Scudley Do Right
Legend
Does anyone know exactly how WDFW comes up with the sublegal encounter numbers? Is it 100% the test fishing numbers applied to all boats through areal survey?
Puget Sound
- Thread starter Stonedfish
- Start date
Hopefully someone chimes in that knows.
I’ve always wondered when are the test boats fishing. Say in MA 9, are they only fishing Thurs-Saturday or seven days a week? If fishing seven days a week, how are they using those stats to figure encounters because four days a week there would have been no recreational encounters.
SF
Puget Sound Chinook Mark-Selective Fishery Sampling Methods
The Puget Sound Sampling Unit uses three different sampling designs to intensively monitor mark-selective Chinook fisheries (MSFs) in Puget Sound
wdfw.wa.gov
Nice work Lou.
A fun place to fish, but unfortunately gets very crowded and will only get worse.
Did you make any new friends?
SF
2-2 on keeper sized fish during a short session before work this morning. Well, 2 for 2…ish. One popped off while I was dicking around with it in the shallows versus beaching while trying to spot a fin.
The one kept.
Beautiful sunrise. Fog rolled in shortly thereafter.
The one kept.
Beautiful sunrise. Fog rolled in shortly thereafter.
I had to tell this guy standing next to my right wasn't going to be safe, he moved to the left so that works out.Nice work Lou.
A fun place to fish, but unfortunately gets very crowded and will only get worse.
Did you make any new friends?
SF
Moments later this old guy moved into my right again, I told him the same thing but he didn't understand English and I don't speak Korean. It was overhead casting for a while, oldman was fearless with the fly zipping by so close LOL
Once is enough at that beach
That's live scan Brian.
Puget Sound Chinook Mark-Selective Fishery Sampling Methods
The Puget Sound Sampling Unit uses three different sampling designs to intensively monitor mark-selective Chinook fisheries (MSFs) in Puget Sound
Curt,
Do you know if the data from the tribal test fishery boats is used by WDFW to determine encounters and catch rates by recreational anglers?
Thanks
SF
SeaRunner
Steelhead
Puget Sound Chinook Mark-Selective Fishery Sampling Methods
The Puget Sound Sampling Unit uses three different sampling designs to intensively monitor mark-selective Chinook fisheries (MSFs) in Puget Sound
Smalma;
Thank you for posting that. I have read it before and encourage all to read it, particularly the simplified sample on page 3. IMO it does a good job of explaining the process.
One thing that I haven't seen, or perhaps overlooked, is how "unknown" salmon/fish; i.e. salmon/fish that are hooked but lost before a positive identification, are accounted for. Apply the same ratio of species/size/mark type for landed fish to lost fish?
For those interested in the management of mark-selective-fisheries in MA 10 both the Chinook and coho fisheries are being monitored with a full murthy sampling program.
SF -
Yes the info from the tribal test fishing boats is being used. We were told during the NOF meetings both last year and this year that the info from the State and Tribal boats is very similar and they are combining the join info which helps beef up their "stats".
Sea-Runner-
To account for the mortality of fish hooked and lost the co-managers agreed to adopt a "drop-off mortality" of 5%. For PS recreational the release mortality used for Chinook greater than 22 inches is 10% and those under 22 inches it is 20%. That 5% drop mortality is add to those valves bumping the 10% for larger fish to 15% and the 20% for sub-legals to 25%.
Curt
SF -
Yes the info from the tribal test fishing boats is being used. We were told during the NOF meetings both last year and this year that the info from the State and Tribal boats is very similar and they are combining the join info which helps beef up their "stats".
Sea-Runner-
To account for the mortality of fish hooked and lost the co-managers agreed to adopt a "drop-off mortality" of 5%. For PS recreational the release mortality used for Chinook greater than 22 inches is 10% and those under 22 inches it is 20%. That 5% drop mortality is add to those valves bumping the 10% for larger fish to 15% and the 20% for sub-legals to 25%.
Curt
So another question. A lot of chatter out there regarding MA 10 and what might possibly happen moving forward due to the chinook numbers.
When it says tagged on the fish below, are they all clipped and 50K got wire tags or are only 50k clipped?
Thanks
SF
When it says tagged on the fish below, are they all clipped and 50K got wire tags or are only 50k clipped?
Thanks
SF
SeaRunner
Steelhead
Thank you. My prior post was not clear, but I was not referring to mortality estimates. I was getting at how lost fish are accounted (or if they are accounted?) for in encounter estimates. In my mind the two are separate, but related, concepts.
SeaRunner -
It was my post that was not clear. That 5% add on mortality is to account for the fish hooked and lost. While I don't know whether there is a good escapement of the number hooked and lost the co-managers agreed that adding that 5% would account for that potential mortality.
Curt
It was my post that was not clear. That 5% add on mortality is to account for the fish hooked and lost. While I don't know whether there is a good escapement of the number hooked and lost the co-managers agreed that adding that 5% would account for that potential mortality.
Curt
SF -
What the 2023 Future Brood document for the Elliot Bay net pens shows (same as 2021 and 2022) is 950,000 to be released that are unmarked (UM) and 50,000 will receive code wire tags (CWT) but not the adipose clipped (also UM0).
Compare the same releases for the 2020 and earlier years. For 2020 it shows that the plan release was 395,000 receiving an AD mark and none being tagged (CWT).
Curt
What the 2023 Future Brood document for the Elliot Bay net pens shows (same as 2021 and 2022) is 950,000 to be released that are unmarked (UM) and 50,000 will receive code wire tags (CWT) but not the adipose clipped (also UM0).
Compare the same releases for the 2020 and earlier years. For 2020 it shows that the plan release was 395,000 receiving an AD mark and none being tagged (CWT).
Curt
Curt,
Thanks. I didn't noticed the unmarked (UM).
With so many hatchery fish being released unmarked, how would the state or tribes really know how many truly wild coho there are?
I thought the goal at one time was to mass mark all hatchery fish. That obviously doesn't seem to be the case any longer.
SF
