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In this week’s Mobile-Tensaw Delta Fishing Report, host Nick Williams checks in with Dip McMillan for a hot-weather crappie report from the Mobile-Tensaw Delta. With the Fourth of July weekend bringing heavy boat traffic, high heat, and changing water conditions after recent storms, Dip breaks down where he is finding cleaner water, how he is using electronics to locate fish, and why floating grass mats with wood have been the key to the bite.
The second half of the episode revisits a conversation with Rowell Guevara and biologist R. Scot Duncan, author of Southern Rivers and Southern Wonder. That segment focuses on Gulf sturgeon, their history in Mobile Bay and Alabama rivers, the importance of fish passage, and what the species can teach anglers about the health of the Mobile-Tensaw watershed.
Conditions Recap
The Mobile-Tensaw Delta is in a true summer pattern, with heat, high humidity, and very warm water shaping both the fishing and the way anglers need to plan their trips. Nick Williams opened the episode by noting that recent shows have been shorter because of illness and because many contributors have also been fishing less due to the heat and high water after recent storm systems.
Dip McMillan said surface temperatures have been running extremely warm, with readings around 88 to 89 degrees early and climbing to about 92 degrees by lunchtime. Even with that heat, he said the rivers have dropped significantly, and he was able to find good water in areas such as Briar Creek and around Mifflin. Bear Steam had been around the six-and-a-half-foot range, which helped him decide to launch at Cliff Landing and stay farther south around McReynolds, Briar Creek, and similar water.
The better crappie bite has been tied to floating grass mats, especially grass mats that have gathered around logs, stumps, or trees. Dip said the fish were using those shaded, covered areas even in surprisingly shallow water. Some fish were holding in seven to eight feet, while others were in four to five feet, which reinforces how different the Mobile-Tensaw Delta can be from deeper lake and reservoir systems during the summer.
Holiday boat traffic and heat safety are also part of the conditions report. Nick and Dip both emphasized making sure life jackets, registration, fire extinguishers, and other safety gear are easy to access before heading out. With heat index values capable of pushing into the 105 to 110 range, the best plan is to fish early, stay hydrated, and be off the water before the worst of the midday heat and traffic.
Mobile-Tensaw Crappie Report with Dip McMillan
Dip McMillan said his most recent strong trip came in Briar Creek, where he found clean enough water and a very good crappie bite around grass mats. The key was not just finding floating grass, but finding grass that had hung up on a piece of wood, a log, a stump, or a tree. When that combination was present, Dip said the fish were stacked on it.
The pattern was a summer shade-and-cover pattern. The water was hot, but the fish were sitting still in shallow and mid-depth areas where the grass created shade and ambush cover. Dip said the trick was getting the bait through the grass mat cleanly. Once the bait got through the cover, the bite was strong, and he found quality crappie using that approach.
Electronics were a major part of the report. Dip said side scan was the ticket because it helped him quickly find the right pieces of cover instead of spending too much time trolling and searching blind. He also mentioned using LiveScope to confirm fish around structure. For anglers fishing the Tensaw, Mobile, or Tombigbee systems right now, he recommended targeting structure in roughly five to eight feet of water first, with ten feet also worth checking.
Gear and product notes from Dip’s section include side imaging, LiveScope, four- to six-pound test line, and multiple crappie poles ready to fish. He said he was re-spooling and checking each rod because the structure-heavy bite can nick, fray, and weaken light line quickly. His advice was to run your fingers down the line and cut off several feet if it feels rough or brittle. A small line problem is the kind of thing that can cost an angler a personal-best fish.
Hot Weather, Boat Traffic, and Safety Notes
Dip said some of his best summertime crappie fishing happens when the humidity is so thick it feels hard to breathe, but that does not mean anglers can ignore the heat. He works in the heat regularly and still treats summer fishing with caution, especially when fishing alone. His plan is to launch early, fish through the morning, and be off the water around 11 a.m. before the hottest part of the day.
He also mentioned carrying a Millennium Shadetree Umbrella, a DeWalt fan, plenty of water, and anything else that helps keep the boat cooler. Nick added that electrolytes can make a major difference on the water. He explained that water alone is sometimes not enough during extreme heat, and that sodium, magnesium, and potassium can help the body absorb and use fluids more effectively.
For the Fourth of July weekend, Dip also reminded anglers that marine police will likely be active, so boaters should make sure all required safety gear is in place and easy to reach. That includes life jackets, registration, and fire extinguishers. With more people on the water than usual, an early start and early return can help anglers avoid both the worst heat and the busiest traffic.
Gulf Sturgeon, Southern Rivers, and the Mobile-Tensaw Watershed
The second half of the episode revisits a conversation between Nick Williams, Rowell Guevara, and biologist R. Scot Duncan about Gulf sturgeon and Alabama’s river systems. Duncan explained that Gulf sturgeon are ancient, bottom-oriented fish with bony scutes, a shark-like tail, a long snout, and barbels that help them find prey along the bottom. Young sturgeon use bays and estuaries, while adults feed in coastal and Gulf waters before migrating upriver to spawn.
