LouisianaDEEP SEA FISHINGLOUISIANA FISHING · RESEARCH & DATA
Read the data behind fishing questions that are easy to oversimplify. These case studies explain what was measured, what changed, what the evidence supports and where the answer stops.
Records → comparison → a conclusion with limits
Historical agency records, published studies and reproducible analysis. Each study identifies its source and scope.
01 / RESEARCH AREA · 04 STUDIES
Studies that compare water observations, forecasts and changing environmental conditions.
NOAA OBSERVATIONS · 2025
Compare a full year of NOAA water levels and tide predictions, with monthly and seasonal findings, quality exclusions, reproducible data and a clear conclusion.
Monthly water-level departures changed through the year; one annual offset cannot describe the pattern.
HOLDOUT MODEL TEST · 2025
A reproducible 2025 NOAA test of wind, pressure and water-level estimates—and why a good training fit failed on later months.
The tested weather model did not improve the tide prediction on the reserved final quarter.
TWO LOUISIANA SITES · 2019
A reproducible USGS comparison around the first 2019 Bonnet Carré opening shows why one station and a closure date cannot describe the whole coastal system.
Salinity magnitudes and post-closure paths differed between the monitored sites.
NOAA FORECASTS & OBSERVATIONS
Six years of NOAA forecasts, 160 measured oxygen records and Gulf fish research explain habitat loss, the 2026 forecast miss and what a good catch cannot tell us.
One small annual dead-zone footprint does not show that the nutrient problem is solved.
02 / RESEARCH AREA · 06 STUDIES
Research on fish catches, habitat, handling and the limits of applying study results to a trip.
PUBLISHED REDFISH TRIALS
Published red-drum trials compared by hook geometry, rig and follow-up, with audited counts and a clear release-fishing conclusion.
Properly used non-offset circles reduced deep hooking in the reviewed natural-bait evidence; no universal survival rate follows.
PUBLISHED CATCH-RATE STUDIES
A Gulf species-and-gear comparison tests the idea of a universal best moon, with calculated phase contrasts and practical lessons for Louisiana redfish planning.
Moon associations vary by species and method; the review does not establish a best Louisiana redfish moon.
HABITAT & FISHING REMOVALS
Two Gulf cases separate local red-snapper catch rates, juvenile habitat value and concentrated fishing pressure from claims of net population production.
Local opportunity and juvenile habitat value do not by themselves establish net regional production.
GULF RELEASE TELEMETRY
A Gulf release-method case study separates depth-specific tag returns, delayed mortality and the limits of a best-case survival estimate.
At 30–50 m, 20–30 m descent had stronger relative return evidence than surface venting in one study; this is conditional evidence.
COLD EXPOSURE & NOAA RECORDS
North Carolina fish evidence and a full-month Louisiana temperature record separate cold exposure, mortality and the deeper-water refuge hypothesis.
Cold severity, duration and alternative habitat matter; a single cutoff cannot diagnose a Louisiana winterkill.
LDWF ESTIMATES · 2014–2025
LDWF offshore charter estimates show a spring signal in historical landings per angler trip, while winter coverage and survey precision limit any claim about the most dependable season.
Spring is worth comparing, but the record cannot rank winter reliably or forecast an individual trip.
03 / RESEARCH AREA · 01 STUDY
Historical regulation evidence and what it can show about fishing behavior and outcomes.
HISTORICAL POLICY & NEW RULE
LDWF’s historical evaluation found the former 14-inch minimum did not increase larger bass. The 2026 12-inch/five-fish rule is new, and its population outcome remains untested.
LDWF found the old 14-inch minimum missed its stated goal; the 2026 rule is too new for an outcome verdict.
HOW TO READ A CASE STUDY
Our studies distinguish analysis of published records from observations we collected ourselves. Check each article for its source, dates, sample or station coverage, exclusions and reproducible method. A result from one fishery, site or season does not automatically describe every Louisiana trip.
How we research and review ↗Pair a study with the practical lesson or species guide that explains what it means for an outing.
Browse Louisiana fish guides ↗Browse practical fishing lessons ↗