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Diadromous Data Deficient 🌡️ Tropical

Reeves shad

Tenualosa reevesii Richardson, 1846
Max Length
61.6 cm
Max Weight
5.0 kg
Lifespan
8 yrs
Trophic Level
3.2
Depth
0–50 m
Climate
Tropical
Resilience
Medium
Vulnerability
34.00/100
Typical Length
40 cm
Depth Zone
pelagic

📖 Overview

Schooling in coastal waters and ascending rivers to breed. Adults are found near the surface at sea while larvae and juveniles spend the first two years of their life in river tide pools and estuaries . Feed on planktonic crustaceans like cyclopoids and other copepods, and rotifers .

Scientific Name
Tenualosa reevesii
Authority
Richardson, 1846
Habitat
Diadromous
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
61.6 cm
Max Weight
5 kg
Lifespan
8 years
Depth Range
0–50 m
Trophic Level
3.2
Resilience
Medium
Vulnerability
34.00/100
Migration
Anadromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 3; Dorsal soft rays (total): 14 - 15; Anal spines: 2; Anal soft rays: 16 - 18; Vertebrae: 44 - 45. Belly with 29 to 34 scutes. Head large; a median notch in upper jaw, which distinguishes it from other similar clupeids, except Hilsa kelee; with a well developed sebaceous eyelids. Gill rakers fine and numerous, each raker with scattered asperities. Caudal fin deeply forked with minute scales. A dark blotch behind gill opening and a series of spots along flank. Color: Metallic blue-green back that lightens to silver along the sides .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Reeves shad is currently being reviewed.

🦐 Diet

Diet information for Reeves shad is currently being compiled.

🥚 Reproduction

Size at Maturity
47.5cm TL

Ascend rivers to breed . After spawning, the adults go back to the sea while the larvae stay in river mouths during their first year. At the beginning of their second year, the juveniles swim to the sea .

🌍 Habitat & Distribution

Marine; freshwater; brackish; pelagic-neritic; anadromous ; depth range 0 - 50 m . Tropical; 31°N - 5°N, 95°E - 123°E Northwest Pacific: China and possibly southward into South China Sea, but records uncertain.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish 🐟 Pelagic
Migration
Anadromous
Trophic Level
3.2±0.29
🐠 Schooling
Food Items

planktonic crustaceans like cyclopoids and other copepods, and rotifers (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01072 × L3.05 (TL)
Max TL
61.6cm
Max Weight
5,000g
Dorsal Spines
3
Dorsal Rays
15
Anal Spines
2
Anal Rays
17
Vertebrae
45

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Richardson, 1846

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