Save the Vaquita
Neptune’s Note XVI
Since I wrote my Neptune’s Note for the Vaquita a little over two years ago, not much has improved for the world’s smallest and rarest porpoise. If anything, their already dire situation (there were only 10 individuals left at the time) has only worsened.
Despite conservation patrols using ships, sonar, radar, and drones to deter illegal fishing and remove gillnets from the water, the death traps are still being found in their habitat—now reducing the species to just 8 individuals. The Mexican government insists it has met its 2023 conservation targets, rolling out public awareness campaigns, tighter enforcement, and increased inspections, but whether these efforts will be enough to save the vaquita, only time will tell.
It’s a huge risk to take with the survival of an entire species, though with so few vaquitas left, any action is better than none at this point. However, I maintain that without dismantling the international crime networks behind the totoaba trade the threat to vaquitas will never truly disappear.
As March is unofficially ‘Save the Vaquita’ month, here’s a refresher on these lovely little creatures, and why we must save them.
Name: Vaquita is Spanish for “little cow”.
Family: Phocoenidae
Genus: The vaquita shares its genus, Phocoena, with the spectacled porpoise, harbour porpoise, and Burmeister’s porpoise.
Population: The vaquita is the most endangered marine mammal in the world with only 8 individuals left. These little porpoises were only discovered in 1958 and with a population of around 600 in 1997, their decline has been rapid.
Status: They are listed with a ‘critically endangered’ status by the International Union for Conservation of Nature (IUCN).
Location: They are endemic to the Gulf of California, Mexico, which is the smallest range of any marine mammal. It seems everything about these porpoises is on the smaller side, as they also prefer to live in shallow (small in depth☝️) waters of less than 150 metres!
Weight: They can weigh anywhere between 27 and 68 kg which is teeny tiny even for a porpoise.
Length: Females often grow to be slightly bigger than the males, reaching a length of around 150 cm, while the males reach up to 140 cm.
Anatomy: If their size doesn’t give them away then the vaquita can be easily distinguished by the tall, triangular dorsal fin, which allows them to dissipate extra body heat in those warm Mexican waters. They are grey in colour, with a slightly darker back, and they also have cute little black eye patches and lips which makes it look like they’re smiling1. Like many whales, dolphins, and porpoises, they hunt using echolocation which involves making high-pitched clicks to bounce off objects around them, hoping one of those objects will be their next meal.
Diet: Vaquitas usually eat fish and squid, but are partial to the occasional crab or lobster as well.
Social habits: They are either seen alone or in pairs, but have been spotted in groups of up to 10, which now could well be the entire remainder of the species—perhaps they’re getting together to strategise their survival? Vaquitas spend most of their time underwater and are easily spooked by boats so they’re not often seen by humans.
Reproduction: A vaquita pregnancy lasts for 10-11 months and they usually give birth to a single calf every other year. Research suggests they have polygynous mating systems whereby males will compete for the females. This can sometimes lead to inbreeding in a species with such a small population size and can make it difficult for them to recover, but there’s no evidence of this with the vaquita.
Unique facts:
They’re the only species in their family which can be found in warmer waters.
In an effort to prevent extinction, a trial attempt was made to put a vaquita into captivity, unfortunately resulting in its demise. No further attempts have been made.
These little guys are the smallest cetaceans in the world. They’re shy and gentle and just want to peacefully live out their days in their little corner of the world.
Threat of entanglement: The sole reason vaquitas are endangered is because they are so often caught and drowned in gillnets. Commercial and illegal gillnets in Mexico’s Gulf of California are used by fisheries to catch another vulnerable species, the totoaba fish. The swim bladder of a totoaba fish is used in Chinese medicine due to the unproven belief that it can cure various illnesses. Though international trade of totoaba is banned under CITES, high demand from China keeps the illegal fisheries in business. Despite awareness of the illegal trade, a partial ban on gillnets in 2015 and a permanent gillnet exclusion zone created in 2017, the Mexican government has since eliminated any ‘no tolerance’ zones. In 2021 they reopened these areas to fishing and thus have put the vaquita in even more danger. Any population that drastically declines becomes more vulnerable to other threats too.
Other threats: Living in close proximity to the coast means vaquitas are threatened by entanglements, bycatch, runoff pollution, and habitat alterations. However, a simulation test run in 2022 revealed that the species could still survive if bycatch stopped immediately, despite the presence of these other environmental threats.
What can be done to protect them: Only the removal of gillnets from the Gulf of California and an immediate crack down on illegal fishing in the area will save the vaquita. In 2015, the Mexican government implemented a two-year ban on gillnet fishing but without any permanence or action against illegal fishing alongside this, these efforts were futile. Mexico must assemble a plan which enforces a total ban on the use of gillnets and restricts illegal fisheries and poachers from benefiting from totoaba trading. In July 2022, the Mexican navy took matters into their own hands and dropped 193 concrete blocks into the gulf hoping to snag and destroy any illegally placed gillnets. This isn’t the most practical or environmental solution, but the same resolve must be adopted by the Mexican government to protect an area of just 110 square miles. One bold act may be impactful enough to save the entire vaquita species.
It’s difficult to comprehend that these sweet creatures could soon be no more.
Please sign this petition to show your support.
Cover image by savethewhales.
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Amie 🐋
Given their circumstances they probably aren’t 🥺
"Little Cow" 💙
Thank you much for sharing this information.