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🌊 Marine 🌡️ Tropical

Mercer's tusked silverside

Dentatherina merceri Patten & Ivantsoff, 1983
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Found close inshore around islands and over coral reefs. Except for larval biology, little is known about this species. It may be taken as food by commercial species. This species is now placed under family Dentatherinidae in Parenti (1984 ?).

Scientific Name
Dentatherina merceri
Authority
Patten & Ivantsoff, 1983
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
5 cm
Trophic Level
3.1
Vulnerability
10.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6 - 9; Dorsal soft rays (total): 12 - 14; Anal spines: 1; Anal soft rays: 14 - 16. Labial ligament to about halfway along premaxilla forming cylindrical pouch lateral to ramus of dentary and just below edge of premaxilla. Premaxilla with ventrally directed tusk-like process. Caudal peduncle very slender. Midlateral scales 40-43; transverse scale rows 7 to 9; interdorsal scales 8-12. : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Mercer's tusked silverside 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; pelagic-neritic; non-migratory. Tropical Central Pacific: Philippines to north-eastern Australia and from Moluccas to the Trobriand Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Migration
Non-migratory
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
5cm
Dorsal Spines
8
Dorsal Rays
13
Anal Spines
1
Anal Rays
15

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Patten & Ivantsoff, 1983

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Mercer's Tusked Silverside · Tusked Silverside

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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