Environmental Engineering Reference
In-Depth Information
Table 2.14
(continued)
Sl.
No.
Species
Distribution
Diet
Length
Reproduction
8
Rhizoprionodon
acutus
(Brazilian sharpnose
shark)
Abundant in the shore waters,
particularly in the west coast of India
during September to February and
east coast during summer months
Small shes, squids, cuttle
sh, crabs and shrimps
Matured ones are about 1 m in
length
Produces an average of 2
6
-
embryos per litter, which
are 26
27 cm long
-
9
Sphyrna lewini
(hammerhead shark)
(IUCN status:
vulnerable)
Abundantly found in the Indian seas,
notable for its unique migratory
behaviour
Sardine, anchovies,
mackerel, eel, milk
sh, sole
sh. It also feeds on sharks
and rays
Matured ones are up to 4.2 m
in length
Development is viviparous
and produces an average of
15
-
30 embryos per litter.
The size at birth is
45
-
55 cm
10
Rhincodon typus
(whale shark)
(IUCN status:
vulnerable)
Appears occasionally at Indian coastal
waters
Filter-feeder and is believed
to sieve plankton as small as
1 mm diameter through the
ne mesh of their gill rakers
Largest length up to 1,200 cm
but mean length is around
700 cm
Ovoviviparous, embryo
length varies from
48
58 cm
-
11
Atelomycterus
marmoratus
(coral cat shark)
Appears occasionally at Indian coastal
waters
Squids, crabs, etc.
12
Glyphis gangeticus
(river shark)
(IUCN status:
extremely endangered;
Wildlife Protection
Act: Schedule I)
Hooghly
Ganges river system of
West Bengal coast
Fish
Maximum length is around
200 cm. Matured males are
about 178 cm
Viviparous. Newly born
individuals are 56
-
61 cm
-
long
13
Glyphis glyphis
(sharptooth shark or
speartooth shark)
Con
ned to turbid waters of rivers,
estuaries and inshore waters of coastal
West Bengal
Fish
Minimum length is around
100 cm
Live-bearing probably with
yolk-sac placenta
14
Glyphis siamensis
(Irrawaddy river shark)
Conned to turbid waters of rivers,
estuaries and inshore waters of coastal
West Bengal
Fish
Minimum length is around
63 cm
Live-bearing probably with
yolk-sac placenta
Source
Mitra and Banerjee (
2005
)
