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Diadromous Endangered 🌡️ Temperate

Neosalanx Reganius

Neosalanx reganius Wakiya & Takahashi, 1937
Max Length
7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Inhabits the tidal areas of the rivers above the salt front, 16-20 km upstream from the river mouth and sometimes found in areas with low seawater concentrations . Planktivorous fish. Feed on calanoid copepod, Sinocalanus sinensis which is the most dominant prey item; cyclopoids, Daphniasp. and decapod mysid .

Scientific Name
Neosalanx reganius
Authority
Wakiya & Takahashi, 1937
Habitat
Diadromous
Climate
Temperate
Body Shape
Elongated
IUCN Status
EN
Max Length
7 cm
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Migration
Anadromous
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 52 - 56. : elongated.

🌀 Behaviour

Behavioural data for Neosalanx Reganius is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; anadromous . Temperate; 33°N - 32°N

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Anadromous
Trophic Level
3.1±0.2
Food Items

calanoid copepod, Sinocalanus sinensis which is the most dominant prey item; cyclopoids, Daphniasp

📐 Morphometrics

Length–Weight Relationship: W = 0.00229 × L3.15 (TL)
Max TL
7cm
Vertebrae
54

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Wakiya & Takahashi, 1937

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