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Ganges shark (Glyphis gangeticus) fish species and information / pictures of Ganges shark - Glyphis gangeticus
Ganges shark (Glyphis gangeticus) fish species information
Scientific Name
Glyphis gangeticus
Common Name
Ganges shark
Biology
Biology poorly known. But its minute eyes suggest that it may be adapted to turbid water with poor visibility, as in large tropical rivers and muddy estuaries. Newborn specimens are from 56 to 61 cm long. Viviparous (Ref. 50449). Its notoriety may have stemmed from its widespread confusion with C. leucas. But this species is potentially dangerous as well because of its size and large teeth, though its reputation as a man-eater is still unproven.
Classification
Classified By
M?ller & Henle, 1839
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Requiem sharks (Carcharhinidae)
Distribution
Region
Indo-West Pacific
Distribution
Indo-West Pacific: Hooghly River, Ganges system, West Bengal, India, and likely from the vicinity of Karachi, Pakistan. Reported from Taiwan. (Ref. 5193)
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
Marine; freshwater; brackish; demersal; amphidromous (Ref. 51243)
Trophic Level
4.22 s.e. 0.68 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False
Physical Size and Genetics
Maximum Length
204
cm
Common Length
Unknown
cm
Phylogenetic Diversity Index
PD50 = 0.5312 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Human Uses and Population
Human Uses
Fisheries: subsistence fisheries
Vulnerability
High vulnerability (64 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Assuming Fec
Threat To Humans
Traumatogenic
IUCN Red List Status
Critically Endangered (CR) (A2cde; C2b)