Monday, June 22, 2009

Monday Morgue: 22nd June 2009

P1150765
Tilapia (Oreochromis sp.)
Lim Chu Kang, 30th December 2008

This probable hybrid tilapia was found floating in a concrete tank full of its live counterparts at Jurong Frog Farm.

Global Invasive Species Database

The tilapia species commonly encountered in our ponds, rivers and canals, and even in our mangroves and estuaries is likely to be the Mozambique tilapia (Oreochromis mossambicus).

A Guide to the Freshwater Fishes of Singapore
A Guide to Common Marine Fishes of Singapore
A Guide to the Mangroves of Singapore
FishBase
Global Invasive Species Database

However, many tilapia raised for aquaculture in Singapore are hybrids between the Mozambique tilapia, blue tilapia (Oreochromis aureus) and Nile tilapia (Oreochromis niloticus). Consequently, it is probable that many tilapia populations found in the wild also contain the latter 2 species, as well as captive-bred hybrids (such as the 'red tilapia').

Blue tilapia (Oreochromis aureus)
FishBase
Global Invasive Species Database

Nile tilapia (Oreochromis niloticus)
FishBase
Global Invasive Species Database

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