AVA are running test on the seafoods that are from local kelong and fisheries to prove that they are safe for consumption... Maybe I haven been following the news, did they say it is safe to consume after everything's been cleaned up?
The water in the kelong is not confined and the fishes are living like 2-3 metres away from the surface, the is a lot more circulation and exchange of fresh seawater compared to our tank... Anyway, those kelong and fisheries in Changi are not really affected much... The oil spill didnt reach there..