Tough fishing at a well-known central WA lake 2022/10/27

my only browns/tigers I have caught were in the Nunnally/Merry/Lenice chain back in the day. my biggest browns I caught were on hare's ear as well.
don't recall what the tigers ate. those were fun years
 
Anyone remember when they planted triploids in the lake in Rex's report?
They ate a lot of the fry and the lake fished like crap for a few years due to the void in available age classes.
SF
 
Just an interesting tid-bit for you that like to do some data mining and analysis and try to draw some comparision conclusions. A good case study is Diamond Lake in Oregon. Alot of articles and data available. I believe it is the first and only lake in Oregon that ODWF stocks Tigers in. WDFW and Utah love their Tiger trout :).

ODFW decided to first stock Tiger Trout back in 2016 to control invasive tui chub and golden shiners. The Tigers are manadatory C&R. Over the years it has increased their numbers of Tigers and then in 2018 introduced Browns for the first time for the same reason, tui chub & golden shiners control. The Browns are also manadatory C&R. Data below from ODFW website, which is suggesting that the Rainbow catch rate is actually INCREASING after the introductions of both the Browns and the Tigers. Go figure?

My personal observation from fishing Diamond the last two years are:

- I have caught more Browns than Rainbows and Tigers combined.
- Both the Tigers and Browns have thrived - all fish I have caught are between 17 to 22 inches.
- The normal rules that are known for both Tigers & Browns (more nocturnal - big flies, streamers, ect.) seem not to apply at Diamond. I have caught them in the middle of day and on both big and small flies. Seems like when there is an insect hatch going - all three species key in on it - just not the rainbows. Wind does seem to play more of a factor. For me, all of the Tigers and Browns come out to play once the wind comes up and stirs up the water a bit.

Anyway for now seems like ODFW has a good thing going at Diamond with the recent introduction of both Tigers & Browns. I have not seen any data or suggestions if it is meeting it's objective by keeping the tui chub and golden shiners away - but it is now a fun fishery being utilized by more fly fisherman looking to hook up with an impressive Tiger Trout or Brown Trout. For me, after catching enough of the Browns, I am finding the larger Rainbows are fewer and I am kind of over the Browns and wouldn't mind catching more of larger Rainbows. But the diversity is awesome and I love the possiblity of concluding a day of fishing of catching a Rainbow, Brown, and Tiger over 20 inches can occur.

Peach



From ODFW:

Recent Diamond Lake Fish Stocking History and Angler Success
Fish Stocking Strategy

  • Diamond Lake’s fish stocking has fluctuated from a high of 346,000 fingerlings in 2009 to a low of 166,000 in 2012. The reductions were made to try to balance the lake’s fishery and ecosystem according to our Diamond Lake Management Plan.

  • 2010: algae blooms began occurring again, and ODFW creel data showed that up to a third of the fish caught were released back into the lake. A stocking model was also being used to avoid overstocking the lake.

  • 2013: it was noted the fish stocking model was not accounting for natural mortality of trout in the lake – surplus trout was over-estimated, and in late July, creel confirmed angling was poor. Since there were fewer surplus trout than expected, ODFW immediately stocked 16,000 legal-sized trout. In November, 20,000 sub-legal-sized trout were stocked.

  • 2014: ODFW began a stabilized stocking of 300,000 rainbow trout fingerlings per year.

  • 2015: ODFW added 3,500 trophy trout and 3,000 legal trout in addition to the 300,000 fingerlings.

  • 2016: in addition to the 300,000 rainbow trout fingerlings, ODFW stocked 5,000 sterile tiger trout in the six to seven-inch range, and 13,000 sterile tiger trout fingerlings. Stocking of brown and tiger trout is a management strategy to help control invasive tui chub and golden shiners.

  • 2017: stocked 20,000 sterile tiger trout in the six to seven-inch range.

  • 2018: stocked 15,000 sterile tiger trout and 10,000 sterile brown trout in the six to seven-inch range. Brown trout stocking was added to increase predation on invasive tui chub and golden shiners.

  • 2019: stocked 15,000 sterile tiger trout and 5,500 sterile brown trout in the six to seven-inch range.

  • 2020: stocked 15,000 sterile tiger trout and 21,000 sterile brown trout in the five to six-inch range.
Rainbow Trout Caught / Angler by Year
  • 2020: 2.26
  • 2019: 2.47
  • 2018:3.43
  • 2017: 2.70
  • 2016: 2.33
  • 2015: 1.18
Angler Success
 
Peach said:
Just an interesting tid-bit for you that like to do some data mining and analysis and try to draw some comparision conclusions. A good case study is Diamond Lake in Oregon. Alot of articles and data available. I believe it is the first and only lake in Oregon that ODWF stocks Tigers in. WDFW and Utah love their Tiger trout :).

