clamchucker
03-05-2010, 06:14 PM
One of my grandchildren was doing a school project and sent me this link. I found it interesting and thought to pass it on to you folks.
Raising Salmon in an RSI
Volunteer Salmon Egg / Fry Rearing. This article will try to document one man's effort to help mother nature. His name is Errol Anderson. He is running a Remote Site Incubator (RSI) & has been securing eyed Coho salmon eggs from the Washington State Salmon hatchery at Bingham Creek off the Satsop River in Western Washington since 1983. The year 2009 saw a change & the eggs being supplied by the Washington State Salmon hatchery on the Skookumchuck River. These are both tributaries of the Chehalis River.
He took over the project that was being ended by another person, & transferred the location to his area. The first 4 years he took 50,000 eggs each year. After that, he increased the number of RSI boxes to 3 & the quantity was upped to 100,000 eggs. He is still operating the 3 the sites on the same creek, plus adding another to a small tributary, but has replaced the original & replacement plywood boxes as they deteriorated. In the late summer of 2006 he replaced 2 of the plywood boxes with plastic 300 gallon cattle watering tanks. In the fall of 2007 he added another plastic tank site in a small side creek.
Now that he is retired, he a neighbor & a cousin watch over each of his egg boxes daily (sometimes 3 times a day when the water is up & muddy) during the incubation period to be sure there is no water problems when they are in the process of hatching out.
Initially when he saw that the returning salmon to the Deep Creek drainage in Lewis County were declining he wanted to see that they did not become a thing of the past. Some of this was because of beaver dams, & or low water flow in the creek at the wrong time for salmon to pass upstream. He was born & raised in this area & can remember years past when the upper reaches of this creek had many salmon spawning there around Thanksgiving time.
Over the years he has improved the the habitat, created riffles & better spawning areas & generally helped mother nature in stream restoration.
The Main Ingredient Needed : These eggs are obtained from returning Coho from the Bingham Creek salmon hatchery off the Satsop River, which is a tributary of the Chehalis River. Deep Creek is also a tributary of the Chehalis River, only a lot farther upstream. The hatchery will take an average of 2,800 eggs from each female Coho salmon. They are fertilized & left in the incubation trays until eyed up. Then they are hand sorted for dead or defective eggs. At this point Errol gets a call & transports them home to the egg boxes.
For any RSI to function the main need is to have enough of a flow of clean water from the middle of December for about 2 months to where the eggs hatch & then get large enough that they naturally move out by themselves into the smaller streams.
Incubation trays in the hatchery20,000 eyed eggs per trayInitial sorting dead eggs using salt solutionhttp://www.sschapterpsa.com/ramblings/RSI/hatchery_incubation_trays.JPGhttp://www.sschapterpsa.com/ramblings/RSI/eyed_eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/initial%20bad%20egg%20separation.JPGSorting out bad or dead eggs Determining weight of known number of eggsWeighing out 25,000 eggshttp://www.sschapterpsa.com/ramblings/RSI/sorting%20out%20bad%20eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/determining%20egg%20weight.JPGhttp://www.sschapterpsa.com/ramblings/RSI/weighing%20out%2025,000%20eggs.JPG
The eggs are usually procured by him from the hatchery about mid December, the 13th in the year 2005 & December 12th 2007. The initial process to get these eggs thru WDFW Fish Management is quite involved. It may even be near impossible for someone new to be able to start up a program like this in today's bureaucracy world.
Once the eggs are eyed up, & the phone call is made to come pick them up, the hatchery workers will transfer them from the incubation trays to tanks where running water just covers the eggs. As seen in the above 2 baskets, the front basket has been picked over & has had the dead or non-fertilized eggs removed, while the rear basket has not yet have not been picked over as evidenced by the lighter colored eggs.
Eggs going into wet burlap bagsSigning off100, 000 eggs loaded in wet burlap bagshttp://www.sschapterpsa.com/ramblings/Miscl%20images/fertilized_eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/signing_off_-2.JPGhttp://www.sschapterpsa.com/ramblings/Fishing%20images/ready_to_go.JPG
They are transferred into wet burlap bags at the hatchery in preparation to transportation. At the eyed stage, they are not as susceptible to to handling, & can be removed from the water for a short period of time, but still need to be kept wet during the transportation to the egg boxes.
Enter The RSI Egg Boxes : In use, for the RSI boxes, the intake water enters the bottom of the above blue plastic tank that is full of washed gravel about the size of SMALL chicken eggs. This acts as a collection tank & primary filter. Here in the center picture below, he is pointing to the clean-out plug, which flushes the inlet line & back flushes the collection tank also. The outlet is on the top which then goes into the bottom of the main egg box. The second PVC pipe going down, feeds water to a second box if applicable.
