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💧 Freshwater Least Concern 🌡️ Temperate

Swampfish

Chologaster cornuta Agassiz, 1853
Max Length
6.8 cm
Max Weight
Lifespan
Trophic Level
3.3
Depth
Climate
Temperate
Resilience
High
Vulnerability
13.00/100

📖 Overview

Adults occur on vegetation and debris in swamps, sloughs and quiet pools and backwaters of streams. Found year-round in open streams which are small and well-shaded with temperatures never exceeding 23°C. In such streams, thigmotaxic tendency is shown by the difficulty in seining these individuals from the roots and debris of their preferred habitat along edges of submerged weed banks which border sand-bottomed channels. This habitat is rich in potential food for C. cornuta like amphipods, ostracods and copepods . Eggs are carried in gill chambers of females .

Scientific Name
Chologaster cornuta
Authority
Agassiz, 1853
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
6.8 cm
Trophic Level
3.3
Resilience
High
Vulnerability
13.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 9 - 12; Anal soft rays: 9 - 10. Strongly bicolored; dark brown above, white to yellow below. Small eyes. No pelvic fins. 3 narrow black stripes on side; one on lower side wide at front, narrow at rear. 2 black streaks along back before dorsal fin separate to encircle dorsal fin; pink gills visible. Caudal fin clear near base, often black in center; dusky black band in dorsal fin. 0-2 rows of papillae on caudal fin. 9-11 branched caudal rays.: elongated.

🌀 Behaviour

Behavioural data for Swampfish is currently being reviewed.

🦐 Diet

Diet information for Swampfish is currently being compiled.

🥚 Reproduction

Incubates eggs in gill chamber of females .

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory . Temperate; 38°N - 32°N North America: Atlantic Coastal drainages from Virginia to Georgia, U.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.3±0.47

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
6.8cm
Dorsal Rays
11
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Agassiz, 1853

🌐 Names & Taxonomy

Language Common Names
🇬🇧English swampfish

Scientific Synonyms

Scientific Name Author Year Status
Chologaster avitus Jordan & Jenkins 1889 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 16 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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