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Diadromous Data Deficient 🌡️ Subtropical

Stiphodon Multisquamus

Stiphodon multisquamus Wu & Ni, 1986
Max Length
8 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults inhabit clear streams and mainly feed on epiphyte and biofilm on rocks in the wild. Due to its possible amphidromous nature, as known to occur with its congeners (adults live and breed in freshwater streams; larvae hatched drift downstream and develop in marine environments; juveniles return to freshwater streams), blockage of the migration pathway (e.g. construction of dam or culvert in streams) would cause a significant impact on this species. Ensuring no net loss of habitat, keeping the natural stream flow and maintaining the stream-ocean corridor are all essential for preserving this species (based on researches on its congeners; see Ref. 82683, 82684, 82685, 82689, 82690, 82692). Collection conducted by aquarium hobbyists (both private and commercial) also poses a serious threat to Stiphodon species in some regions and this kind of activity should be strictly controlled .

Scientific Name
Stiphodon multisquamus
Authority
Wu & Ni, 1986
Habitat
Diadromous
Climate
Subtropical
Body Shape
Elongated
IUCN Status
DD
Max Length
8 cm
Resilience
High
Vulnerability
19.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 10. This species is a large-sized Stiphodon with the pectoral fin spotted and sexual dimorphism obvious. Mature male has the upper one-third of the body khaki and lower part silvery grey/ grayish brown (some individuals would be darker in colour) with 9-10 lateral bars, first dorsal fin elongated, triangular and sometimes filamentous, predorsal midline without scales or with very few scales (certain individuals would have some scales); while the female has creamy with two obvious transverse stripes on the body, sometimes with several dull lateral bars, dorsum with several gold bars, ventrum light blue.: elongated.

🌀 Behaviour

Behavioural data for Stiphodon Multisquamus 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; benthopelagic; amphidromous. Subtropical South China (probably endemic to China).

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Migration
Amphidromous
Food Items

epiphyte and biofilm on rocks in the wild

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
8cm
Dorsal Spines
7
Dorsal Rays
9
Anal Spines
1
Anal Rays
10

🌡️ 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
19.00/100
Low vulnerability
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Wu & Ni, 1986

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