S8, Ep 27: The Pre-Spawn Puzzle: Captain Brian Shumaker's Tips for Pennsylvania Smallmouth

Episode OverviewThis fly fishing podcast episode launches the inaugural Pennsylvania Smallmouth Report on The Articulate Fly, featuring host Marvin Cash and Captain Brian Shumaker of Susquehanna River Guides. The episode arrives at a pivotal moment in the Pennsylvania smallmouth spawn cycle, with an unseasonably volatile spring — swings from the upper 50s to the 70s in water temperature within days — compressing what is normally a methodical, staggered spawn into a chaotic quest to pattern pre-spawn fish. On the Juniata and Susquehanna, Shumaker reports catching spawned-out females alongside buck males, signaling that the first wave has already completed, while subsequent waves are just arriving. The conversation covers responsible angler strategy during the spawn, where to focus presentations to avoid disturbing bedding fish and how low flows on the tributaries have pushed fishing pressure onto the main river. Shumaker also previews his summer guide calendar, highlighting July through September as prime topwater and streamer season, and teases a planned trip with Bob Clouser to target peacock bass in Florida.Key TakeawaysHow volatile spring water temperatures — from the upper 50s to the low 70s within days — compress the smallmouth spawn and make it more difficult to pattern pre-spawn fish on Pennsylvania riversWhy concentrating presentations on mid-river structure rather than bank edges is the most effective and responsible strategy when spawning activity is underwayHow to identify when you've stumbled into bedding fish — landing several fish in quick succession from the same bank zone is the signal to back offWhen swim flies, Deceivers and Half-and-Halfs, produce in mixed-bag pre-spawn and spawn-transition conditions on the Susquehanna systemWhy Pennsylvania tributary flows have been too shallow for float trips since mid-April, making main-stem Susquehanna and Juniata fishing the primary option this springWhen to plan a guided Pennsylvania smallmouth trip with Shumaker: July through September for topwater popping bug fishing, with streamer and crayfish options throughoutTechniques & Gear CoveredShumaker's current approach to the spawn-transition period centers on streamer-style patterns — swim flies, Deceivers and Half-and-Halfs — chosen for their ability to produce across a wide range of water temperatures and fish behavior stages. The mixed-bag nature of the conditions (cold-water days followed immediately by warm-water days) makes pattern commitment difficult, and Shumaker acknowledges the fish have been hard to lock into a single presentation. For summer bookings, he highlights popping bugs and topwater flies as the primary draw from July through September, with streamers and crayfish patterns rounding out the arsenal.Locations & SpeciesThe primary fishery covered is the Susquehanna River and Juniata River system in central Pennsylvania, with additional context on the region's smaller tributaries, which have been unfishable by raft since approximately mid-April due to low water. The target species is smallmouth bass, with Shumaker noting a split population dynamic: first-wave fish (spawned-out females and smaller buck males) already post-spawn, and subsequent waves still staging or actively on beds. Water temperatures have swung dramatically this spring — from the upper 50s approaching 60°F to the low 70s within a single week — creating an unusually compressed and difficult-to-pattern spawn window across the Susquehanna drainage.FAQ / Key Questions AnsweredHow do you tell if you're fishing over spawning smallmouth on beds rather than pre-spawn fish?Shumaker's rule of thumb is location and catch rate: pre-spawn fish are still staging out in the current and mid-river structure, while fish on beds are in the shallower water along the banks and edges. If you're casting toward the bank and catching multiple fish in quick succession from the same area, you're almost certainly into bedding fish — the responsible move is to back off immediately.What fly patterns are working for pre-spawn and spawn-transition smallmouth on the Susquehanna system?Shumaker has been rotating through swim flies, Deceivers and Half-and-Halfs during the transition period. He notes the fish have been difficult to pattern because water temperatures have swung significantly day to day, so he's fishing a mixed approach rather than committing to a single presentation.Why are Pennsylvania smallmouth tributaries unfishable this spring?Low water has been the dominant story on the tributaries since roughly the second week of April. Despite brief bumps from rain events, levels drop back