I have been fishing Stone Lagoon on the far North coast of California since I moved here. Stone, and it's counterpart Big Lagoon are unusual stillwaters. Once a year to every few years, the sand spit separating the lagoon from the ocean breaks and the lagoon partially drains, and coastal cutts and steelhead, and to a lesser extent, salmon, migrate into the lagoon and become trapped when the sand spit closes again. They then spawn in the feeder creeks. The lagoons become progressively less brackish as they fill with fresh rainwater. Several times I have been fishing here and discovered caddis larva, still in the case. I have found at least 2 different species, and both times they were about a mile away from any inflow streams. Baitfish and scud type things are the main food items for the fish. So, my question is, are there any types of Caddis that can live in a brackish stillwater? I'm assuming that the caddis that I found were washed out of a feeder creek. But like I said, they were close to a mile from the creek, and were still alive and appeared very frisky.