R. Scot Duncan described Gulf sturgeon as part of a larger group of sea-run fish that historically moved between saltwater and freshwater. Instead of spawning in the bays, adult sturgeon migrate upriver to cleaner, clearer, rockier water where their sticky eggs have a better chance to develop. Those eggs can be smothered by silt, which is why access to suitable upstream spawning habitat is so important.
The conversation also covered how different Gulf sturgeon are from salmon. Salmon are famous for spawning and dying, but Gulf sturgeon can return downstream after spawning and repeat that process over multiple years. Females may not spawn every year because the migration and egg production require so much energy. Duncan said female sturgeon may need three or four years before making another spawning run.
Historically, sturgeon were abundant enough to support Native American harvest and later a commercial caviar fishery. Duncan explained that the commercial sturgeon fishery expanded quickly after caviar production developed in the late 1800s, and within about 50 years many Atlantic and Gulf sturgeon populations had been severely overfished. By around 1920, the commercial fishery had collapsed because the fish could no longer support that level of harvest.
Dams, Fish Passage, and the Future of Gulf Sturgeon in Alabama
One of the major themes in the R. Scot Duncan segment was that overfishing is no longer the main issue for Gulf sturgeon. Today, the larger problem is river access. Gulf sturgeon are loyal to the rivers where they were born, and dams can block those fish from reaching the upstream spawning grounds they need.
Duncan pointed to the Claiborne Dam, completed in 1969, and Millers Ferry Dam, completed in 1970, as major barriers in the Alabama River system. Those dams cut off sturgeon from much of the historic spawning habitat in the Mobile River Basin. That matters because the Mobile Bay watershed drains a large portion of Alabama and historically supported fish migrations from the Gulf into the river systems.
The discussion also covered environmental DNA, or eDNA, as a tool for detecting whether Gulf sturgeon may still be moving in parts of the system. Duncan said eDNA has detected Gulf sturgeon DNA below and above Claiborne Dam, which suggests at least some fish may still be present or moving through the area. That does not tell biologists how many fish are there, but it does provide hope that remnants of the original population may still exist.
One possible restoration path is fish passage. Duncan discussed work involving the Nature Conservancy and the Army Corps of Engineers to study fish bypass options around Claiborne and Millers Ferry. A fish bypass would create a channel around a dam with a gradient low enough for fish to swim upstream. He also noted that dam removal would provide the clearest path for restoring natural migration, but fish bypasses may be an important step toward reconnecting Alabama’s rivers.
Why Gulf Sturgeon Matter to Anglers
The Gulf sturgeon conversation was not just about one rare fish. Rowell Guevara and R. Scot Duncan used the species as a way to talk about the health of Alabama’s rivers as a whole. Sea-run fish historically moved nutrients from the Gulf and estuaries back into the upper watershed, helping support the larger ecosystem. When those migrations disappear, the rivers lose part of the natural cycle that helped them function.
Duncan also connected sturgeon conservation to mussels, water clarity, sediment, and river health. Freshwater mussels once filtered huge volumes of river water, helping create clearer systems than many anglers see today. When rivers lose mussels, sea-run fish, and other native species, they lose pieces of the natural system that supports clean water, fish habitat, and the outdoor experiences anglers care about.
The segment also touched on dredging, Mobile Bay, and the difficulty of balancing economic development with fish and habitat needs. Duncan said dredging can stir up sediment, resuspend contaminants, increase turbidity, and alter salinity and oxygen patterns in the bay. His larger point was that anglers, conservation groups, and decision-makers need to understand what is at stake so Alabama can protect both its working waterfront and its extraordinary freshwater biodiversity.
What to Expect This Week
Crappie anglers should look for the best available water, focus on early mornings, and use electronics to shorten the search. When the rivers are falling and water levels are in the right range, places such as Briar Creek, McReynolds, Mifflin, and other southern Delta areas can produce. Grass mats with wood are the main target, especially where fish can sit in shade and ambush bait.
Dip’s report suggests that anglers should not assume hot water automatically pushes every crappie deep. In the Mobile-Tensaw Delta, he has repeatedly found summer crappie shallow, especially around grass mats, logs, stumps, and other structure. Side scan and LiveScope can help identify the right cover before wasting time in unproductive stretches.
Anyone fishing over the holiday weekend should plan around heat and traffic. Launch early, check the line on every rod, bring more water than you think you need, add electrolytes, and keep safety gear where it can be reached quickly. If you are fishing alone, shade, a fan, a clear float plan, and an early return are all worth building into the trip.
For anglers interested in the conservation side of the Delta, the Gulf sturgeon segment is a reminder that the Mobile-Tensaw system is connected to a much larger watershed. The fish that do or do not move through those rivers tell a bigger story about water quality, habitat, dams, sediment, and the future of Alabama’s freshwater fisheries.
