Credibility of who? That an MPI document reported the death of a dolphin species on the verge of extinction? And that is the one we know of.
That Universities with considerable recognition have caught out MPI and their commercial cronies for destroying our resource and ignoring action (admitted by MPI).
I would be (and am attacking the credibility of an organisation) who by their own admittance has failed to protect our resource. Their own staff have admitted it. OR do we live in a Ostrich society that just lets it go?