Hi Tawaki,
I think the info you refer to is what we published in a media release highlighting the mutilation of Hector's dolphins - and supporting our call for a ban on set nets:
http://www.forestandbird.org.nz/what-we-do/publications/media-releases/tally-mutilated-hector%E2%80%99s-dolphins-grows
Doesn't include other marine mammals though. Am currently seeking an update from DOC, but current record 2002 - October 2008 includes the following - PLEASE BE WARNED - NOT NICE READING!:
2002 - 1 x NZ fur seal (dog)
2003 - 1 x NZ sea lion (shot)
3 x NZ fur seal (skinned, arrow, dog)
2004 - 1 x NZ fur seal (run over)
2005 - 1 x Common dolphin (tail cut off)
2 x NZ fur seal (shot)
2007 - 2 x Hectors dolphin (tails cut of +++)
1 x orca (tail, fins, fluke cut off and filleted)
1 x common dolphin (filleted, head and spine)
5 x NZ fur seal (most = shot)
2008 - 1 x dusky dolphin (shot)
3 x NZ fur seal (run over, hammer to head, dog)
+ 39 NZ fur seals (single event - dogs)
2 x NZ sea lions (shot, bludged)
1 x dolphin (tail cut off)
:( :( :(