(2017)
The Dire Status of the Vaquita Has Worsened Analysis of the 2016 Acoustic Monitoring Program data has shown that almost half of the remaining vaquita population was lost between 2015…
Last call: Passive acoustic monitoring shows continued rapid decline of critically endangered vaquita
Thomas, Len; Jaramillo-Legorreta, Armando; Cardenas-Hinojosa, Gustavo; Nieto-Garcia, Edwyna; Rojas-Bracho, Lorenzo; Ver Hoef, Jay M.; Moore, Jeffrey; Taylor, Barbara; Barlow, Jay; Tregenza, Nicholas
The Journal of the Acoustical Society of America (2017)
The vaquita is a critically endangered species of porpoise. It produces echolocation clicks, making it a good candidate for passive acoustic monitoring. A systematic grid of sensors has been deployed…
Dual extinction: The illegal trade in the endangered totoaba and its impact on the critically endangered vaquita
Environmental Investigation Agency
Briefing to the 66th Standing Committee of CITES (2016)
The vaquita and the totoaba have much in common: both are critically endangered, both are protected from international trade under CITES and both are endemic to a relatively small area…
Seventh Meeting of the Comité Internacional para la Recuperación de la Vaquita
CIRVA
(2016)
EXTINCTION IS IMMINENT CIRVA reviewed the 2015 population survey results, which showed that only about 60 vaquitas remained at the beginning of the emergency 2-year partial gillnet ban. CIRVA also…
Passive acoustic monitoring of the decline of Mexico’s critically endangered vaquita
Jaramillo-Legorreta, Armando; Cardenas-Hinojosa, Gustavo; Nieto-Garcia, Edwyna; Rojas-Bracho, Lorenzo; Ver Hoef, Jay; Moore, Jeffrey; Tregenza, Nicholas; Barlow, Jay; Gerrodette, Tim; Thomas, Len; Taylor, Barbara
Conservation Biology (2016)
The vaquita (Phocoena sinus) is the world's most endangered marine mammal with ≈245 individuals remaining in 2008. This species of porpoise is endemic to the northern Gulf of California, Mexico,…
Listening to echolocation clicks with PODs
Tregenza, Nick; Dawson, Steve; Rayment, Will; Verfuss, Ursula
Modern Acoustics and Signal Processing (2016)
Monitoring echolocation using SAMs—static acoustic monitors—such as T-PODs or, more recently, C-PODs—has provided a wealth of information on the fine-scale distribution and activity of dolphins, porpoises and other toothed whales.…
Comparative anatomy of the bony labyrinth of extant and extinct porpoises (Cetacea: Phocoenidae)
Racicot, Rachel A.; Gearty, William; Kohno, Naoki; Flynn, John J.
Biological Journal of the Linnean Society (2016)
The inner ear anatomy of cetaceans, now more readily accessible by means of nondestructive high-resolution X-ray computed tomographic (CT) scanning, provides a window into their acoustic abilities and ecological preferences.…
Endangered species, ecosystem integrity, and human livelihoods
Aburto-Oropeza, Octavio; López-Sagástegui, Catalina; Moreno-Báez, Marcia; Mascareñas-Osorio, Ismael; Jiménez-Esquivel, Victoria; Johnson, Andrew Frederick; Erisman, Brad
Conservation Letters (2016)
If efforts to conserve endangered species lack long-term visions and neglect the human dimensions, conservation success will be questionable. Exclusion of stakeholders in decisions can lead to mistrust and polarization…
Extinction is imminent for Mexico’s endemic porpoise unless fishery bycatch is eliminated
Taylor, Barbara L.; Rojas-Bracho, Lorenzo; Moore, Jeffrey; Jaramillo-Legorreta, Armando; Ver Hoef, Jay M.; Cardenas-Hinojosa, Gustavo; Nieto-Garcia, Edwyna; Barlow, Jay; Gerrodette, Tim; Tregenza, Nicholas; Thomas, Len; Hammond, Philip S.
Conservation Letters (2016)
The number of Mexico's endemic porpoise, the vaquita (Phocoena sinus), is collapsing primarily due to bycatch in illegal gillnets set for totoaba (Totoaba macdonaldi), an endangered fish whose swim bladders…
Report on vaquita rate of change between 2011-2014 using passive acoustic data by the expert panel on spatial models
Jaramillo-Legorreta, Armando; Rojas-Bracho, Lorenzo; VerHoef, Jay; Moore, Jeff; Thomas, Len; Barlow, Jay; Gerrodette, Tim; Taylor, Barbara
Scientific Committee Meeting Documents (2015)
The Expert Panel on Vaquita Acoustic Monitoring had its second meeting on April 28, 2015 to analyze the first four seasons (2011-2014) of the acoustic monitoring program. Results indicate an…