The intake must have screening (shown below) to keep leaves & other debris or sediment from getting in & plugging up either the intake itself, or internally inside the boxes. There has to be enough fall in the creek to allow for enough pressure to guarantee flow enough to keep the eggs covered with fresh water. Two of his intakes are only 50' long, while another is 600'.
Protected water intakeInlet settlement tankOutlet of one of the old wooden egg boxeshttp://www.sschapterpsa.com/ramblings/RSI/protected_intake.JPGhttp://www.sschapterpsa.com/ramblings/RSI/inlet_collector.JPGhttp://www.sschapterpsa.com/ramblings/RSI/outlet_of_box.JPG
Above are pictures of the actual old style wooden egg boxes. He has placed them in strategic locations where there is small streams off the main creek & yet on private property so as to avoid any chance of vandalism. A few minutes by vandals could ruin a whole year's returns. These original boxes were made from plywood, but he upgraded for the 2007 eggs with a new series being made from 8' 300 gallon oval plastic cattle watering troughs shown below.
In the center photo below his water intake line running upstream about 600' became plugged with silt, so the water into the box is now being pumped in by a electric sump pump shown hanging off a pole over the creek.
The old wooden tank systemThe new plastic tank system in the same location as the photo on the leftHere he is loading eggs in one of the new boxeshttp://www.sschapterpsa.com/ramblings/RSI/DCS_box.JPGhttp://www.sschapterpsa.com/ramblings/RSI/news%20tyle%20egg%20box.JPGhttp://www.sschapterpsa.com/ramblings/RSI/Errol%20loading%20egg%20box%201.JPG
Inside the inlet bottom of the egg box, the main inlet line splits into 4 smaller 1/2" PVC lines that have hundreds of small holes drilled to dissipate the water over the whole egg box. The egg box is then also filled with washed river rock the same as the collection tank. It is filled with these rocks so that there is about 4" of flowing water over the rocks. On the outlet end of the egg box, these 4 PVC pipes extend out with caps placed on them. Here he can unscrew the caps, & again drain out any sediment. The other large cap in the center is only used for draining the tank when the hatching season is over.
You will notice that there are plywood covers over these egg boxes. The one thing the young fish do not like is lots of sunlight. plus these covers give a added measure of protection from predators, like Racoons.
Raising Salmon in an RSI
Volunteer Salmon Egg / Fry Rearing. This article will try to document one man's effort to help mother nature. His name is Errol Anderson. He is running a Remote Site Incubator (RSI) & has been securing eyed Coho salmon eggs from the Washington State Salmon hatchery at Bingham Creek off the Satsop River in Western Washington since 1983. The year 2009 saw a change & the eggs being supplied by the Washington State Salmon hatchery on the Skookumchuck River. These are both tributaries of the Chehalis River.
He took over the project that was being ended by another person, & transferred the location to his area. The first 4 years he took 50,000 eggs each year. After that, he increased the number of RSI boxes to 3 & the quantity was upped to 100,000 eggs. He is still operating the 3 the sites on the same creek, plus adding another to a small tributary, but has replaced the original & replacement plywood boxes as they deteriorated. In the late summer of 2006 he replaced 2 of the plywood boxes with plastic 300 gallon cattle watering tanks. In the fall of 2007 he added another plastic tank site in a small side creek.
Now that he is retired, he a neighbor & a cousin watch over each of his egg boxes daily (sometimes 3 times a day when the water is up & muddy) during the incubation period to be sure there is no water problems when they are in the process of hatching out.
Initially when he saw that the returning salmon to the Deep Creek drainage in Lewis County were declining he wanted to see that they did not become a thing of the past. Some of this was because of beaver dams, & or low water flow in the creek at the wrong time for salmon to pass upstream. He was born & raised in this area & can remember years past when the upper reaches of this creek had many salmon spawning there around Thanksgiving time.
Over the years he has improved the the habitat, created riffles & better spawning areas & generally helped mother nature in stream restoration.
The Main Ingredient Needed : These eggs are obtained from returning Coho from the Bingham Creek salmon hatchery off the Satsop River, which is a tributary of the Chehalis River. Deep Creek is also a tributary of the Chehalis River, only a lot farther upstream. The hatchery will take an average of 2,800 eggs from each female Coho salmon. They are fertilized & left in the incubation trays until eyed up. Then they are hand sorted for dead or defective eggs. At this point Errol gets a call & transports them home to the egg boxes.
For any RSI to function the main need is to have enough of a flow of clean water from the middle of December for about 2 months to where the eggs hatch & then get large enough that they naturally move out by themselves into the smaller streams.
