An international team of researchers finds both dolphins and net-casting fishers in Brazil have more success catching fish when they join forces.
abc.net.au/news/dolphins-and-humans-catch-more-fish-working-together/101913740An international team of researchers has found dolphins and net-casting fishers in Brazil both have more success catching fish when they work together.
Damien Farine of the ANU said in Laguna the dolphins had been fishing cooperatively with humans for the last 140 years. "The really big questions were on the dolphins' side, because in Laguna the water is actually quite murky so you can only see a few centimetres under the surface."Unlike other cases of dolphins helping fishers, the animals that were studied were not fed by the people the assisted.
It also found that cooperation with fishers triggered a 13-per-cent increase in dolphins' survival rates. "These records are quite anecdotal, this case in Brazil is the first that has been explained in as much detail as we have, but they do all have something in common … They all involve catching mullet," he said.
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