Redfin pickerel (Esox americanus americanus) fish species and information / pictures of Redfin pickerel - Esox americanus americanus

Redfin pickerel (Esox americanus americanus) fish species information

Scientific Name
Esox americanus americanus

Common Name
Redfin pickerel

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 13-21; Anal spines: 0; Anal soft rays: 13 - 18; Vertebrae: 42 - 51. Body robust, long, cylindrical, cross-section almost circular with flattened to slightly concave dorsal surface. Head large, flat, naked on top. Snout short, broad spatulate, dorsal surface between raised orbits and tip of snout slightly convex. Mouth large, horizontal, reaching at least to middle of pupil or suborbital bar. Teeth moderately large, those in front of upper jaw and several along each side of ramus a little enlarged; cheek and opercle fully scaled. Gill rakers are reduced to patches of sharp denticles. Branchiostegal rays: 19-31. Cardioid scales between pelvic fins 6-32, intergrades 0-26; notched scales in a line between dorsal and anal fin origins 7-25, intergrades 1-22. Submandibular pores 3:2 to 6:5, usually 4:4. Pigmentation: Olivaceous to black above; belly pale amber to white, sometimes mottled wit dark; mid-dorsal band

Classification

Classified By
Gmelin, 1789
Class
Ray-finned fishes (Actinopterygii)
Order
Pikes and Mudminnows (Esociformes)
Family
Pikes (Esocidae)

Distribution

Region
North America
Distribution
North America: Atlantic Slope drainages from St. Lawrence River drainage in Quebec, Canada to southern Georgia in USA; Gulf Slope drainages from Pascagoula River in Mississippi to Florida, USA.
Range
50°N - 26°N

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
26 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Freshwater; ; pH range: ? - 10.1 demersal; non-migratory
Trophic Level
3.65 s.e. 0.56 Based on food items.
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
39.4 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5627 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest; gamefish: yes
Vulnerability
Moderate to high vulnerability (46 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=8; Fec = 186)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated