Author Topic: Setting up for salmon eggs  (Read 7571 times)

Offline archer

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Setting up for salmon eggs
« on: January 22, 2018, 09:07:31 AM »
 The local game and anglers club works with the local salmon hatchery to get salmon eggs to distribute through the local streams/etc in our area.
I have setup 2 salmon hatching buckets in the creek that runs through my property. On Tuesday, I'll get 5000+ coho salmon eggs. Looks like it will take 2 weeks for the salmon to hatch and get large enough to swim away.

I'll post pics shortly.

Some info on coho salmon spawning from wiki:
The eggs hatch in the late winter or early spring after six to seven weeks in the redd. Once hatched, they remain mostly immobile in the redd during the alevin life stage, which lasts for 6–7 weeks. Alevin no longer have the protective egg shell, or chorion, and rely on their yolk sacs for nourishment during growth. The alevin life stage is very sensitive to aquatic and sedimental contaminants. When the yolk sac is completely resorbed, the alevin leaves the redd. Young coho spend one to two years in their freshwater natal streams, often spending the first winter in off-channel sloughs, before transforming to the smolt stage. Smolts are generally 100–150 mm (3.9–5.9 in) and as their parr marks fade and the adult's characteristic silver scales start to dominate. Smolts migrate to the ocean from late March through July. Some fish leave fresh water in the spring, spend summer in brackish estuarine ponds, and then return to fresh water in the fall. Coho salmon live in salt water for one to three years before returning to spawn. Some precocious males, known as "jacks", return as two-year-old spawners. Spawning males develop kypes, which are strongly hooked snouts and large teeth.

Offline archer

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Re: Setting up for salmon eggs
« Reply #1 on: January 22, 2018, 05:05:27 PM »
A bucket:


The 2 buckets in the creek:

Offline Cedar

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Re: Setting up for salmon eggs
« Reply #2 on: January 22, 2018, 06:49:16 PM »
This is so.cool Archer

Cedar

Offline archer

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Re: Setting up for salmon eggs
« Reply #3 on: January 22, 2018, 08:10:01 PM »
thx. it is...

Offline Cedar

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Re: Setting up for salmon eggs
« Reply #4 on: January 22, 2018, 08:20:17 PM »
I have only seen it in aquariums, not in an actual stream. I will be happy to watch your project and see the difference.

Cedar

Offline fritz_monroe

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Re: Setting up for salmon eggs
« Reply #5 on: January 23, 2018, 05:17:21 AM »
Very cool project.  I'll be watching for updates.

I've always heard that salmon return to the stream where they hatched.  Do you currently have any salmon in your creek now?  Do you know if they will come all the way back to your property?

Offline archer

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Re: Setting up for salmon eggs
« Reply #6 on: January 23, 2018, 08:26:10 AM »
Very cool project.  I'll be watching for updates.

I've always heard that salmon return to the stream where they hatched.  Do you currently have any salmon in your creek now?  Do you know if they will come all the way back to your property?

neighbours said there were salmon in my stream before the downhill neighbour messed up the creek by illegally moving it.
the salmon that survive should return in 1 to 3 years to spawn

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Re: Setting up for salmon eggs
« Reply #7 on: January 23, 2018, 01:54:05 PM »
The eggs are in the buckets!

Offline Cedar

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Re: Setting up for salmon eggs
« Reply #8 on: January 23, 2018, 02:11:21 PM »
What is the egg count?

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Offline archer

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Re: Setting up for salmon eggs
« Reply #9 on: January 23, 2018, 03:03:54 PM »
What is the egg count?

Cedar

the hatchery put about 6000 eggs in each sack, so 6000 eggs in each bucket since i have 2 buckets.

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Re: Setting up for salmon eggs
« Reply #10 on: January 23, 2018, 03:09:56 PM »
When I was helping harvest eggs and fertilizing (and pressurizing) them.... Then releasing fry into a lake via a tanker truck, the man I was helping said 10% would grow to catchable size... How many could return to your Creek?

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Re: Setting up for salmon eggs
« Reply #11 on: January 23, 2018, 03:54:36 PM »
When I was helping harvest eggs and fertilizing (and pressurizing) them.... Then releasing fry into a lake via a tanker truck, the man I was helping said 10% would grow to catchable size... How many could return to your Creek?

Cedar

10% could mean that 1200 salmon come back to the creek in a few years.

Offline Mr. Bill

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Re: Setting up for salmon eggs
« Reply #12 on: January 23, 2018, 04:04:31 PM »
the hatchery put about 6000 eggs in each sack, so 6000 eggs in each bucket since i have 2 buckets.

