New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine 🌡️ Tropical

Hawaiian surf sardine

Iso hawaiiensis Gosline, 1952
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
0–2 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Inhabits rough surf and waves around rocky headlands and reefs. Nothing is known of the biology of this species .

Scientific Name
Iso hawaiiensis
Authority
Gosline, 1952
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
5 cm
Depth Range
0–2 m
Latitude
28°S – 28°N
Trophic Level
3.1
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 14 - 16; Anal spines: 1; Anal soft rays: 20 - 25. Teeth in jaws restricted to first third along free edge of premaxilla. Dorsal edge of opercle without notch and process .: elongated.

🌀 Behaviour

Behavioural data for Hawaiian surf sardine is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; pelagic-neritic; depth range 0 - 2 m . Tropical; 28°N - 28°S Pacific Ocean: Marshall Islands, Hawaii and Rapa.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
5cm
Dorsal Spines
6
Dorsal Rays
15
Anal Spines
1
Anal Rays
23

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Latitude Range
28°N – 28°S
Described By
Gosline, 1952

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Hawaiian surf sardine ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.