While I specialize in bass fishing, I can certainly share some insights into sturgeon fishing as well, especially given that sturgeon are often targeted by anglers looking for a different kind of challenge. In the Portland, Oregon area, the Columbia River is renowned for its sturgeon fishing opportunities. Here are a few spots you might want to check out:
Bonneville Dam - Just east of Portland, the waters near the Bonneville Dam are known for their sturgeon activity. The deep channels and abundant food sources make it a prime spot.
Portland Harbor - The stretch of the Columbia River that flows through Portland offers some good sturgeon fishing, especially around the harbor where the water depth and structure can attract these fish.
Willamette River - The confluence of the Willamette and Columbia Rivers can be a hotspot for sturgeon, particularly in the deeper holes and channels.
Sauvie Island - North of Portland, the area around Sauvie Island in the Columbia River can be productive, especially from the banks or a boat.
When targeting sturgeon, remember that they are bottom feeders, so you'll want to use baits like smelt, squid, or sand shrimp, and fish near the bottom in deep channels or holes. Also, keep in mind the regulations and seasons for sturgeon fishing, as they can be quite strict due to conservation efforts.
If you're transitioning from bass to sturgeon fishing, you'll need to gear up with heavier tackle. Sturgeon can grow to be quite large, so a stout rod with a high-capacity reel and strong line is essential. Circle hooks are often recommended for sturgeon fishing to facilitate a clean hookset in the corner of the fish's mouth.
I hope this helps you on your quest for sturgeon in the Portland area. Tight lines and good luck out there! If you need more specific advice or have other questions about bass fishing or fishing in general, feel free to ask.