Saving Seafood

Big sea, bigger data: How analytics are making peace between fishermen and turtles

February 5, 2019 — The ocean is complicated. Our tools to manage it are blunt.

We often approach the ever-changing ocean as if it were a stationary valley in a national park. We close entire coastlines and restrict fisheries to protect single species. We’re flummoxed by wide-ranging mobile marine life and unprepared for climate change.

But a new generation of data-driven tools balances the needs of fish and fishermen and adapts automatically as the environment changes.

With the government’s towering stockpiles of ocean data, scientists can use weather and ocean chemistry to predict where fishermen are likely to catch their intended targets, including swordfish or tuna, and avoid protected species, such as marine mammals, sharks or manta rays.

Google and Facebook analyze data to predict our behavior with unnerving precision. With dynamic ocean management, scientists use similar strategies to protect the areas where turtles, albatross or whales are most likely to congregate in a given day or hour.

Read the full story at The Washington Post

This forecasting tool aims to keep ships and blue whales from colliding

January 16, 2017 — A new forecasting tool will help scientists predict blue whale traffic, as the ocean behemoths make their annual migration.

The tool allows researchers to post online maps showing likely “hot spots” for blue whales that will help ship captains avoid collisions with the animals.

“We can both see where they go and when they go,” said Elliot Hazen, a research ecologist with the National Marine Fisheries Service, who developed the forecasting program. “We can take their movements and combine that with remotely sensed oceanographic data, to find out not only where they go, but also some of the oceanographic conditions that trigger that.”

When the whales travel up the California coast, they navigate a marine highway of shipping vessels, fishing boats and cruise liners. There are several reported ship strikes per year, but there may be many more than that, said Helen Bailey, a research associate professor at University of Maryland, Center for Environmental Science, who coordinated the forecasting process.

“We’re probably underestimating the number that have been hit by ships, because they sink and don’t float,” Bailey said.

Blue whales are the largest creatures ever to live on the planet, with silvery bodies that can grow more than 80 feet and up to 165 tons. But there are just under 2,000 of them, and their numbers aren’t growing, Bailey said.

Read the full story at The San Diego Union-Tribune