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🌊 Marine Least Concern 🌡️ Tropical

Pearl goby

Istigobius spence Smith, 1947
Max Length
7.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
1–12 m
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Overview information for Pearl goby is currently being compiled by our editorial team.

Scientific Name
Istigobius spence
Authority
Smith, 1947
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
7.9 cm
Depth Range
1–12 m
Latitude
40°S – 15°N
Trophic Level
3.3
Resilience
High
Vulnerability
19.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Anal spines: 1; Anal soft rays: 9 - 10; Vertebrae: 26. Pectoral fin rays entire. Predorsal cycloid scale 7-10, ctenoid on trunk. Few spots on nape; a dusky line running from eye dorsal to sensory pore path, ending at or before pectoral fin base; wavy brown lines on the snout. Pelvic and distal part of anal fins darker in males than in females. Appressed anal fin reaching within a distance of 1-2 scales of caudal fin in male, 2-4 scales in female; appressed 2nd dorsal slightly overlapping caudal in male. Some males exhibit 3-4 vertical bars on abdomen and 2-3 horizontal bars in 1st dorsal fin ; longitudinal scale series 30-32; no scales on cheek and opercle; body depth 4.9-6.1 in SL .: fusiform / normal; Cross section: circular.

🌀 Behaviour

Behavioural data for Pearl goby is currently being reviewed.

🦐 Diet

Diet information for Pearl goby is currently being compiled.

🥚 Reproduction

Genital papilla of male reaching anal spine. Female genital papilla truncate, ending well before origin of anal fin.

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 1 - 12 m . Tropical; 15°N - 40°S

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.01 (TL)
Max TL
7.9cm
Dorsal Spines
7
Dorsal Rays
11
Anal Spines
1
Anal Rays
10
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
15°N – 40°S
Described By
Smith, 1947

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