“Sabah” Grouper (Epinephelus lanceolatus x Epinephelus fuscoguttatus) (?)
Changi, 14th February 2014

This grouper likely originated from the fish farms situated off the northeastern coast of mainland Singapore; massive numbers of fishes being raised in these aquaculture facilities died during the mass mortality event which took place in the eastern Straits of Johor in early February.

Large numbers of dead groupers were found washed up on the beach, although their identity is unclear. Several grouper species are known to be farmed (or used to be farmed) in the Straits of Johor.

One source (Shannon Lim from OnHand Agrarian) states that the fish farms in the Straits of Johor now mostly raise hybrids informally known as “Sabah Groupers”, which are crosses between the Giant or Queensland Grouper (Epinephelus lanceolatus) and Brown-marbled or Tiger Grouper (Epinephelus fuscoguttatus), although attempts are being made to introduce hybrids between other grouper species in the region.