Blue sea chub
📖 Overview
Found in aggregations over hard, algal coated bottoms of exposed, surf-swept outer reef flats, lagoon and seaward reefs, to a depth of at least 24 m . Benthopelagic . Juveniles associated with floating material . Mainly herbivorous, feeding on seaweed and associated invertebrates . Appear to be more commonly involved in hallucinogenic fish poisoning than most other related species . Caught with other types of artisanal gear. Minimum depth reported taken from Ref. 128797.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 11; Dorsal soft rays (total): 11 - 12; Anal spines: 3; Anal soft rays: 11 - 12. : fusiform / normal; Cross section: compressed.
🌀 Behaviour
Behavioural data for Blue sea chub is currently being reviewed.
🦐 Diet
🥚 Reproduction
Oviparous .
🌍 Habitat & Distribution
Marine; reef-associated; depth range 0 - 45 m . Tropical; 35°N - 30°S, 30°E - 140°W East Africa to the Hawaiian, Line and Tuamoto islands, north to southern Japan, south to Australia.
🌿 Ecology
📐 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 |
|---|---|---|---|
| - | - | - |
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Cantharus maculatus | Valenciennes | 1830 | Synonym |
| Khyphosus cinerascens | Forsskål | 1775 | Synonym |
| Kyphosus cinerescens | Forsskål | 1775 | Synonym |
| Kyphosus indicus | Cuvier | 1831 | Synonym |
| Kyphosus tahmel | Forsskål | 1775 | Synonym |
| Pachymetopon squamosum | Alleyne & Macleay | 1877 | Synonym |
| Pimelepterus altipinnis | Cuvier | 1831 | Synonym |
| Pimelepterus altipinnoides | Guichenot | 1863 | Synonym |
| Pimelepterus cinerascens | Forsskål | 1775 | Synonym |
| Pimelepterus dussumieri | Cuvier | 1831 | Synonym |
| Pimelepterus indicus | Cuvier | 1831 | Synonym |
| Pimelepterus raynaldi | Cuvier | 1831 | Synonym |
| Pimelepterus tahmel | Forsskål | 1775 | Synonym |
| Sciaena cinerascens | Forsskål | 1775 | Synonym |
| Sciaena tahmel | Forsskål | 1775 | Synonym |
| Scorpis vinosa | Alleyne & Macleay | 1877 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 12 records indexed .
👥 Community & Contribute
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