About that other trout stream...

If you recall, last week I gave a little teaser about sampling a trout stream along the St. Croix. We made it there on Thursday, and it was NOTHING like that meadow-meandering stream I wrote about last week. This stream was nothing short of mystical.

If you're looking for it from the river, all I can tell you is good luck. We could hardly find the mouth; it was a narrow flowage barely visible in the grass. But once you get out of the river plain and start walking into the woods, this stream takes on a life of its own. It rushes over rocks and sand, twisting and turning through floodplain forest. As soon as we took the first turn into the woods, armed with backpack electrofisher, my coworker and I found our first brook trout.

A bit about electrofishing...it is the accepted way to sample small streams. The fish are stunned by an electrical current, but not enough to kill them. They are netted, usually put into a bucket, and when there are a good number of fish we stop sampling to measure them, take scale samples (to determine ages), and release them. Of course, it is more effective than rod and reel fishing, which is probably why I hardly fish any more. The action is just too slow. :)

Back to this small stream...as it wound its way up the St. Croix bluffs, we shocked up brook trout after brook trout, and hardly anything else. There were hardly any pools more than a foot deep, but still they were there in the cool spring water. Most of them were small, averaging about 4 inches, but we did get a couple 8 inchers. We ended up with over a hundred brook trout, from the mouth of the stream to where the water got too shallow to find any more.

Brook trout amaze me. They survive in the smallest of streams, as long as water temperatures are right. They are beautiful fish.

wild cardinal flower

I had another fish-seeking adventure at work today. The destination was a small, unnamed tributary to the St. Croix River that I first blogged about nearly four years ago. I can't believe it's been that long already. If you were following me at that time, you may recall that this stream had been dammed by beavers and was quite difficult to walk. This year it did not appear to have any active beaver dams, although remnant logs were scattered here and there and the stream was still challenging, especially on a humid 85 degree day. We only caught two trout by electrofishing, one of which may have been young-of-year, but several others were missed in the dense overhanging vegetation and swift current of this cold, clear stream.

I was at this stream about a month earlier than the last time, and there were more species of flowers in bloom along the stream and river banks than I remembered. Ironweed, blue gentian, Joe-Pye weed, goldenrod, and cardinal flower, which I have not seen any further north along the St. Croix River than this area. I took this picture on an island where we paused for lunch before walking the stream.

Tomorrow I am headed back to the river to sample another small brook trout stream just north of the Osceola landing. I am told that one is much easier to walk, and much more scenic, than this one was. I'll bring the camera!

of trout, and the aquatic mammals that eat them

I was in the midst of another adventurous day at work. Lately, due to a coworker's taking family leave, I have been out more than in, sampling one stream after another with electricity. And you know what, I'm enjoying it, more than I have enjoyed any other work I've done (at work that is) since I can remember. In the last couple of weeks I have seen some nice waters, gotten to know a lot more of the local plants, and even seen a few brook trout.

I heard my cell phone signal a new voice mail. 99 percent of the time my cell phone messages are anything but urgent, but even though I was not in a strong signal area I decided to check it.

"Mom! There's a family of otters in the pond!"

My battery was going low, or I would have called back just to make sure I heard right. Today indeed a family of four otters had taken over the pond and were frolicking wildly! I wish I could have been there to see them. New wildlife sighting at Sand Creek!

Of course, this probably explains why last Friday, when we finally got around to sampling the stretch of Sand Creek that flows through my land, there were no trout. Otters eat fish, and they can take down the population of a brook trout stream easily.

But it does not explain why today, in a shallow, alder choked stretch of stream about five miles south of here, we sampled thirteen small brook trout in about a 500 foot length of stream. By small I mean, you would not even think of taking them home for dinner, but they were there! We were totally not expecting to see them. I'm sure otters lurk there now and then, and yet brook trout survive against incredible odds.

Nature is wonderfully balanced that way.

trout in small places, close to home

Do you see the stream in this picture?


Here's a better view. That pool has to be all of four feet wide and a foot deep.

This is a small tributary to Sand Creek. Yes, the Sand Creek. A mile or so from my home, as the crow flies. Today I was fortunate enough to get paid to come to this creek and see if there were any brook trout in there. There were. :)

I am totally amazed. After yesterday, where we found two adult trout in a stream devastated by beaver, I was beginning to wonder about the tenacity of brook trout. They demand cool water, and gravel substrate on which to spawn. Water temperatures above 68 degrees are lethal. As are drought years, which we are definitely in. Parts of this little ditch-creek were so low we were walking on wet gravel. But still, the brook trout were there. Hallelujah!

Of course, this is very good news for Sand Creek, about a half mile downstream. The brook trout live and flourish and reproduce against all odds. I am in awe.