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🌊 Marine Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Longfin African conger

Conger cinereus Rüppell, 1830
Conger Cinereus (Conger cinereus)
Conger Cinereus (Conger cinereus)
Max Length
140 cm
Max Weight
-
Lifespan
-
Trophic Level
4.3
Depth
0–80 m
Climate
Tropical
Resilience
Low
Vulnerability
68.00/100
Typical Length
50 cm
Depth Zone
reef

📖 Overview

Solitary species common on reef flats and seagrass beds of shallow lagoons but ranges to depths of 80 m on outer reef slopes . Also found in estuaries . Feeds on fish and crustaceans at night, assuming a pattern of broad dark grey bars . Minimum depth reported taken from Ref. 86942.

Scientific Name
Conger cinereus
Authority
Rüppell, 1830
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
140 cm
Depth Range
0–80 m
Latitude
47°S – 32°N
Trophic Level
4.3
Resilience
Low
Vulnerability
68.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Anguilliformes
Anguilliformes
Family
Congridae
Congridae
Genus
Conger
Conger
Species
Longfin African conger
Conger cinereus

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0; Vertebrae: 139 - 146. Flanges on upper and lower lips well developed; 2 rows of teeth in jaws, those of outer row larger; closely set and compressed to form cutting edge; 6th infraorbital pore located close behind and slightly above posterior angle of jaw. Dorsal fin begins over middle of appressed pectoral fin. Brownish grey, yellow below and on fins, median fins with narrow black edge, black patch on lower rear edge of eye and on pectorals ; assumes a pattern of broad dark bands at night (see also Ref. 4538, 1602). Body depth at gill opening 17-23 in TL .: eel-like; Cross section: circular.

🌀 Behaviour

Conger cinereus is generally nocturnal, and tends to be solitary, remaining concealed in crevices, sand, or rubble during the day. After dark, it emerges to feed, sometimes remaining still in exposed spots when illuminated. Its diet consists largely of small fish and crustaceans, though it may scavenge on occasion.

🦐 Diet

Diet information for Longfin African conger is currently being compiled.

🥚 Reproduction

Reproduction data for Longfin African conger is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 0 - 80 m . Tropical; 32°N - 47°S, 24°E - 140°W East Africa to the Marquesan and Easter islands, north to southern Japan and the Ogasawara Islands, south to northern Australia and Lord Howe Island; except in Hawaii, where former subspecies C.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
4.3±0.5
🧍 Solitary
Food Items

fish and crustaceans at night, assuming a pattern of broad dark grey bars (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00059 × L3.21 (TL)
Max TL
140cm
Vertebrae
143

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Trophic Level
4.3
Apex / Top predator
Climate Zone
Tropical
Latitude Range
32°N – 47°S
Described By
Rüppell, 1830

🍽️ Edibility & Flavour

"Longfin African conger is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 19.1 g
Omega-3 (total) 114 mg

🔬 Mercury Safety

Mercury data for Longfin African conger has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Conger altipinnis Kaup 1856 Synonym
Conger cinereus cinereus Rüppell 1830 Synonym
Conger flavipinnatus Bennett 1832 Synonym
Leptocephalus caudalis Rüppell 1871 Synonym
Leptocephalus cinereus Rüppell 1830 Synonym
Veternio verrens Snyder 1904 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 33 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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