Inshore & surf · Saltwater
Weakfish
Cynoscion regalis
Western Atlantic native, Nova Scotia to northeast/central Florida; greatest abundance between New York and North Carolina.
- Inshore
- Nearshore
- Surf
- Regulated context
- 4 of 4 overlays reviewed
- Reviewed 2026-08-27
Before you target this fish
Regulated context — check the rules for the exact water
Where this applies U.S. Atlantic coast, Nova Scotia to Florida, most abundant New York to North Carolina, under ASMFC interstate management - check the current bag limit in your state before keeping any fish.
The reviewed context, unedited
Managed by ASMFC alone via an interstate FMP dating to 1985; no federal fishery management council role was found in the sources reviewed, unlike summer flounder and bluefish, which are jointly managed with MAFMC. The stock has been considered depleted since 2003 and remains so: the most recent full assessment (2019) put 2017 spawning stock biomass at about 1,922 mt against a threshold of 6,170 mt, and natural mortality has run far higher over the last decade (about 0.92) than in the fishery's early years (about 0.16) for reasons not fully understood, which has kept the stock from rebuilding even under low harvest. Current coastwide measures are correspondingly restrictive: a 1-fish recreational bag limit in most jurisdictions and a 100-lb commercial bycatch cap.
Rules for this fish change at a state line and sometimes inside one. Check the ones that apply to the exact water you are standing on before you act on anything here — this record is biology, not permission.
Take this somewhere
This page is the record. The reading is what happens when you add water, a season and a temperature to it — that is where the families below get ranked against each other instead of just listed.
Those three links carry the fish and nothing else. No conditions were declared on this page, so none travel, and the link says so rather than sending an empty reading.
The half nobody publishes
What this record does not know
Everything else on this page comes from a named agency or peer-reviewed source. This is the other side of that: the questions a reviewer went looking for an answer to and came back without, and the fields the record leaves empty because filling them would mean guessing.
It is here rather than at the bottom because a page that only shows what it knows is easy to read as a page that knows everything. For Weakfish there are 12 of them.
Named by a reviewer
9Somebody looked for this and wrote down that they did not find it.
- Behaviour
Territoriality/aggression outside of spawning-group formation, cold-front response beyond the general fall migration trigger, water-level response, flow-change response, and angling-pressure response were not sourced.
The spawning-window disagreement between SCDNR (Mar-Oct, peak Apr-Jun) and a NOAA climate-vulnerability source (May-Aug) was not resolved.
- Identification
No regional/colloquial common name (e.g. names historically used for this species along parts of the coast) was confirmed via an agency source this session.
Sexual dimorphism, juvenile appearance and spawning coloration were not sourced.
Weight-at-length figures conflict somewhat between agency sources (about 1 lb typical vs. up to 18 lb maximum) and were not fully reconciled beyond labeling one as typical and one as maximum.
- Forage
A season-by-season diet breakdown was not found.
Forage substitution across regions was not sourced.
- Season
The spawning-window disagreement noted in the catalog record and behavior dossier also affects exactly when the spring entry's conservation note should begin.
Nobody has sourced:
- early_spring, early_summer, late_summer and late_fall were not separately resolved and were folded into the adjacent season.
Absent from the record
3No reviewer wrote a gap here. The field is simply empty, which is its own answer.
- Water temperature
No agency or peer-reviewed temperature band for Weakfish was found that a review would accept. The reading runs without one rather than borrowing a number from a related fish.
- Identification
No reviewed image. A photograph is only in this catalog when an agency or a named creator labelled the subject, and nobody has cleared one for this species yet.
- Population context
No regional population profile is registered. The species-level reading stands on its own; it does not silently become a local one.
Where the record puts it
Water and range
Inshore
3 reviewed holding classes- Grass flat
- Sand hole
- Channel edge
Nearshore
1 reviewed holding class- Inlet mouth
Surf
1 reviewed holding class- Surf trough
DepthA schooling, mid-water-to-bottom species over sand and sand-grass substrate rather than a hard-structure fish. Adults use estuaries, bays, sounds and nearshore coastal water, favoring sandy bottom and the edges of grass beds; juveniles use estuarine nurseries across a wide salinity range, favoring deeper secondary-nursery reaches over the shallowest tributaries, before moving to deeper channels and coastal water as they mature. Winter is spent offshore on the continental shelf. The Florida Fish and Wildlife Conservation Commission's weakfish profile - confirmed on repeated fetch of the page's raw text - states 'Adults move inshore and north during warm months inhabiting the surf, inlets, bays, channels and estuaries and offshore and south during cold months.' That is the basis for adding surf (generic trough/beach water, not a named jetty - jetty-specific use was not separately sourced) and nearshore (inlet) holding here.
