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🌊 Marine Critically Endangered 🌡️ Tropical

Walea pygmy seahorse

Hippocampus waleananus Gomon & Kuiter, 2009
Max Length
1.8 cm
Max Weight
Lifespan
Trophic Level
3
Depth
5–20 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
Depth Zone

📖 Overview

Found in association with the soft coral Nephtea, but has also been observed swimming lengthy distances from one coral to the next (Ref 90102).

Scientific Name
Hippocampus waleananus
Authority
Gomon & Kuiter, 2009
Habitat
Marine
Climate
Tropical
Body Shape
Other
IUCN Status
CR
Max Length
1.8 cm
Depth Range
5–20 m
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 12. This species is distinguished by the following characters: size extremely small (height 1.68 cm, 1.78 cm SL); trunks rings 12; tail elongate, 32 tail rings; D 12; pectoral fin rays 9; no anal fin (at least in one sex); apparently eggs brooded within trunk; medium length snout which lacks a bulbous tip; coronet raised and angular; fused gill openings on midline behind the coronet supported by raised cleithral girdle; enlarged knob-like structures on head and trunk; paired laterally directed knob-like structures and each with short fleshy filament on superior trunk ridge of the fifth trunk ring; last 28 tail rings each with small paired knobs on inferior tail ridge, fifth, ninth and twelfth tail rings with bilaterally paired enlarged knob-like structures on superior tail ridges. Colouration: pale pinkish to yellowish with red to brown blotches, radiating bands from eye; body protuberances are white, appearing as white spots .: other; Cross section: angular.

🌀 Behaviour

Behavioural data for Walea pygmy seahorse is currently being reviewed.

🦐 Diet

Diet information for Walea pygmy seahorse is currently being compiled.

🥚 Reproduction

Male carries the eggs in a brood pouch .

🌍 Habitat & Distribution

Marine; benthopelagic; non-migratory; depth range 5 - 20 m . Tropical Central Pacific: Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine
Migration
Non-migratory
Trophic Level
3±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00447 × L3 (TL)
Max TL
1.8cm
Dorsal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Other
Climate Zone
Tropical
Described By
Gomon & Kuiter, 2009

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