Atlantic goliath grouper
📖 Overview
A solitary species occurring in shallow, inshore areas. Found on rock, coral, or mud bottoms . Juveniles found in mangrove areas and brackish estuaries . Large adults may be found in estuaries . Adults appear to occupy limited home ranges with little inter-reef movement. Feeds primarily on crustaceans, particularly spiny lobsters as well as turtles and fishes, including stingrays. Territorial near its refuge cave or wreck where it may show a threat display with open mouth and quivering body. Larger individuals have been known to stalk and attacks divers. Over-fished, primarily by spear fishing . Marketed fresh and salted. Meat is of excellent quality. Important game fish . Reported to reach weights of more than 315 kg .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 11; Dorsal soft rays (total): 15 - 16; Anal spines: 3; Anal soft rays: 8. Distinguished by the following characteristics: brownish yellow, grey or greenish body color; head and dorsal part of body and fins with small black spots; body robust and elongate; body depth contained 2.7-3.4 times in SL; HL 2.3-2.9 in SL; extremely broad head; flat interorbital; rounded preopercle, finely serrate; round nostrils, subequal; maxilla scaly, reaching well past eye; 3-5 rows of subequal teeth on midlateral part of lower jaw; absence of canines at front jaw ; further characterized by having opercle with 3 flat spines, middle one the largest. Pelvic fins smaller than the pectorals. Bases of soft dorsal and anal fins covered with scales and thick skin. Juveniles tawny with irregular vertical bands.: fusiform / normal; Cross section: compressed.
🌀 Behaviour
Behavioural data for Atlantic goliath grouper is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; brackish; reef-associated; depth range 0 - 100 m , usually ? - 46 m . Subtropical; 36°N - 33°S, 121°W - 12°E
🌿 Ecology
crustaceans, particularly spiny lobsters as well as turtles and fishes, including stingrays
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
⚠️ Venom Profile
- immediate intense pain
- swelling
- erythema
- occasional nausea and weakness
Analgesia; wound care; tetanus prophylaxis; severe cases may require monitoring for systemic effects.
References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature
🎣 Angling Guide
- medium-heavy 7ft spinning rod
- 30-50 lb braid
- fluorocarbon leader
- grass flats
- oyster bars
- marsh drains
- deeper channel edges
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🏆 World Records
| Record Type | Value | Angler | Location | Date | Line Class |
|---|---|---|---|---|---|
| Weight | 308.44 kg | Lynn Joyner | Fernandina Beach, Florida | 20 May 1961 | ALL |
Source: IGFA All-Tackle World Records database
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| ? itaiara | Lichtenstein | 1822 | Synonym |
| Epinephalus itajara | Lichtenstein | 1822 | Synonym |
| Promicrops ditobo | Roux & Collignon | 1954 | Heterotypic |
| Promicrops esonue | Ehrenbaum | 1915 | Heterotypic |
| Promicrops itaiara | Lichtenstein | 1822 | Synonym |
| Promoicrops itaiara | Lichtenstein | 1822 | Synonym |
| Serranus galeus | Müller & Troschel | 1848 | Heterotypic |
| Serranus guasa | Poey | 1860 | Synonym |
| Serranus itajara | Lichtenstein | 1822 | Synonym |
| Serranus mentzelli | Valenciennes | 1828 | Heterotypic |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 759 records indexed .
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