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💧 Freshwater Least Concern 🌡️ Temperate

Bluehead sucker

Pantosteus discobolus Cope, 1871
Max Length
41 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Temperate
Resilience
Low
Vulnerability
33.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Bluehead sucker (Pantosteus discobolus), first described by Cope, 1871 is a large fish. Adults typically reach 41.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Pantosteus discobolus
Authority
Cope, 1871
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
41 cm
Trophic Level
3.1
Resilience
Low
Vulnerability
33.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Pantosteus
Pantosteus
Species
Bluehead sucker
Pantosteus discobolus

🐟 Physical Description

Blue head (darkest on adult; no blue in Little Colorado River, Arizona population), slender caudal peduncle, predorsal scales usually 50 or more, and 78-122 scales on lateral line .: elongated.

🌀 Behaviour

Behavioural data for Bluehead sucker 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; potamodromous . Temperate; 44°N - 35°N North America: Snake River system (Columbia River drainage), Wyoming, and Idaho; Lake Bonneville basin, Idaho, Wyoming and Utah; south through upper Colorado river drainage (Grand Canyon and above), Wyoming, Colorado, Utah, New Mexico and Arizona in the USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Potamodromous
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00537 × L3.05 (TL)
Max TL
41cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Cope, 1871

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