Moving waterNot sourced as a tide-stage relationship in the material reviewed.
LightPrimarily a low-light/nocturnal feeder: a federal biological report states weakfish feed primarily between dusk and dawn, foraging along the periphery of eelgrass beds during that window.
Thermal band
Temperature
No reviewed temperature band
Nobody publishes a preferred or active temperature range for Weakfish that a review would accept. Borrowing one from a related fish would look like knowledge and behave like a guess, so the reading runs without it and says which parts of the answer that weakens.
How it uses water
Behaviour
Explicitly described as schooling in multiple agency sources; tighter, more frequent schooling was documented as water temperature rose toward about 29C/84F in one study, suggesting a thermal-stress schooling response.
A visual predator that approaches prey slowly, then lunges with an open mouth; the oblique mouth and canine teeth are described as adaptations for taking mobile, schooling prey. Juveniles take mysid shrimp and small fish on the bottom; adults take clupeids (menhaden, herring) and anchovies, with documented cannibalism.
A federal biological report states weakfish feed primarily between dusk and dawn, foraging along the periphery of eelgrass beds during that low-light window.
Seasonal activityPresent in Mid-Atlantic and northeastern estuaries spring through fall, moving south and offshore in fall/winter to shelf wintering grounds; juveniles depart estuaries by winter.
Temperature-driven behaviourDecreasing fall water temperature is described as the trigger that initiates the move of most weakfish out of estuaries to deeper water. In laboratory study, feeding stopped around 7.9C/46F and mortality was observed at 3.3C/38F.
Depth movementJuveniles favor deeper secondary-nursery reaches of estuaries (moderate depth, sand/sand-grass bottom) over the shallowest tributaries; adults and larger juveniles move to progressively deeper channels, coastal water, and eventually the continental shelf (documented juvenile depths of 9-26 m in late summer/fall; winter grounds 18-55 m).
CoverAssociates with the periphery of eelgrass beds for low-light foraging rather than occupying dense structure or the interior of a bed.
Spawning (conservation context)Spawns in estuarine and nearshore coastal waters; males form spawning groups and attract females by vibrating the swim bladder (drumming). South Carolina DNR gives a March-October window peaking April-June; a NOAA climate-vulnerability source gives May-August - this disagreement is recorded as a gap. Spawning location and any staging concentration are excluded from targeting in this catalog.
Where the general rule stops
- This species has an unusually soft mouth (the source of the common name); the diet and behavior information in this record documents feeding ecology only and is not fishing advice.
- The stock's long depletion is driven substantially by elevated natural mortality that management has not been able to fully explain or reverse. This catalog records that as conservation context; see the note below on targetStatus for why this record still uses regulated_context rather than conservation_sensitive, and why that judgment is close.
- Given a 20+ year depleted stock, an elevated and poorly-explained natural mortality rate, and a 1-fish bag limit across most of the coast, this record's classification of weakfish as regulated_context rather than conservation_sensitive is a judgment call, not a clean-cut determination - a reviewer could reasonably decide the stock's condition warrants the stricter category, which would also remove presentation guidance under this catalog's rules.
- Surf holding above is sourced only to a generic 'the surf' in one FWC line, not to a specific surf feature beyond open trough water, and no source found this session ties weakfish specifically to a jetty; treat the surf holding class as provisional relative to the more solidly sourced estuarine/inshore habitat above.
What it can eat
Forage
- Small forage fish
- Larger prey fish
- Crustaceans
- Mollusks
- Zooplankton
Juveniles take shrimp, crabs and small clams on the bottom, plus mysid shrimp and small fish generally; adults shift to schooling forage fish - menhaden, herring, anchovies, and in some accounts croaker and spot - plus penaeid shrimp and crabs, with documented cannibalism on smaller weakfish. This is diet capacity, not a current bait event.