"About"?  You didn't count them?

Offline Cedar

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Re: Setting up for salmon eggs
« Reply #13 on: January 23, 2018, 04:21:43 PM »
I didn't know if salmon had the same survival rate as rainbow trout.

Cedar

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Re: Setting up for salmon eggs
« Reply #14 on: January 23, 2018, 04:44:44 PM »
"About"?  You didn't count them?

it started to rain.... i did not want to ruin my hairdo..

Offline redrider

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Re: Setting up for salmon eggs
« Reply #15 on: January 24, 2018, 11:53:09 AM »
This is exciting!

So... about the first week of February?

rr

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Re: Setting up for salmon eggs
« Reply #16 on: January 24, 2018, 02:21:48 PM »
had to move the buckets to the side of the stream, we received 1" of rain last night and the stream has more water moving thru it.

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Re: Setting up for salmon eggs
« Reply #17 on: January 25, 2018, 09:00:46 AM »
Well, i am going to look at a different way to do this next year. The water flow in the stream changes and the pipes get cut off.. I just had to go move them again.
I'll look at some type of pump or something to get the water into some container on the bank. Maybe a ramp pump. Or electric pump.

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Re: Setting up for salmon eggs
« Reply #18 on: January 25, 2018, 12:26:14 PM »
What about a diversion pipe like for water power?

Cedar

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Re: Setting up for salmon eggs
« Reply #19 on: January 25, 2018, 03:39:36 PM »
What about a diversion pipe like for water power?

Cedar

an idea.. hmm... with the rain coming more, i'm going to be out playing in the creek a lot for the next two weeks

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Re: Setting up for salmon eggs
« Reply #20 on: January 25, 2018, 03:44:14 PM »
So, for those interested, here is how they know when to hatch:

Eggs require 725 Temperature units (TU) to hatch.
1 TU = 1 deg F over 32F per day
So with the water temp of 39F in the bucket for a day, that is 7 TU/day.

The hatchery said they were at 603 TUs when they gave them to me. My creek today was 46F, so it should take 6-7 days to get to 725 TUs.
The hatchlings leave the bucket when they get to 1300TU and the yolk sac is dissolved on their chin and the water temp is above 45.

Offline redrider

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Re: Setting up for salmon eggs
« Reply #21 on: January 26, 2018, 07:14:05 AM »
So cool!

Thanks for keeping us posted.

Eagerly awaiting the next developments.

rr

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Re: Setting up for salmon eggs
« Reply #22 on: January 26, 2018, 08:58:58 AM »
grumble, one of the buckets has low flow through, bet there is a piece of debris in the pipe. time to get cold and wet at lunch clearing it out.

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Re: Setting up for salmon eggs
« Reply #23 on: January 26, 2018, 09:20:19 PM »
Look at Goodwill for wetsuits. Just got one for SP for $7, and it looks brand new. That and a pair of hip waders sound good.

Cedar

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Re: Setting up for salmon eggs
« Reply #24 on: January 27, 2018, 07:03:58 AM »
hmm, good idea..

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Re: Setting up for salmon eggs
« Reply #25 on: January 28, 2018, 05:40:13 PM »
So, on day 5, total TU's so far is 672. The eggs need 725 TU's to hatch. Water temp has been around 46, so if the water temperature stays the same, they should hatch around day 9, Feb 1st.

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Re: Setting up for salmon eggs
« Reply #26 on: January 29, 2018, 08:37:16 AM »
That's earlier than you initially thought, isn't it?

I keep visualizing the eggs with a big clock in there that counts TU's. ::)

rr

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Re: Setting up for salmon eggs
« Reply #27 on: January 29, 2018, 10:19:34 AM »
i was told 1 to 2 weeks to hatch, so it's in sync with that.

Now I'll just be doing better if the creek would be consistent. The on/off rain we are getting is changing the creek which adjusts the flow. this am the output pipes were just trickling but the buckets were full (at least the eggs did not dry out). The creek went down a little from yesterday so the flow into the pipes were reduced. I'm considering getting a small HF pump to pump the water into the buckets...

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Re: Setting up for salmon eggs
« Reply #28 on: January 30, 2018, 01:33:38 PM »
Day 7. 702 TUs logged, and I just saw the 1st salmon fry hatching.

I was worried because of the amount of silt getting into the buckets due to the rain.

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Re: Setting up for salmon eggs
« Reply #29 on: January 30, 2018, 01:56:38 PM »
Congrats fish papa.

Cedar