Usumacinta sea catfish (Potamarius usumacintae) fish species and information / pictures of Usumacinta sea catfish - Potamarius usumacintae

Usumacinta sea catfish (Potamarius usumacintae) fish species information

Scientific Name
Potamarius usumacintae

Common Name
Usumacinta sea catfish

Biology
Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 19 - 23. Distinguished from other freshwater ariids occurring in Mesoamerica by the following combination of characters: presence of accessory tooth patches on palate; premaxillary tooth band length 2.4-2.9 in its width; ; snout length 1.4-1.8 in postorbital length; lateral gill rakers on first gill arch 17-20 (mode 19); mesial gill rakers on first two gill arches well developed; accessory palatal patches with numerous pointed-conical teeth; premaxillary maxillary barbel not extending behind gill membrane; and dorsomedian fleshy groove on head absent (Ref. 75770).

Classification

Classified By
Betancur-R. & Willink, 2007
Class
Ray-finned fishes (Actinopterygii)
Order
Catfish (Siluriformes)
Family
Sea catfishes (Ariidae)

Distribution

Region
Central America
Distribution
Central America: endemic to the R?o Usumacinta basin in Guatemala and Mexico.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Freshwater; demersal
Trophic Level
3.66 s.e. 0.40 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
59.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
High vulnerability (60 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)
Threat To Humans
  Traumatogenic (Ref. 58010)
IUCN Red List Status
  Not Evaluated