Blue catfish
📖 Overview
Adults inhabit deep water of impoundments and main channels and backwaters of medium to large rivers, over mud, sand and gravel with preference for clear, strongly flowing water. They stay on the bottom during the day in deep areas and moves into swifter water at night to feed . Food consists of small aquatic invertebrates, clams and fishes . Eggs are deposited in nests under under logs, brush, or riverbank . Males build nest often in pools or backwaters . Marketed fresh and frozen. Eaten steamed, fried, broiled, microwaved and baked .
🔬 Taxonomy
🐟 Physical Description
: fusiform / normal.
🌀 Behaviour
Behavioural data for Blue catfish is currently being reviewed.
🦐 Diet
The blue catfish is an opportunistic predator, eating any species of fish it can take (including cannibalism), along with insects, crawfish, crabs, freshwater mussels, clams, worms, frogs, and other readily available aquatic food sources. The species is noted for taking injured fish beneath marauding schools of striped bass in open water in reservoirs, and feeding on wounded baitfish that have been washed through dam spillways or power-generation turbines. It is one of the few species of fish in the Mississippi River basin able to eat adult Asian carp.
🥚 Reproduction
Reproduction data for Blue catfish is currently being compiled.
🌍 Habitat & Distribution
Freshwater; brackish; demersal; potamodromous ; depth range ? - 50 m . Subtropical; 44°N - 15°N, 108°W - 80°W North America: USA (Mississippi River basin from western Pennsylvania to southern South Dakota and Platte River in southwestern Nebraska, south to Gulf; Gulf Slope from Escambia River drainage (where introduced), Alabama and Florida, to Rio Grande drainage in Texas and New Mexico; and Mexico.
🌿 Ecology
📐 Morphometrics
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Blue catfish is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
| Nutrient | Amount |
|---|---|
| Protein | 16.6 g |
| Omega-3 (total) | 378 mg |
🔬 Mercury Safety
Mercury data for Blue catfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Amiurus ponderosus | Bean | 1880 | Synonym |
| Pimelodus affinis | Baird & Girard | 1854 | Synonym |
| Pimelodus furcatus | Valenciennes | 1840 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 34 records indexed .
👥 Community & Contribute
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