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Diadromous Least Concern 🌡️ Tropical

Walton's mudskipper

Periophthalmus waltoni Koumans, 1941
Max Length
15 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Facultative air-breathing ; Found on mud flats. Amphibious air-breather . Feeds on variety of ocypodid crabs .

Scientific Name
Periophthalmus waltoni
Authority
Koumans, 1941
Habitat
Diadromous
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
15 cm
Trophic Level
3.2
Resilience
High
Vulnerability
19.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Gobiiformes
Gobiiformes
Family
Gobiidae
Gobiidae
Genus
Periophthalmus
Periophthalmus
Species
Walton's mudskipper
Periophthalmus waltoni

🐟 Physical Description

Dorsal spines (total): 10 - 13; Dorsal soft rays (total): 12 - 13; Anal spines: 1; Anal soft rays: 10 - 11. Distinguished by the following characteristics: moderate to strong frenum uniting pelvic fins; medially, pelvic fins united for about one half their length; D I height moderate, its margin slightly rounded, no stripe on fin with only a few white spots posteriorly, no elongate spines; D2 with single dusky stripe inframarginally; dorsal fins not connected by membrane; D I with 10-13 spines; longitudinal scale count 91-121; head width 13.7-21.9% SL; pelvic fin length 11.8-13.9% SL; length of anal fin base 16.2-21.0% SL; length ofD2 base 23.2-27.2% SL; total D2 elements 13-14; total anal fin elements 11-12; TRDB 21-28 .: fusiform / normal.

🌀 Behaviour

Behavioural data for Walton's mudskipper is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
12cm TL

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal. Tropical Indian Ocean: Persian Gulf to Pakistan.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Trophic Level
3.2±0.4
Food Items

variety of ocypodid crabs (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L2.97 (TL)
Max TL
15cm
Dorsal Spines
12
Dorsal Rays
13
Anal Spines
1
Anal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Koumans, 1941

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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