ODFW decided to first stock Tiger Trout back in 2016 to control invasive tui chub and golden shiners. The Tigers are manadatory C&R. Over the years it has increased their numbers of Tigers and then in 2018 introduced Browns for the first time for the same reason, tui chub & golden shiners control. The Browns are also manadatory C&R. Data below from ODFW website, which is suggesting that the Rainbow catch rate is actually INCREASING after the introductions of both the Browns and the Tigers. Go figure?

My personal observation from fishing Diamond the last two years are:

- I have caught more Browns than Rainbows and Tigers combined.
- Both the Tigers and Browns have thrived - all fish I have caught are between 17 to 22 inches.
- The normal rules that are known for both Tigers & Browns (more nocturnal - big flies, streamers, ect.) seem not to apply at Diamond. I have caught them in the middle of day and on both big and small flies. Seems like when there is an insect hatch going - all three species key in on it - just not the rainbows. Wind does seem to play more of a factor. For me, all of the Tigers and Browns come out to play once the wind comes up and stirs up the water a bit.

Anyway for now seems like ODFW has a good thing going at Diamond with the recent introduction of both Tigers & Browns. I have not seen any data or suggestions if it is meeting it's objective by keeping the tui chub and golden shiners away - but it is now a fun fishery being utilized by more fly fisherman looking to hook up with an impressive Tiger Trout or Brown Trout. For me, after catching enough of the Browns, I am finding the larger Rainbows are fewer and I am kind of over the Browns and wouldn't mind catching more of larger Rainbows. But the diversity is awesome and I love the possiblity of concluding a day of fishing of catching a Rainbow, Brown, and Tiger over 20 inches can occur.

Peach



From ODFW:

Recent Diamond Lake Fish Stocking History and Angler Success
Fish Stocking Strategy

  • Diamond Lake’s fish stocking has fluctuated from a high of 346,000 fingerlings in 2009 to a low of 166,000 in 2012. The reductions were made to try to balance the lake’s fishery and ecosystem according to our Diamond Lake Management Plan.

  • 2010: algae blooms began occurring again, and ODFW creel data showed that up to a third of the fish caught were released back into the lake. A stocking model was also being used to avoid overstocking the lake.

  • 2013: it was noted the fish stocking model was not accounting for natural mortality of trout in the lake – surplus trout was over-estimated, and in late July, creel confirmed angling was poor. Since there were fewer surplus trout than expected, ODFW immediately stocked 16,000 legal-sized trout. In November, 20,000 sub-legal-sized trout were stocked.

  • 2014: ODFW began a stabilized stocking of 300,000 rainbow trout fingerlings per year.

  • 2015: ODFW added 3,500 trophy trout and 3,000 legal trout in addition to the 300,000 fingerlings.

  • 2016: in addition to the 300,000 rainbow trout fingerlings, ODFW stocked 5,000 sterile tiger trout in the six to seven-inch range, and 13,000 sterile tiger trout fingerlings. Stocking of brown and tiger trout is a management strategy to help control invasive tui chub and golden shiners.

  • 2017: stocked 20,000 sterile tiger trout in the six to seven-inch range.

  • 2018: stocked 15,000 sterile tiger trout and 10,000 sterile brown trout in the six to seven-inch range. Brown trout stocking was added to increase predation on invasive tui chub and golden shiners.

  • 2019: stocked 15,000 sterile tiger trout and 5,500 sterile brown trout in the six to seven-inch range.

  • 2020: stocked 15,000 sterile tiger trout and 21,000 sterile brown trout in the five to six-inch range.
Rainbow Trout Caught / Angler by Year
  • 2020: 2.26
  • 2019: 2.47
  • 2018:3.43
  • 2017: 2.70
  • 2016: 2.33
  • 2015: 1.18
Angler Success
Click to expand...
I know when I was in Utah, years back, the fish and game poisoned Strawberry Res., to start over, and then introduced Bonneville cutthroat to keep any chub from getting a hold again. These native trout were rediscovered in some desert mtn. streams and successfully reintroduced. Not really sure if it worked, But Strawberry has a good fishery now....
 
Peach said:
Just an interesting tid-bit for you that like to do some data mining and analysis and try to draw some comparision conclusions. A good case study is Diamond Lake in Oregon. Alot of articles and data available. I believe it is the first and only lake in Oregon that ODWF stocks Tigers in. WDFW and Utah love their Tiger trout :).

ODFW decided to first stock Tiger Trout back in 2016 to control invasive tui chub and golden shiners. The Tigers are manadatory C&R. Over the years it has increased their numbers of Tigers and then in 2018 introduced Browns for the first time for the same reason, tui chub & golden shiners control. The Browns are also manadatory C&R. Data below from ODFW website, which is suggesting that the Rainbow catch rate is actually INCREASING after the introductions of both the Browns and the Tigers. Go figure?

