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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Bathygobius Lacertus

Bathygobius lacertus Poey, 1860
Max Length
7.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
18.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Exhibits diversity of habitat preference, from shallow warm pools formed in limestone on exposed beaches with moderate wave action, from sheltered intertidal pools on rock and pebble shorelines of bays or coves, on reef crests, and over silt and mud around mangrove roots .

Scientific Name
Bathygobius lacertus
Authority
Poey, 1860
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.7 cm
Trophic Level
3.5
Resilience
High
Vulnerability
18.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. Diagnosis: Pectoral fin rays 18-20 (modally 19); lateral scale rows 38-42; upper jaw length 12.5-15.9 % SL; first dorsal fin with 1-4 dark blotches on each spine, producing 1-4 distinct longitudinal stripes of pigment, stripes fading distally; predorsal squamation reaching anteriorly to vertical through posterior margin of preopercle, sometimes extending slightly beyond this point or falling short just short of it, rarely reaching postorbital spots; trunk with two offset rows of 6-7 dark blotches ventrally, often forming distinctive pattern resembling alternating dark squares on a checkerboard; first row positioned just below lateral midline and extending from beneath pectoral fin to caudal fin base; second row of spots offset from first, positioned just above ventral midline and extending from beneath pectoral fin to caudal fin base; spots in lower row typically more diffuse than spots in upper row, becoming more diffuse posteriorly .: elongated.

🌀 Behaviour

Behavioural data for Bathygobius Lacertus 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; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
7.7cm
Dorsal Spines
7
Dorsal Rays
9
Anal Spines
1
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
18.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Poey, 1860

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