Incubation trays in the hatchery20,000 eyed eggs per trayInitial sorting dead eggs using salt solutionhttp://www.sschapterpsa.com/ramblings/RSI/hatchery_incubation_trays.JPGhttp://www.sschapterpsa.com/ramblings/RSI/eyed_eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/initial%20bad%20egg%20separation.JPGSorting out bad or dead eggs Determining weight of known number of eggsWeighing out 25,000 eggshttp://www.sschapterpsa.com/ramblings/RSI/sorting%20out%20bad%20eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/determining%20egg%20weight.JPGhttp://www.sschapterpsa.com/ramblings/RSI/weighing%20out%2025,000%20eggs.JPG
The eggs are usually procured by him from the hatchery about mid December, the 13th in the year 2005 & December 12th 2007. The initial process to get these eggs thru WDFW Fish Management is quite involved. It may even be near impossible for someone new to be able to start up a program like this in today's bureaucracy world.
Once the eggs are eyed up, & the phone call is made to come pick them up, the hatchery workers will transfer them from the incubation trays to tanks where running water just covers the eggs. As seen in the above 2 baskets, the front basket has been picked over & has had the dead or non-fertilized eggs removed, while the rear basket has not yet have not been picked over as evidenced by the lighter colored eggs.
Eggs going into wet burlap bagsSigning off100, 000 eggs loaded in wet burlap bagshttp://www.sschapterpsa.com/ramblings/Miscl%20images/fertilized_eggs.JPGhttp://www.sschapterpsa.com/ramblings/RSI/signing_off_-2.JPGhttp://www.sschapterpsa.com/ramblings/Fishing%20images/ready_to_go.JPG
They are transferred into wet burlap bags at the hatchery in preparation to transportation. At the eyed stage, they are not as susceptible to to handling, & can be removed from the water for a short period of time, but still need to be kept wet during the transportation to the egg boxes.
Enter The RSI Egg Boxes : In use, for the RSI boxes, the intake water enters the bottom of the above blue plastic tank that is full of washed gravel about the size of SMALL chicken eggs. This acts as a collection tank & primary filter. Here in the center picture below, he is pointing to the clean-out plug, which flushes the inlet line & back flushes the collection tank also. The outlet is on the top which then goes into the bottom of the main egg box. The second PVC pipe going down, feeds water to a second box if applicable.
The intake must have screening (shown below) to keep leaves & other debris or sediment from getting in & plugging up either the intake itself, or internally inside the boxes. There has to be enough fall in the creek to allow for enough pressure to guarantee flow enough to keep the eggs covered with fresh water. Two of his intakes are only 50' long, while another is 600'.
Protected water intakeInlet settlement tankOutlet of one of the old wooden egg boxeshttp://www.sschapterpsa.com/ramblings/RSI/protected_intake.JPGhttp://www.sschapterpsa.com/ramblings/RSI/inlet_collector.JPGhttp://www.sschapterpsa.com/ramblings/RSI/outlet_of_box.JPG
Above are pictures of the actual old style wooden egg boxes. He has placed them in strategic locations where there is small streams off the main creek & yet on private property so as to avoid any chance of vandalism. A few minutes by vandals could ruin a whole year's returns. These original boxes were made from plywood, but he upgraded for the 2007 eggs with a new series being made from 8' 300 gallon oval plastic cattle watering troughs shown below.
In the center photo below his water intake line running upstream about 600' became plugged with silt, so the water into the box is now being pumped in by a electric sump pump shown hanging off a pole over the creek.
The old wooden tank systemThe new plastic tank system in the same location as the photo on the leftHere he is loading eggs in one of the new boxeshttp://www.sschapterpsa.com/ramblings/RSI/DCS_box.JPGhttp://www.sschapterpsa.com/ramblings/RSI/news%20tyle%20egg%20box.JPGhttp://www.sschapterpsa.com/ramblings/RSI/Errol%20loading%20egg%20box%201.JPG
Inside the inlet bottom of the egg box, the main inlet line splits into 4 smaller 1/2" PVC lines that have hundreds of small holes drilled to dissipate the water over the whole egg box. The egg box is then also filled with washed river rock the same as the collection tank. It is filled with these rocks so that there is about 4" of flowing water over the rocks. On the outlet end of the egg box, these 4 PVC pipes extend out with caps placed on them. Here he can unscrew the caps, & again drain out any sediment. The other large cap in the center is only used for draining the tank when the hatching season is over.
You will notice that there are plywood covers over these egg boxes. The one thing the young fish do not like is lots of sunlight. plus these covers give a added measure of protection from predators, like Racoons.