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🌊 Marine Data Deficient 🍽️ Edible 🌡️ Tropical

Pacific menhaden

Ethmidium maculatum Valenciennes, 1847
Max Length
31.2 cm
Max Weight
Lifespan
Trophic Level
2.1
Depth
0–50 m
Climate
Tropical
Resilience
High
Vulnerability
35.00/100
Typical Length
Depth Zone
pelagic

📖 Overview

Occurs in coastal waters, forming large schools. Feeds by filtering phytoplankton (diatoms) and zooplankton (especially copepods), but will also take small fishes and crustaceans. Breeds in spring (Chile), depositing its eggs in coastal waters on sand, to which the sticky eggs cling, the larvae rising and joining the surface plankton on hatching. Marketed fresh, frozen, or canned.

Scientific Name
Ethmidium maculatum
Authority
Valenciennes, 1847
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
31.2 cm
Depth Range
0–50 m
Trophic Level
2.1
Resilience
High
Vulnerability
35.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 12 - 15. Scutes present along back (before dorsal fin) as well as along belly. Upper jaw with median notch. Gill rakers fine and slender, about 130 to 150 in lower limb. Anal fin short, well behind last dorsal fin ray. Scales with pectinated hind border. A dark spot behind gill cover and up to 4 series of vertically oval spots along flank.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Pacific menhaden is currently being reviewed.

🦐 Diet

Diet information for Pacific menhaden is currently being compiled.

🥚 Reproduction

Size at Maturity
25.4cm TL

🌍 Habitat & Distribution

Marine; pelagic-neritic; depth range 0 - 50 m . Tropical; 0° - 37°S, 86°W - 70°W Southwest Pacific: Peru (Puerto Pizarro in Gulf of Guayaquil to Callao and Pisco Bay; presumably to border with Chile, but no records) and Chile (whole coast south to Talcahuano).

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
2.1
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00692 × L3.15 (TL)
Max TL
31.2cm
Anal Rays
14

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
35.00/100
Low vulnerability
Trophic Level
2.1
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Valenciennes, 1847

🍽️ Edibility & Flavour

"Pacific Menhaden 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 18.5 g
Omega-3 (total) 328 mg

🔬 Mercury Safety

Mercury data for Pacific menhaden 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

Language Common Names
🇬🇧English Menhaden · Pacific menhaden · Shad
🌍CES placka zdobená
🇫🇷French Menhaden du Pacifique
🇵🇹Portuguese Menhadem-do-Pacífico-sudeste
🇷🇺Russian Перуанская мачета
🇪🇸Spanish Machete · Machuelo · Tritr · Tritre

Scientific Synonyms

Scientific Name Author Year Status
Alausa coerulea Valenciennes 1847 Heterotypic
Alausa maculata Valenciennes 1847 Synonym
Brevoortia maculata Valenciennes 1847 Synonym
Brevoortia maculata chilcae Hildebrand 1946 Synonym
Clupea maculata Valenciennes 1847 Synonym
Clupea notacanthoides Steindachner 1869 Synonym
Clupea notacanthus Günther 1868 Synonym
Ethmidium chilcae Hildebrand 1946 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 6 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Pacific menhaden ↗
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