Santa Cruz pupfish (Cyprinodon arcuatus) fish species and information / pictures of Santa Cruz pupfish - Cyprinodon arcuatus

Santa Cruz pupfish (Cyprinodon arcuatus) fish species information

Scientific Name
Cyprinodon arcuatus

Common Name
Santa Cruz pupfish

Biology
Dorsal soft rays (total): 9-10; Anal soft rays: 9 - 11; Vertebrae: 25 - 27. Distinct dorsal-body surface, which is highly convex before the dorsal fin but changing abruptly at the dorsal origin into a deep, postdorsal concavity most developed in breeding males; absence in nuptial males of distinctive yellow or orange pigment on either the caudal fin or peduncle; weak development of lepidodonts and modally six preopercular pores (Ref. 43452).

Classification

Classified By
Minckley & Miller, 2002
Class
Ray-finned fishes (Actinopterygii)
Order
Live bearers, Killifishes and Rivulines (Cyprinodontiformes)
Family
Pupfishes (Cyprinodontidae)

Distribution

Region
North America
Distribution
North America: restricted to the upper Santa Cruz basin in southern Arizona and Northern Sonora.
Range
Unknown

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; benthopelagic
Trophic Level
2.93 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
4.6 cm
Common Length
Unknown 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 (34 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
  Not Evaluated