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💧 Freshwater Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Temperate

Smallmouth buffalo

Ictiobus bubalus Rafinesque, 1818
Ictiobus Bubalus (Ictiobus bubalus)
Ictiobus Bubalus (Ictiobus bubalus)
Max Length
112 cm
Max Weight
37.3 kg
Lifespan
15 yrs
Trophic Level
3
Depth
-
Climate
Temperate
Resilience
Low
Vulnerability
68.00/100
Typical Length
58.5 cm
Depth Zone
demersal

📖 Overview

Adults inhabit pools, backwaters and main channels of small to large rivers, also in lakes and impoundments. They feed on shellfish and algae, by grinding with the bony plates in its throat . They appear to be a good candidate for aquaculture. Marketed fresh and eaten pan-fried, broiled and baked .

Scientific Name
Ictiobus bubalus
Authority
Rafinesque, 1818
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
112 cm
Max Weight
37.3 kg
Lifespan
15 years
Trophic Level
3
Resilience
Low
Vulnerability
68.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

: fusiform / normal.

🌀 Behaviour

Behavioural data for Smallmouth buffalo is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Assuming same reproductive mode as in Chasmistes.

🌍 Habitat & Distribution

Freshwater; demersal; potamodromous . Temperate; ? - 32°C ; 50°N - 26°N North America: Lake Michigan drainage and Mississippi River basin from Pennsylvania and Michigan to Montana, USA and south to the Gulf of Mexico; Gulf Slope drainages from Mobile Bay in Alabama to Rio Grande in Texas and New Mexico, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Potamodromous
Trophic Level
3±0.39
Food Items

shellfish and algae, by grinding with the bony plates in its throat (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.01 (TL)
Max TL
112cm
Max Weight
37,300g

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Trophic Level
3
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Rafinesque, 1818

🎣 Angling Guide

Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
bottom fishing popping cork soft plastics live bait
Bait & Lures
live shrimp cut mullet soft plastic paddle-tails popping corks
Recommended Tackle
  • medium-heavy 7ft spinning rod
  • 30-50 lb braid
  • fluorocarbon leader
Where to Find Them
  • grass flats
  • oyster bars
  • marsh drains
  • deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.

🍽️ Edibility & Flavour

"Smallmouth buffalo is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

⚡ Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 17.5 g
Omega-3 (total) 1,160 mg

🔬 Mercury Safety

Mercury data for Smallmouth buffalo has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 5 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Smallmouth buffalo ↗
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