▁dol ph ins ▁in ▁X iam en ▁( <0xE5> <0xBB> <0x88> 門 ), ▁P RC . ▁ ▁Other ▁research ▁studies ▁include : ▁Ir raw addy ▁dol ph ins ▁in ▁northern ▁Bor neo , ▁Malays ia ▁and ▁Mah ak am ▁River ▁and ▁la kes ▁in ▁East ▁Kal im ant an , ▁Indones ia . ▁ ▁In ▁addition , ▁a ▁new ▁action ▁plan ▁has ▁been ▁developed ▁for ▁the ▁coming ▁five ▁years ▁for ▁dol ph ins ▁in ▁G ulf ▁of ▁Ton kin ▁in ▁Vietnam ▁and ▁China . ▁ ▁A ▁special ▁issue ▁of ▁Asian ▁Marine ▁Bi ology ▁foc using ▁on ▁Asian ▁wh ales , ▁dol ph ins ▁and ▁por po ises ▁was ▁published ▁by ▁OP CF . ▁ ▁Research ▁on ▁the ▁status ▁of ▁cet ace ans ▁in ▁the ▁G ulf ▁of ▁Ton kin ▁ ▁OP CF ▁has ▁conducted ▁a ▁project ▁to ▁investigate ▁the ▁status ▁of ▁cet ace ans ▁in ▁the ▁G ulf ▁of ▁Ton kin ▁from ▁October ▁ 1 9 9 9 ▁to ▁April ▁ 2 0 0 0 . ▁This ▁programme ▁was ▁spons ored ▁by ▁International ▁Union ▁for ▁Conserv ation ▁of ▁Nature ▁and ▁Natural ▁Resources ▁( I U CN ) ▁Species ▁Sur v ival ▁Commission ▁Cet ace an ▁Special ist ▁Group ▁with ▁don ations ▁from ▁Convention ▁on ▁M igration ▁Species . ▁This ▁research ▁has ▁generated ▁meaning ful ▁information ▁on ▁the ▁distribution ▁and ▁abund ance ▁of ▁cet ace ans ▁in ▁the ▁G ulf ▁of ▁Ton kin . ▁It ▁shows ▁the ▁distribution ▁and ▁density ▁of ▁fish ing ▁vessels ▁and ▁the ▁frequency ▁and ▁nature ▁of ▁accident al ▁and ▁intent