SURPhDx
Surf Angler Decision Support

Sheepshead

Archosargus probatocephalus (Walbaum, 1792)

  • active
  • inshore tier
  • pass zone
  • Sparidae

Sheepshead hold in 50–88°F water (optimum 66°F) and 5–36 PSU salinity. Diurnal feeder: A structure grazer with incisor- and molar-like teeth. Nibbles and crushes barnacles, mussels, oysters and crabs off pilings and rock. A light, tentative biter: the "bait stealer". Seasonal migrant: Inshore around docks, bridges and oyster bars most of the year. From January fish gather in the lower estuaries around deep structure, then spawn February–April near the coast at jetties, passes and nearshore reefs before scattering for the summer. Spawns Feb–Apr (late winter-spring).

Research record v2026-10-18baseline

Migration calendar

5 phases · October marked
  1. January · Winter · staging · 0.70
  2. February · Spawn · 60-73°F · 1.00
  3. March · Spawn · 60-73°F · 1.00
  4. April · Spawn · 60-73°F · 1.00
  5. May · Summer · scattered · 0.35
  6. June · Summer · scattered · 0.35
  7. July · Summer · scattered · 0.35
  8. August · Summer · scattered · 0.35
  9. September · Summer · scattered · 0.35
  10. October · Fall return · 0.55
  11. November · Fall return · 0.55
  12. December · Winter · staging · 0.70
prime ≥ 0.80fair 0.45–0.79slow < 0.45this month
  1. Winter · staging
    0.70
  2. Spawning run
    0.85
  3. Summer · scattered
    0.35
  4. Fall return
    0.55
  5. Spawn · 60-73°F
    1.0060–73°F

Current phase · live · SGI East

Fall returnfair · 0.55

Fish move back onto inshore structure as fronts cool the bay.

Months Oct–Nov

Prey · what they eat

3 items · season vs October
  1. 1

    barnacles

    primary · crustacean · Amphibalanus spp.; Balanus spp.

    Diet share
    —
    No season data
    Bait equivalents
    fiddler crab, sand flea, fresh dead shrimp, barnacle scrapings (chum)
    Season
    No peak months on file
    Vulnerable when
    • High on rising / high slack tide in calm-to-moderate surf
    • Moderate on falling / low slack tide

    Crustaceans rank first in Gulf sheepshead diets, and on pilings and jetty rock that means barnacles. — Overstreet & Heard 1982; SC DNR sheepshead profile

  2. 2

    oysters, mussels & estuarine clams · shellfish

    secondary · mollusk · Crassostrea virginica; Rangia cuneata; Ischadium recurvum

    Diet share
    —
    No season data
    Bait equivalents
    fresh clam, fresh dead shrimp, shucked oyster, Fishbites clam
    Season
    No peak months on file
    Vulnerable when
    • High on rising / falling tide in calm-to-moderate surf
    • Moderate on high slack / low slack tide

    Mussels, small oysters and clams grazed off shell and pilings. — SC DNR sheepshead profile; Overstreet & Heard 1982

  3. 3

    mud crabs & fiddler crabs · fiddlers

    tertiary · crustacean · Panopeidae (mud crabs); Minuca, Leptuca and Uca spp. (fiddler crabs)

    Diet share
    —
    In season
    Bait equivalents
    fiddler crab, cut blue crab, sand flea
    Season
    Peak Apr–Oct · lull Dec–Feb
    Vulnerable when
    • High on rising / high slack tide in calm-to-moderate surf
    • Low on low slack tide

    Crabs from the oyster shell and marsh edge. A live fiddler is the best sheepshead bait. — SC DNR sheepshead profile

Behaviour & biology

8 citations
Water temp
50–88°F
optimum 66°F
Salinity
5–36 PSU
Feeding
diurnal
Typical size
12–18"
max 36" total
Lifespan
20 yr
mature at 2 yr
Group feeding
none documented

A structure grazer with incisor- and molar-like teeth. Nibbles and crushes barnacles, mussels, oysters and crabs off pilings and rock. A light, tentative biter: the "bait stealer".

Field notes

  • Adults eat mainly mussels, clams, small oysters, barnacles and crabs; juveniles lean toward bivalves and crabs.

    — SC DNR sheepshead profile

  • In Mississippi Sound the diet ranked crustaceans, molluscs, polychaetes and fishes. Fish over about 14 inches add more crustaceans.

    — Overstreet & Heard 1982; Louisiana Sea Grant summary

  • On the northern Gulf, fish gather in the lower estuaries around deep structure from January and do most of their spawning in February–March.

    • migration phase: spawning run

    — Alabama DCNR (D. Rainer)

  • Spawning aggregations form around jetties, channel passes and reefs in roughly 62–73°F water.

    • water temp ≤ 73°F
    • water temp ≥ 60°F

    — NC Sea Grant; GCFI 69:103

  • A structure fish: a crab or barnacle dropped tight to the pilings outfishes any open-sand cast, and moving water over the rocks helps.

    • spot has structure: true

    — angler heuristic — unverified

Group feeding

Loose groups hold on each piling or rock pile. Spawning-season schools of big fish gather at the jetties and bridge footings.

Size classes

Small fish stay on docks and pilings in summer. Large "convicts" are mostly on jetties, bridges and nearshore reefs in late winter and spring.

Schooling by phase

winter staging
Fish gathering on deep structure in the lower bays
spawning run
Schools of big fish on jetties, bridge footings and nearshore reefs
summer
Small fish scattered on docks and pilings; big fish offshore
fall return
Fish moving back onto inshore structure as the water cools

Citations

  1. [1]SC DNR sheepshead profile; Overstreet & Heard 1982 · diet
  2. [2]Alabama DCNR; GCFI 69:103; NC Sea Grant · spawning aggregation
  3. [3]Louisiana Sea Grant sheepshead profile; Florida Museum species profile · max age ~20 yr (SC DNR lists ~25 yr)
  4. [4]FishBase SpecCode 441 · max size 91 cm TL; common 35 cm
  5. [5]Louisiana Sea Grant sheepshead profile · spawning Feb-Apr, mostly the last two months; offshore near the coast; multiple batches
  6. [6]NC Sea Grant Hook, Line & Science; GCFI 69:103 (Port Aransas jetties) · spawning temps NC aggregations at 62-70°F bottom water; Texas at 20-23°C SST
  7. [7]Alabama DCNR (D. Rainer) · aggregation timing northern gulf aggregate from January; most spawning Feb-Mar
  8. [8]not retrieved · maturity unverified — age 2 is a placeholder

Regulations

Florida Statewide
Season
Open
Size
12" min total
Daily bag
8 / harvester
Zone
Florida Statewide (STATEWIDE)Zone for SGI East End.
Bag notes
50 fish per vessel per trip during March and April.
Permit
saltwater_license
Verified
Oct 18, 2026 · effective Jul 1, 2018

Verify with FWC before you keep fish

Rules change mid-season and this card is only as fresh as its last verification.

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