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Diadromous Endangered 🌡️ Tropical

Lipstick goby

Sicyopus jonklaasi Axelrod, 1972
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
0–2 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults are found in rocky mid-hill streams with fast flowing water. They adhere to the sides of submerged rock through sucking discs. Occur usually in water 50-150 cm deep. Carnivore. Sudden, heavy rainfall with an accompanying drop in water temperature induces spawning, usually in a cavity excavated in sand in the shelter of a stone. Eggs hatch in the event of another heavy rainfall. Larvae are swept downriver to the sea, mature adults migrate upstream to spawning grounds. Possibly amphidromous .

Scientific Name
Sicyopus jonklaasi
Authority
Axelrod, 1972
Habitat
Diadromous
Climate
Tropical
IUCN Status
EN
Max Length
4.5 cm
Depth Range
0–2 m
Resilience
High
Vulnerability
10.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Lipstick goby is currently being compiled.

🌀 Behaviour

Behavioural data for Lipstick goby 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; pH range: 7.0 - ? ; dH range: 5 - ?; amphidromous ; depth range 0 - 2 m. Tropical; 7°N - 6°N known from a fast flowing stream in Atweltota, in the middle catchment of the Kalu River, Sri Lanka.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Migration
Amphidromous
Feeding Mode
Carnivore

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
4.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Climate Zone
Tropical
Described By
Axelrod, 1972

👥 Community & Contribute

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