imprinted 3 times per day for at least a month.  This is when we’ll place Salmon Feeding signs out so park visitors can visit, learn about the salmon life cycle, and of course help feed the fish!

Bill Hagen, Salmon Programs, 1937-2016

I met Bill when he reached out for volunteer help back in 2014. Always welcoming, friendly and hard-working. A man with great example for others: humble, unselfish and dedicated.

Adan Martinez, UW Student Volunteer, UW Fishery Graduate

It isn’t possible to walk the trails at Carkeek and not watch for Bill there. For his persistent friendliness to everyone, my son and self included, I am grateful. Very sorry news indeed.

Andrea Frank, Carkeek Park Salmon Steward

I am very sorry to hear about the loss of Bill. I didn’t know him for very long. He was, however, a great help to the salmon program and a pleasure to be around when working with him

Ashley Orr, Green River College Student Volunteer

Bill, you will be missed. I have never worked with a kinder, more dedicated person in my life. You have been a blessing to Carkeek Park, the salmon and the Salish Sea. We will lift a glass in your honor tonight.

David Koon, President, Carkeek Park Advisory Council

Oh Bill… You had a look at the hydraulics at the Imprint Pond and said, “wait, let’s try this instead.” And we did. Good call Bill…

Rick Henry, Acting Director, Carkeek Watershed Community Action Project

Bill Hagen -original salmon egg incubator; January 26, 2013
Bill Hagen standing next to the original 5 gallon Salmon Egg Incubator/Self-Release Tank that he installed; Photo: January 26, 2013 by Dale Calkin

If not for Bill’s more than 12 years of volunteer work in ensuring that salmon return to spawn every year in Carkeek Park, countless community members and youth would not have had first-hand, hands-on knowledge of salmon life cycles, stream restoration, storm water runoff, or their importance to watershed health. Bill has built lasting relationships across every agency and organization that has a role to play in the direction Carkeek Park takes, including Seattle Parks, SPU, Fish & Wildlife, UW, KC Metro, Carkeek Park Advisory Council, Carkeek Watershed Community Action Project, and Salmon Education Alliance – just to name a few. Perhaps the closest and most fortunate relationship Bill has nurtured over these many years is with the Suquamish Tribe and their generous staff at Grovers Creek Salmon Hatchery who without their years of salmon donations and expertise, Carkeek Park would not have salmon in its creeks.

Bill Hagen modifies the intake pipe; 2009
All of the water that flows through the Imprint Pond System enters through this essential, screened Intake Pipe. Bill Hagen modifies the pipe during its original installation in the Fall of 2009.

Bill began his volunteer work in Carkeek Park before local agencies clarified their restoration efforts in Carkeek Park. He utilizes his natural and professional engineering experience to guide the efforts to bring back meanders, pools, natural debris, and essential wetlands in ways that have established a returning, spawning population of Chum salmon to Carkeek Park. Through an exciting volunteer program that he began, visitors, parents, children, students, educators, and hundreds of volunteers have participated in the release of 70-100,000 salmon fry each Spring in Carkeek Park bringing 1,893 visitors to the Imprint Pond in 2015 and more than 2300 in 2016. Salmon fry return in 3-5 years as adults to spawn and to excite and inspire many more hundreds of park visitors and school students as they learn about the salmon life cycle and just as importantly, what they can do to ensure the future health and safety of the salmon and their own local communities.

Bill’s volunteer work includes the design, upgrades, and maintenance of the Imprint Pond System used to provide constant creek water during the crucial imprinting period. This gravitational flow system uses no motors or electricity. Without this innovative system, the adult salmon would not return to Carkeek Park. He coordinates the annual Salmon Spawning Survey that allows volunteers to collected essential data around the spawning success of returning adult salmon that is invaluable to urban creek management plans supported by Fish & Wildlife and SPU. In short, Bill’s volunteer efforts over more than a dozen years have created sustainable and scale-able opportunities for a very large community of volunteers who help feed and maintain salmon fry and the Imprint Pond System. Volunteers include UW Fishery students developing capstone projects, home school associations seeking science activities, retired locals, and enthusiastic adults who contribute to these meaningful programs.

Living on Earth interview: Week of March 2, 2012; Bill discusses Salmon Programs and education at Viewlands Elementary School with KUOW’s Ashley Ahearn.

Essay submitted by Rick Henry on May 5, 2016 as part of the 2016 Cox Conserves Heroes Award nomination process.