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🌊 Marine 🍽️ Edible 🌡️ Tropical

Commerson's anchovy

Stolephorus rex Jordan & Seale, 1926
Max Length
10.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
14.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Commerson's anchovy (Stolephorus rex) is a ray-finned fish of the family Engraulidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 10.4 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. Commercially fished and consumed as food.

Scientific Name
Stolephorus rex
Authority
Jordan & Seale, 1926
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
10.4 cm
Trophic Level
3.3
Resilience
High
Vulnerability
14.00/100
Salinity
30–40 ppt

🐟 Physical Description

This species is distinguished by the following characters: gill rakers of first gill arch 16-19 (modally 18) in upper series and 22-24 (21) in lower series, 39-43 (42) in total; gill rakers on second gill arch, 11-14 (13) in upper series, 20-24 (21) in lower series, 32-38 (35) in total; gill rakers on third gill arch, 9-12 (10) in upper series, 11-15 (13) in lower series, 21-26 (23) in total; gill rakers on fourth gill arch, 7-10 (9) in upper series, 8-12 (11) in lower series, 16-22 (20) in total; gill rakers 3-8 (5) on hind face of third gill arch; prepelvic scutes 2-5 (4); transverse scales 8-9 (8); vertebrae 20-21 (20) + 19-20 (19) = 39-40 (39); maxilla rather long, posterior tip just reaching or slightly beyond posterior margin of preopercle, 19.1-23.1% SL (mean 20.8%), 73.7-87.0% HL (81.2%); predorsal scutes absent; pelvic scute no spine; posterior border of preopercle convex, rounded; two pairs of dark patches on parietal and occipital regions; with a pair of dark lines on dorsum from parietal region to dorsal-fn origin; black spots below eye and lower-jaw tip absent; posterior tip of depressed pelvic fin reaching to vertical through 2nd to 6th dorsal-fin origin; head is short, 24.3-27.6% SL (mean 25.6%) .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Commerson's anchovy is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; pelagic-neritic; depth range 1 - ? m . Tropical West Pacific: India to Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00501 × L3.14 (TL)
Max TL
10.4cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Jordan & Seale, 1926

🍽️ Edibility & Flavour

⚡ Nutrition

Detailed nutritional data for Commerson's anchovy is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Commerson's anchovy 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

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (oily fish average)

Proximate Composition
Energy180 kcal
Moisture68 %
Protein22 %
Total Fat8 %
Ash1.4 %
Fatty Acids (g)
Saturated Fat1.8 g
Monounsaturated Fat2.6 g
Polyunsaturated Fat3.2 g
Omega-3 Total2 g
EPA0.6 g
DHA1.1 g
Omega-6 Total0.6 g
Key Minerals & Vitamins
Calcium15 mg
Iron0.9 mg
Magnesium28 mg
Phosphorus235 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium35 µg
Vitamin D550 IU
Vitamin B3 (Niacin)8 mg
Vitamin B123.2 µg

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