August 6, 2019 — A new survey published in Royal Society Open Science has dire news for the survival of the vaquita porpoise – a small porpoise that lives in an area of the Mexican coast in the Gulf of California.
Using passive acoustic survey devices – which detect the vaquita due to the species’ use of echolocating “clicks” – the report determined that fewer than 19 individual vaquitas remained as of autumn 2018. The acoustic surveys, which started in 2011, have shown a 99 percent decline in the detection rate of the animals.