A fish-tagging program built around Mobile Bay's most popular inshore species is giving Alabama anglers and researchers an increasingly detailed picture of how speckled trout and redfish move, grow and survive along the Gulf Coast. The TAG Alabama program, launched in 2017 by the Coastal Conservation Association (CCA) Alabama, has now tagged thousands of fish, and the data is starting to reveal patterns that surprise even the scientists studying them. The program is a partnership between CCA Alabama and the University of South Alabama's School of Marine Sciences, working alongside researchers at the Dauphin Island Sea Lab.
Volunteer anglers who are CCA members tag legal-sized trout and redfish they catch, then anyone who later recatches one of those fish can report the recapture for a reward. The recapture reports, filed through a smartphone app, a dedicated website or a toll-free phone line, are what allow researchers to reconstruct where individual fish have traveled and how long they lived between being tagged and caught again.
After a year without in-person events because of COVID-19 restrictions, CCA Alabama recently resumed its tagging seminars, holding sessions in Birmingham and Daphne to teach anglers how to tag fish properly so the fish are not injured and the tags stay secured. CCA Alabama's executive director and a University of South Alabama graduate student who studies inshore species at the Dauphin Island Sea Lab's Fisheries Ecology Lab led the instruction, walking participants through safe handling techniques and sharing the latest findings from years of tagging data. The data so far shows a clear behavioral split between the two species.
Speckled trout tend to be constant travelers, moving frequently even within familiar territory, while redfish behavior is far less predictable. One redfish tagged near Dauphin Island turned up near Pensacola about 30 days later. Another, tagged near an island in the Mobile River, was recaptured 130 days later in Lake Pontchartrain, Louisiana — a journey of well over 100 miles. Yet a third redfish was recaptured three separate times in the exact same spot by the same angler, first in 2017 and twice more in 2018, showing that some fish barely move at all.
That contradiction echoes earlier acoustic tracking work on red drum in Dog River and Fowl River, where researchers worried that a fish signal staying on the same receiver for long stretches might mean the tagged fish had died. Instead, several of those fish were later recaptured within about 100 yards of where they were originally tagged, evidence that they had simply settled into a comfortable spot with enough food to thrive.
Background and Context
Speckled trout, researchers say, behave almost the opposite way — anglers may catch them in the same general areas year after year, but the fish themselves are constantly on the move within that range. This year, TAG Alabama introduced a new bull redfish tag specifically for larger fish. Redfish longer than 26 inches are generally classified as bull reds, though researchers say they would prefer anglers focus on tagging fish 30 inches and larger.
As more of those tags get distributed and recaptured, scientists hope to learn whether large bull reds are heading offshore to spawn, as expected, or moving up into the Mobile-Tensaw Delta instead. CCA Alabama has also approved funding for a related University of South Alabama study using acoustic and satellite tags to track bull redfish offshore. Participation in the program has grown steadily since it began. TAG Alabama has now tagged 2,615 redfish, with 424 of those recaptured, for a recapture rate of about 16 percent.
For speckled trout, 2,364 fish have been tagged and 206 recaptured, a rate of roughly 8.7 percent. Both figures far outpace typical results from larger regional tagging programs, which usually see recapture rates in the range of 4 to 5 percent. Researchers credit better-trained anglers, a result of the seminars, for keeping tags secured properly and reducing the chances a tagged fish loses its marker before it can be caught again. Redfish in particular tend to stay in the same general areas, which combined with heavy fishing pressure in those spots, helps drive up their recapture numbers.
Organizers describe the program as a model of citizen science, arguing that involving everyday anglers directly in data collection makes the research both more efficient and more far-reaching than what a small team of scientists could accomplish alone. Anyone participating can report tagging or recapture information through the Fishing Chaos app, through a dedicated university website best accessed on a computer, or by calling a toll-free hotline. To protect angler privacy, the app blurs the exact location where a tagged fish is recaptured.
Only legal-sized fish are eligible for tagging — a minimum of 15 inches for speckled trout and 16 inches for redfish — and when a tagged fish is recaptured, email reports go out to both the original angler who tagged it and the angler who caught it again. A related effort is now extending similar tracking methods to Southern flounder, a species that has declined significantly in Alabama waters over the past decade.
