Sub-alpine lake fishing in MRNP 7/21/2023

Starman77

Life of the Party
Forum Supporter
Thought I'd re-try one of the sub-alpine lakes I fished last summer to see if the Brookies had increased in size at all. I was worried that it might have winter-killed like so many of the high altitude lakes in Washington and BC. On this outing I landed and released 16 Brookies in the 12 to 14 inch range, most at 13 inches, so the same size as last summer. However, the main attraction of this lake are the views. Here's a photo of Mount Rainier:

20230721_120119.jpg

And of Unicorn Peak from the far side of the lake:

20230721_153440.jpg

The Brookies were very plain-looking, although a couple of them had a little color, like this one:

IMGP5914.JPG

Lots of wildflowers were blooming, especially the spirea:

20230721_112450 Rose Spirea.jpg

The Brookies were all down deep in the 24 to 32 foot depths. The takes were very, very subtle, with most of them indicated by just light pressure on the line.

Although I was the only float tuber out there on the lake yesterday, you won't find solitude there, as there are lots of hikers and campers visiting the lake all day. You'll end up spending a lot of time at the parking area, on the trail and at the lake answering questions from tourists and getting your photo taken. Now I know what it is like to be a celebrity float tuber. :ROFLMAO:

Before fishing any lake or river in the Mount Rainier National Park, I recommend reading the park fishing regulations booklet carefully (can be downloaded online), as it differs considerably from the Washington state fishing regulations. For one thing, you don’t need a fishing license. There is also no limit (either size or number) on the fish you catch in a lake. In a lake, you can fish for spawning fish, and you are allowed to snag fish. This a quote from the regulations: “Retention or humane euthanization of non-native fish is encouraged to reduce competition and likelihood of hybridization with native fish, as well as to restore ecosystems for other native aquatic species. Euthanize fish as humanely as possible (i.e., a blow to the head followed by pithing or decapitation).”

In the parking area I spoke to one of the park rangers about this, and he said that they are trying to protect frogs. While I can technically understand why the park fisheries biologists want us anglers to either keep or kill the non-native fish, like the Brookies, Kokanee or westslope cutthroats, I just have a hard time killing those Brookies that I was catching. I released all the Brookies I landed. This does mean that continuing to fish when the water reaches 70°F or higher is ok, as any fish incidentally killed would help the park. However, I find it hard to believe that anglers alone can get rid a lake of populations of non-native fish, as it only takes a few fish to rapidly re-populate a lake. It also seems to me that rotting fish carcasses would ruin the pristine environment that the swimmers at this lake enjoy. In all my years of fishing, I have never seen a frog, toad or tadpole in a trout’s stomach (although I have seen a Tiger salamander), so I think fish predation on frogs is likely a rare occurrence. I can see how the small fry can compete with the tadpoles for insect food along the shorelines. It also seems to me that Brookies have naturalized over the years and have become natives. I am admittedly conflicted over this policy. You'll have to make your own decision on this matter, but it is something to think about prior to fishing any lake in the park.

Rex
 
. In all my years of fishing, I have never seen a frog, toad or tadpole in a trout’s stomach (although I have seen a Tiger salamander), so I think fish predation on frogs is likely a rare occurrence. I can see how the small fry can compete with the tadpoles for insect food along the shorelines. It also seems to me that Brookies have naturalized over the years and have become natives. I am admittedly conflicted over this policy. You'll have to make your own decision on this matter, but it is something to think about prior to fishing any lake in the park.
Wow, what a stunning setting to catch nice sized brook trout!

Predation by Introduced fish—especially trout on amphibians is definitely a well-studied phenomenon. There’s tons of info and studies out there on this topic, probably because trout fishing is popular!
 
Rex are you going to become an influencer? 😁
I doubt it, considering I didn't even know what an influencer was till now, and I don't do much social media (aside from this site), being kind of old fashioned in that regard. I also am not trying to persuade anyone to kill or not kill Brookies, but to just be aware of the park regulations. At this lake, for whatever reason, the Brookies seem to be self-regulating their population so that there are not a lot of small or stunted Brookies, at least for now. I don't know, maybe I should be killing some of the Brookies in this lake, in my own self-interest, to try to grow larger Brookies? However, larger Brookies might be more likely to eat frogs, so who knows what is the best thing to do?
 
My guess would be the Brookies from that lake would probably be pretty good table fare .. a couple of the larger ones wouldn't be too bad I think. I don't eat much trout, I keep one or two a year to BBQ, but IMHO Brookies are the best tasting "trout" - especially when they are from higher altitude lakes and are in that 12-14 inch range. Considering the circumstance, I would have probably taken a couple home, but to each their own.

Nice report BTW....

Peach
 
My guess would be the Brookies from that lake would probably be pretty good table fare .. a couple of the larger ones wouldn't be too bad I think. I don't eat much trout, I keep one or two a year to BBQ, but IMHO Brookies are the best tasting "trout" - especially when they are from higher altitude lakes and are in that 12-14 inch range. Considering the circumstance, I would have probably taken a couple home, but to each their own.

Nice report BTW....

Peach
The only time I ate a Brookie that tasted really good was from a lake near Cranbrook BC where some of the Brookies grew to 7 pounds in size, feeding on lots of scuds. Those scuds turned the Brookie flesh bright orange, like a salmon, and they tasted like salmon. I didn't see any scuds in this sub-alpine lake, but maybe next time I'll keep a couple just to see what they're eating and what they taste like. I'll probably find their stomachs full of tadpoles and frogs, and they'll taste like frog legs. ;)
 
The only time I ate a Brookie that tasted really good was from a lake near Cranbrook BC where some of the Brookies grew to 7 pounds in size, feeding on lots of scuds. Those scuds turned the Brookie flesh bright orange, like a salmon, and they tasted like salmon. I didn't see any scuds in this sub-alpine lake, but maybe next time I'll keep a couple just to see what they're eating and what they taste like. I'll probably find their stomachs full of tadpoles and frogs, and they'll taste like frog legs. ;)
I fish a couple of lakes in NE Oregon and notice that one of them has a lot of brook trout with pink flesh and the others do not. Fish from those lakes taste good cooked in a cast iron frying pan, but those lakes are at 7000 ft.
 
I ate a few brookies from a Washington lake at around 4,500 feet a few years ago.....tasted like the shoyu (soy sauce) I had to dump on them! All C&R from then.
 
Back
Top