Scientists were writing an obituary for this species when a lawyer found evidence of its existence in an unlikely place.
an online publication about science and society in coastal ecosystems. Read more stories like this at Peter Kyne sits down at his desk to write a eulogy for a fish he’s never met. It’s summer 2019. No scientist has seen signs of the critically endangered , or clown wedgefish, since a dead one turned up at a fish market in 1996. Kyne, a conservation biologist at Charles Darwin University in Australia who studies wedgefish, has worked only with preserved specimens of the spotted sea creature.
Just hours before submitting the final assessment, though, Kyne learns that a dead clown wedgefish has just shown up at a Singapore fish market. Relieved, he and his colleagues revise their work. But the swift action necessary to help the species won’t be possible without more information. The scientists don’t even know the critter’s habitat requirements. Somehow, they must find out where the last holdouts live.
McDavitt, a lawyer, studied archaeology as an undergraduate and became enamored with the cultural ties ancient civilizations had to sawfish and eventually that enthusiasm extended to guitarfish and wedgefish. Photo by Melody Robbins. Many social media posts come tagged with dates and locations, allowing scientists to track animals through space and time to study movement patterns, interspecies behavior, and the abundance and spread of invasive or endangered species. One study used pictures and videos from Italian tourists to track blue sharks along the Mediterranean coast over a decade. Another used Facebook and Instagram posts to count whales on their annual migrations along the coast of Portugal.
McDavitt’s iEcology skills have earned him a reputation among marine ecologists as a sort of super citizen scientist. His research has been cited in scientific papers detailing the illegal shark fin trade, and he has published his own research on the importance of sawfish to Indigenous peoples in Australia.
In August, several weeks after Kyne almost wrote off the clown wedgefish, McDavitt hunches over a desk buried in teetering piles of legal paperwork, scrolling through Facebook posts. He pauses on yet another wedgefish photo. “It looked weird,” McDavitt says. The picture, from a 2015 post, shows a somber young Indonesian man hefting a small, flat fish. The white-edged fins and playful polka dots are unmistakable. McDavitt has found the clown wedgefish.
Images of the clown wedgefish are about as scarce as the fish itself. Two animals on the left are clown wedgefish, and three on the right are broadnose wedgefish. Photo courtesy of Matthew McDavitt. Last year, a group of European scientists published a paper claiming to have found the first record of a young goblin shark in the Mediterranean, a deep-sea species with a face straight out of a Ridley Scott sci-fi flick. They based their conclusion on a photo taken on a Mediterranean beach. But some experts noticed that the juvenile “shark” appeared to be missing a gill and was strangely rigid for a dead fish. McDavitt spotted the fraud immediately.
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