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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Temperate

Tonguetied minnow

Exoglossum laurae Hubbs, 1931
Max Length
16 cm
Max Weight
-
Lifespan
4 yrs
Trophic Level
2.9
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
31.00/100
Typical Length
10 cm
Depth Zone
demersal

📖 Overview

Adults inhabit rocky pools and runs of creeks and small to medium rivers, often near vegetation or other cover. Males construct large circular or rectangular nests by piling pebbles carried in the mouth . Migratory behaviour is undetermined .

Scientific Name
Exoglossum laurae
Authority
Hubbs, 1931
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
16 cm
Lifespan
4 years
Trophic Level
2.9
Resilience
Medium
Vulnerability
31.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Anal soft rays: 7. Exoglossum laurae is distinguished by the following characters: central body plate with fleshy lobe to either side on lower jaw; body chubby and barely compressed; deep caudal peduncle; dorsal fin origin over pelvic fin origin; snout round, mouth sub-terminal; thick upper lip thinner at middle; premaxillary frenum present; usually a small barbel near corner of mouth; complete lateral line with 47-53 scales; 7 anal rays; pharyngeal teeth 1,4-4,1. Body color olive-gray above, silver green-purple side; fins clear to light olive or light red; and small individuals with dusky stripe along side and onto snout, black caudal spot .: elongated.

🌀 Behaviour

Behavioural data for Tonguetied minnow is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Temperate; 43°N - 36°N West Virginia, Virginia and North Carolina; and Great Miami and Little Miami River systems in Ohio.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L3.06 (TL)
Max TL
16cm
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Temperate
Described By
Hubbs, 1931

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Tonguetied Minnow
🌍CES jeleček severoamerický
🇷🇺Russian Гольян лауры

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 22 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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