Home
Hagfishes
Chimaeras
Lampreys
Sharks and Rays
Ray-finned fishes
Anglerfishes
Beardfishes
Bichirs
Bonefishes
Bony tongues
Bowfins
Carps
Catfish
Characins
Clingfishes
Cods
Cusk eels
Dories
Eels and Morays
Flatfishes
Gars
Grinners
Halosaurs and deep-sea Spiny eels
Herrings
Jellynose fishes
Knifefishes
Lanternfishes
Lightfishes and Dragonfishes
Live bearers, Killifishes and Rivulines
African rivulines
Four-eyed fishes, onesided livebearers & white-eye
Killifishes
Middle American killifishes
Poeciliids
Pupfishes
Rivulines
Splitfins
Toothcarps
Topminnows and killifishes
Milkfish
Mullets
Needle fishes
Perch-like fish
Pikes and Mudminnows
Pipefishes and Seahorses
Pricklefishes, Bigscales and Gibberfishes
Puffers and Filefishes
Pygmy sunfishes
Salmons
Sawbellies
Scorpionfishes and Flatheads
Silversides
Smelts
Spiny eels
Sticklebacks and Seamoths
Sturgeons and Paddlefishes
Swallowers and Gulpers
Tarpons and Tenpounders
Toadfishes
Trout-perches, Pirate perches and Cavefish
Velifers, Tube-eyes and Ribbonfishes
Whalefishes
Lobe-finned fishes
Setting up your tank
DIY Fish Tank Stand
250L community aquarium
Contact Us
Find fish information
Find fish by area
Potosi pupfish (Cyprinodon alvarezi) fish species and information / pictures of Potosi pupfish - Cyprinodon alvarezi
Potosi pupfish (Cyprinodon alvarezi) fish species information
Scientific Name
Cyprinodon alvarezi
Common Name
Potosi pupfish
Biology
Dorsal soft rays (total): 10-12; Anal soft rays: 9 - 11
Classification
Classified By
Miller, 1976
Class
Ray-finned fishes (Actinopterygii)
Order
Live bearers, Killifishes and Rivulines (Cyprinodontiformes)
Family
Pupfishes (Cyprinodontidae)
Distribution
Region
North America
Distribution
North America: El Potos? in Nuevo Leon, Mexico.
Range
25°N - 24°N
Environment
Climate
Subtropical
Water Temperature From
18
°C
Water Temperature To
22
°C
Depth From - meters
Unknown
m
Depth To - meters
Unknown
m
Zone
benthopelagic
Environment
Freshwater; benthopelagic; non-migratory
Trophic Level
2.94 s.e. 0.32 Based on size and trophs of closest relatives
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
5.0
cm
Common Length
4.3
cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Human Uses and Population
Human Uses
Unknown
Vulnerability
Low to moderate vulnerability (30 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
Harmless
IUCN Red List Status
Extinct in the Wild (EW)