* Technical Memorandum 459: Assessing Trends in Abundance for Vaquita Using Acoustic Monitoring: Within Refuge Plan and Outside Refuge Research Needs
* A combined visual and acoustic estimate of 2008 abundance, and change in abundance since 1997, for the vaquita, Phocoena sinus
* Estimating the success of protected areas for the vaquita, Phocoena sinus