While economically beneficial, the use of FADs—particularly drifting FADs—presents several environmental challenges:
"Fish gears work" is not just about physics; it is about people. This includes:
FADs have revolutionized the tuna industry. It is estimated that 40% to 50% of the world’s tropical tuna catch (Skipjack, Yellowfin, and Bigeye tuna) is harvested using FADs. fishgrs work
What is a FAD? A FAD is a structure placed in the water to attract fish. They range from simple, biodegradable materials (like bamboo rafts) to high-tech buoys equipped with solar-powered sonar and GPS satellite tracking.
How They Work: Pelagic fish in the open ocean are constantly seeking shelter, food, and orientation points in the vast emptiness of the deep sea. Floating objects provide a reference point and often attract algae and barnacles, which in turn attract small baitfish. This creates a mini-ecosystem that draws in larger predators. This behavioral trait is known as associative behavior. What is a FAD
In three years, fishgrs work has spread beyond Kerala. Fishers in Tamil Nadu, Odisha, and even as far as Myanmar have reached out. A group in Indonesia started their own version: ikan.data — directly crediting Gracia’s model.
An unexpected outcome? The data has become a quiet witness to climate change. How They Work: Pelagic fish in the open
“We see fish that never came this far south. We see spawning happening earlier. Fishers say ‘the sea is confused.’ That is not folklore. That is a scientific observation without a lab,” says Dr. Anjali Menon, who has begun using fishgrs work data in a coastal ecology study. “This is citizen science at its most raw and most rigorous.”
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