- Feeding style
- Opportunistic
- Feeding zone
- Mixed
By life stage
- Juvenile
- Mysid shrimp, small clams, crabs and shrimp on the bottom.
- Adult
- Primarily schooling forage fish (menhaden, herring, anchovies; croaker and spot in some accounts), plus shrimp and crabs; documented cannibalism on smaller weakfish.
Prey sizeNot resolved beyond the juvenile (invertebrate/small-fish) to adult (larger schooling-fish) shift described above.
Ontogenetic shiftLarvae take zooplankton; juveniles shift to benthic invertebrates and small fish; adults become predominantly piscivorous on schooling baitfish.
Diet capacity is not proof of a current bait event. Observed current forage still comes from a user observation or Hatch Match.
Through the year
Season
Spring
- Where they sit
- Inshore estuarine and nearshore coastal water as adults return from the continental shelf.
- Movement
- Northward, inshore migration.
What that changesTidal drift bait and live/natural bait suspension become viable as fish reoccupy estuarine feeding grounds.
What would count against it
- treating spring as a fixed date rather than the sourced temperature-linked migration
Spawning begins in this window in nearshore/estuarine water; conservation context only.
Summer
- Where they sit
- Estuaries, bays, sounds and nearshore coastal water over sand and sand-grass bottom, foraging along eelgrass-bed edges.
- Feeding
- Pursuit predation on schooling baitfish; juveniles remain more bottom/invertebrate oriented.
- Light
- Feeds primarily dusk to dawn per a federal biological report; daytime presentations are not supported by the sourced behavior.
What that changesLive/natural bait suspension and tidal drift bait fished through the low-light window along grass-edge and open sand/sand-grass water.
What would count against it
- fishing this species as a structure/reef species - the sourced habitat is open sand and grass-bed edges, not hard cover
Fall
- Where they sit
- Departing estuaries for deeper coastal and continental-shelf water.
- Movement
- Falling temperature is described as the direct trigger for the move out of estuaries.
- Temperature
- Feeding is reported to stop near 46F in laboratory study, well below normal fall estuarine temperature - a cold-tolerance floor, not a fall behavior change.
What that changesInshore presentations lose fish progressively through the season as the population thins toward the coast.
What would count against it
- reading a thinning fall bite as a location problem rather than the stock leaving the water type this record covers
Winter
- Where they sit
- Continental shelf wintering grounds, outside the water type reviewed in this record.
Not covered by this record's inshore-only presentation guidance.
Spawning · Spring, Early summer, Summer
Spawns in nearshore coastal and estuarine waters. South Carolina DNR gives a March-October window peaking April-June; a separate NOAA climate-vulnerability source gives May-August. That is a disagreement between two agency sources on the exact window and is recorded as a gap rather than resolved here. Males form spawning groups and attract females by vibrating the swim bladder (the drumming sound characteristic of the drum family). Spawning sites and any staging concentration are excluded from targeting in this catalog.
Recorded as conservation context. No spawning site, staging concentration or migration bottleneck is named anywhere in this catalog, because naming one is how a population gets fished out.
Telling it apart
Identification
What to look at
- A pair of large canine-like teeth at the tip of the upper jaw.
- Wavy diagonal lines of small, irregular dark spots along the upper sides, notably absent from the tail and second dorsal fin - the trait that separates it from spotted seatrout, whose spots extend onto the tail and second dorsal.
- Black-tipped tongue.
- No barbels on the lower jaw.
- Pelvic and anal fins yellowish; other fins pale.
- Average adult length
- Commonly around 12-20 in; age-1 fish are typically 10-11 in.
- Common angling size
- Roughly 12-16 in for most recreational catches.
- Typical weight
- About 1 lb at typical recreational catch size, per one state agency source.
- Maximum documented
- Up to about 36 in and, per one Florida agency source, 6-18 lb; a South Carolina state-record fish weighed 11 lb 13 oz (1981). The typical-weight and maximum-weight figures found this session were not fully reconciled between sources.
- Longevity
- To about 11-17 years depending on source.