Background and Context
The Alabama Marine Resources Division has provided funding for the Dauphin Island Sea Lab's Fisheries Ecology Lab to capture and tag the fish using acoustic transmitters and a network of receivers that blanket Mobile Bay, logging data whenever a tagged flounder swims within range. In 2019, the state raised the minimum size limit for flounder to 14 inches and set a bag limit of five fish per angler, and the harvest of flounder is now prohibited throughout November to protect fish migrating offshore to spawn.
Researchers tag flounder in the fall in the upper reaches of Mobile Bay, catching them on hook and line before inserting acoustic tags and collecting otoliths, or ear bones, for age data, along with reproductive samples. Southern flounder females grow considerably larger than males, which rarely exceed about 13 inches and spend most of their lives offshore. The tagging effort has expanded each year — 67 flounder were tagged in 2019, including several fish weighing six and seven pounds and one 10-pounder, and 70 were tagged in 2020, with a goal of reaching 100 fish this year.
Early data suggests roughly 30 percent of tagged flounder eventually leave Mobile Bay, though researchers say it will take several more years of tracking to fully understand the offshore migration pattern. One of the more striking discoveries from the flounder work is a homing instinct reminiscent of salmon. Large flounder tend to leave their home rivers in late fall and return to those same exact rivers roughly six months later. Scientists say it remains unclear exactly how the fish navigate back so precisely, whether through water chemistry, magnetic sensing or some other mechanism not yet understood.
State fisheries officials say programs like TAG Alabama and the flounder tagging effort provide critical data that shapes management decisions for these popular sport fish. Inshore tagging programs offer insight into seasonal movement patterns as well as catch-effort data that would otherwise be difficult to gather, and officials note that the more anglers who participate and the more fish that get tagged, the more valuable the resulting information becomes for setting size limits, bag limits and seasonal protections designed to keep Alabama's inshore fisheries healthy for years to come.
Wider Significance for Coastal Alabama
This story is part of a broader set of changes playing out across Mobile, Baldwin and the wider Gulf Coast region. Local residents, businesses and government agencies have been watching developments like this one closely, because decisions made in Mobile and Baldwin counties often ripple outward into neighboring communities across south Alabama, Mississippi and the Florida Panhandle. Public meetings, council work sessions and state legislative hearings have all carried echoes of the underlying concerns, with stakeholders ranging from neighborhood associations to industry groups weighing in on what the outcomes will mean for daily life along the Gulf Coast. Reporters and editors in the region have worked to document how these issues affect ordinary people, from commuters on Interstate 10 to families visiting the public libraries and parks that anchor so many of the Port City’s neighborhoods. The deeper context often emerges over months rather than days, as projects move from announcement to planning to construction, and as the people most directly affected find their voices in the public record. Continued coverage remains important, both for accountability and for the historical record, and the unfolding situation is one that warrants attention from anyone with a stake in the future of south Alabama.
Looking ahead, observers across the region expect the conversation to continue evolving. Local officials have signaled their intent to monitor outcomes closely, and community organizations have indicated they will remain engaged as new information becomes available. The intersection of state policy, local implementation and on-the-ground impact is precisely where stories like this one tend to develop their lasting significance. For Mobile and Baldwin residents, the practical effects will play out over time, in everything from tax bills and utility rates to traffic patterns and the availability of public services. Following the developments requires patience and attention to detail, but it is also a reminder of how civic life in coastal Alabama continues to be shaped by decisions that begin far from the neighborhoods they ultimately touch. Residents who want to stay informed can do so by following local government meetings, attending public hearings when significant issues arise, and reading the regional reporting that tracks how these stories progress from one phase to the next.
Local news organizations continue to follow this story closely, and updates are expected as more details emerge. The developments have generated discussion across the region, with attention from both longtime residents and newcomers who are following the issue for the first time. Community leaders have emphasized the importance of staying engaged with local government and participating in public meetings when significant decisions are being made. As the situation continues to unfold, residents are encouraged to remain informed through reliable local reporting and official city and county communications channels. The story remains active, and additional information is anticipated in the coming days and weeks as the relevant agencies and stakeholders complete their work.