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💧 Freshwater Least Concern 🌡️ Subtropical

Least madtom

Noturus hildebrandi Bailey & Taylor, 1950
Max Length
6.9 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Subtropical
Resilience
High
Vulnerability
11.00/100
Typical Length
3.7 cm
Depth Zone
demersal

📖 Overview

Adults inhabit mixed rock and sand riffles and runs of clear lowland creeks and small rivers. Often found near debris . They feed on midge and caddis larvae, together with mayfly and stonefly nymphs .

Scientific Name
Noturus hildebrandi
Authority
Bailey & Taylor, 1950
Habitat
Freshwater
Climate
Subtropical
IUCN Status
LC
Max Length
6.9 cm
Trophic Level
3.2
Resilience
High
Vulnerability
11.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Anal soft rays: 12 - 17. Body slender; head flat. Adipose fin white or clear; pectoral fin short with 4-5 large sawlike teeth on rear edge; absence or presence of small teeth on front edge; rear edge of caudal fin straight or with slightly rounded corners; adipose and caudal fins broadly joined with tiny notch between. Color geographically variable. There are 2 subspecies: Noturus hildebrandi latus with shorter head and with 4 white or light yellow oval areas on uniform red-brown to black back; is strongly bicolored with brown to black upper side, white or yellow below. Noturus hildebrandi hildebrandi possesses longer head and prominently blotched color pattern above and almost to belly .

🌀 Behaviour

Behavioural data for Least madtom is currently being reviewed.

🦐 Diet

Diet information for Least madtom is currently being compiled.

🥚 Reproduction

Reproduction data for Least madtom is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory . Subtropical; 37°N - 30°N North America: tributaries of Mississippi River from North Fork Obion River in southwestern Kentucky to Homochitto River in southern Mississippi, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.2±0.4
Food Items

midge and caddis larvae, together with mayfly and stonefly nymphs (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.07 (TL)
Max TL
6.9cm
Anal Rays
15

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Subtropical
Described By
Bailey & Taylor, 1950

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Least Madtom
🌍CES noturus Hildebranáův
🇨🇳Chinese 希氏石鮰

Scientific Synonyms

Scientific Name Author Year Status
Noturus hildebrandi hildebrandi Bailey & Taylor 1950 Synonym
Noturus hildebrandi lautus Taylor 1969 Synonym
Schilbeodes hildebrandi Bailey & Taylor 1950 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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