What it gets confused with
- Spotted seatrout
- Has prominent, well-defined round spots that extend onto the tail and second dorsal fin; weakfish's spotting is finer, wavier, and absent from those fins.
- Sand seatrout (Cynoscion arenarius)
- Lacks dark spots entirely, unlike weakfish's diagonal spotted lines.
- Silver seatrout (Cynoscion nothus)
- The bottom half of the tail fin is longer than the top half; weakfish has a more symmetrical tail.
What follows from all of that
Presentation families
Inshore
Live / natural bait suspension
Present a natural food form with enough life or scent to hold in a station without looking mechanical.
- keep it alive or fresh
- match the holding depth
- minimize hardware bulk
- detect without pulling it away
What it asks of the tackle
- Depth control
- High
- Sensitivity
- High
- Casting distance
- Short to moderate
- Weight range
- As light as conditions allow
- Cover resistance
- Moderate
- Line visibility
- Low
- Retie frequency
- High
Tidal drift bait
Let a natural bait travel at the speed of the tide along an edge fish are feeding on.
- match weight to the run
- stay in the seam
- let it swing at the end
- reset up-tide
What it asks of the tackle
- Depth control
- Moderate
- Sensitivity
- High
- Casting distance
- Short to moderate
- Weight range
- 1/8–1 oz
- Cover resistance
- Moderate
- Line visibility
- Low
- Retie frequency
- High
Nearshore
Bottom contact
Keep a bait on or just above the substrate along a break, flat, or inside a weed edge.
- feel bottom
- drag or hop
- pause on the break
- stay in contact
What it asks of the tackle
- Depth control
- High
- Sensitivity
- High
- Casting distance
- Moderate
- Weight range
- 1/8–1/2 oz
- Cover resistance
- High
- Line visibility
- Low
- Retie frequency
- High
Surf
Surf bait soak
Hold a natural bait still on the bottom of a trough or cut and let moving water bring fish to it.
- enough lead to hold
- read the trough
- let the rod load
- reset as the tide moves the bar
What it asks of the tackle
- Depth control
- Low
- Sensitivity
- Moderate
- Casting distance
- Long
- Weight range
- 2–8 oz of lead
- Cover resistance
- Moderate
- Line visibility
- Secondary
- Retie frequency
- High
Horizontal retrieve
Move a swimming bait through a chosen depth band along structure or open water.
- count down
- steady or pulsing retrieve
- keep the band
- cover the edge
What it asks of the tackle
- Depth control
- Moderate
- Sensitivity
- Moderate
- Casting distance
- Moderate to long
- Weight range
- 1/8–1/2 oz
- Cover resistance
- Moderate
- Line visibility
- Low
- Retie frequency
- Low
What moves them for this fish
Reviewed rules that push particular families up when the conditions match. Each one names the conditions it needs and why it exists, so you can disagree with it.
A federal biological report states weakfish feed primarily between dusk and dawn while foraging along the edge of eelgrass beds, so low light at a grass edge is the window this species is actually built to feed in.
When
Inshore · Grass flat · Low light or Night
Moves up
Tidal drift bait, Live / natural bait suspension
Reviewed 2026-08-30
Since the same source ties weakfish feeding primarily to the dusk-to-dawn window, full daylight at the same grass edge is comparatively the weaker part of the cycle for the two presentations built around an active bite there.
When
Inshore · Grass flat · Bright
Moves up
Tidal drift bait, Live / natural bait suspension
Reviewed 2026-08-30
Where every sentence came from
Sources
Agency
Atlantic States Marine Fisheries Commission - Weakfish species page
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
North Carolina DEQ Division of Marine Fisheries - Weakfish species profile
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
NOAA NEFSC Northeast Climate Vulnerability Assessment - Weakfish
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
South Carolina Department of Natural Resources - Weakfish species account
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
Chesapeake Bay Program - Weakfish field guide entry
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
Agency
Florida Fish and Wildlife Conservation Commission - Weakfish profile
Used for habitat, thermal band and presentation families; identification; behaviour; forage; season. Read 2026-08-30, next check 2026-11-27.
A source with no link predates the rule that one has to carry a URL. It is still a real citation and still checkable; it just takes a search rather than a click, and that is worth knowing before you rely on it.