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🌊 Marine Least Concern 🌡️ Tropical

Whitley's silverside

Hypoatherina tropicalis Whitley, 1948
Max Length
12.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
28.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Inhabits waters close inshore. Often seen to jump out of the water, especially after sunset when they appear as fluorescent streaks. At night they appear to aggregate with Atherinomorus capricornensis around One Tree Island (eastern Australia). Probably eaten by larger commercial species .

Scientific Name
Hypoatherina tropicalis
Authority
Whitley, 1948
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
12.5 cm
Trophic Level
3.4
Resilience
High
Vulnerability
28.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6 - 9; Dorsal soft rays (total): 8 - 11; Anal spines: 1; Anal soft rays: 11 - 14. Lips absent. Ascending process of premaxilla, short and broad. Gill rakers in first lower gill arch 18-22. Midlateral scales 39-46. Predorsal scales 17-22. : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Whitley's silverside is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; pelagic-neritic; depth range 0 - ? m . Tropical found around Lord Howe Island.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00575 × L3.15 (TL)
Max TL
12.5cm
Dorsal Spines
8
Dorsal Rays
10
Anal Spines
1
Anal Rays
13

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Whitley, 1948

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Tropical Hardyhead · Whitley's Silverside · Whitley’s Silverside
🌍CES gavún skákavý

Scientific Synonyms

Scientific Name Author Year Status
Atherinomorus tropicalis Whitley 1948 Synonym
Atherinosoma tropicalis Whitley 1948 Synonym
Taeniomembras tropicalis Whitley 1948 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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