My personal observation from fishing Diamond the last two years are:

- I have caught more Browns than Rainbows and Tigers combined.
- Both the Tigers and Browns have thrived - all fish I have caught are between 17 to 22 inches.
- The normal rules that are known for both Tigers & Browns (more nocturnal - big flies, streamers, ect.) seem not to apply at Diamond. I have caught them in the middle of day and on both big and small flies. Seems like when there is an insect hatch going - all three species key in on it - just not the rainbows. Wind does seem to play more of a factor. For me, all of the Tigers and Browns come out to play once the wind comes up and stirs up the water a bit.

Anyway for now seems like ODFW has a good thing going at Diamond with the recent introduction of both Tigers & Browns. I have not seen any data or suggestions if it is meeting it's objective by keeping the tui chub and golden shiners away - but it is now a fun fishery being utilized by more fly fisherman looking to hook up with an impressive Tiger Trout or Brown Trout. For me, after catching enough of the Browns, I am finding the larger Rainbows are fewer and I am kind of over the Browns and wouldn't mind catching more of larger Rainbows. But the diversity is awesome and I love the possiblity of concluding a day of fishing of catching a Rainbow, Brown, and Tiger over 20 inches can occur.

Peach



From ODFW:

Recent Diamond Lake Fish Stocking History and Angler Success
Fish Stocking Strategy

  • Diamond Lake’s fish stocking has fluctuated from a high of 346,000 fingerlings in 2009 to a low of 166,000 in 2012. The reductions were made to try to balance the lake’s fishery and ecosystem according to our Diamond Lake Management Plan.

  • 2010: algae blooms began occurring again, and ODFW creel data showed that up to a third of the fish caught were released back into the lake. A stocking model was also being used to avoid overstocking the lake.

  • 2013: it was noted the fish stocking model was not accounting for natural mortality of trout in the lake – surplus trout was over-estimated, and in late July, creel confirmed angling was poor. Since there were fewer surplus trout than expected, ODFW immediately stocked 16,000 legal-sized trout. In November, 20,000 sub-legal-sized trout were stocked.

  • 2014: ODFW began a stabilized stocking of 300,000 rainbow trout fingerlings per year.

  • 2015: ODFW added 3,500 trophy trout and 3,000 legal trout in addition to the 300,000 fingerlings.

  • 2016: in addition to the 300,000 rainbow trout fingerlings, ODFW stocked 5,000 sterile tiger trout in the six to seven-inch range, and 13,000 sterile tiger trout fingerlings. Stocking of brown and tiger trout is a management strategy to help control invasive tui chub and golden shiners.

  • 2017: stocked 20,000 sterile tiger trout in the six to seven-inch range.

  • 2018: stocked 15,000 sterile tiger trout and 10,000 sterile brown trout in the six to seven-inch range. Brown trout stocking was added to increase predation on invasive tui chub and golden shiners.

  • 2019: stocked 15,000 sterile tiger trout and 5,500 sterile brown trout in the six to seven-inch range.

  • 2020: stocked 15,000 sterile tiger trout and 21,000 sterile brown trout in the five to six-inch range.
Rainbow Trout Caught / Angler by Year
  • 2020: 2.26
  • 2019: 2.47
  • 2018:3.43
  • 2017: 2.70
  • 2016: 2.33
  • 2015: 1.18
Angler Success
Click to expand...
Tell me about the bass though😁
 
Billy said:
Never mind I was thinking about Davis
Click to expand...
Davis is a Fly Fishing only lake that once was "the" fishery for Trophy Trout in Central Oregon. An illegal stocking of LMB and with drought and the porous lava bed that it sits in with combination of the drought has pretty much decimated the trout fishery. However, the LMB did thrive and it turned into probably the only Fly Fishing only bass lake ever created. But due to drought situation Davis Lake is on the verge of becoming Davis meadow and LMB fishery has gone done a bit as well. ODFW didn’t want to “reward” the illegal stocking so they didn’t turn it into a general regulation lake and kept it Fly Fishing only. Plus not the best access when it comes putting in large boats in and not very deep and it does significant bird life there – including an Eagles nest which for a period of time shutdown a boat launch and campground. For awhile it was kicking out some pretty impressive LMB and some fly folks made the adjustment and enjoyed it for what it was – a Fly Fishing only LMB fishery. Strongly encouraged to keep all LMB in a weak attempt to revise the trout fishery – too little, too late. It can’t be poisoned due to the porous lava bed and the water escaping and endangering other fisheries around the area.

Interesting case study of mismanagement and introduction of invasive species impacts. But the drought is killing Davis as well.
 
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