New Delhi, (PTI) Climate change may be causing more competition for food in oceans, leading to a reduction in the weight of fish, according to a study.
Researchers at the University of Tokyo in Japan found that fish weight in the western North Pacific Ocean dipped in the 2010s due to warmer water limiting food supplies.
They attributed the first period of weight loss to greater numbers of Japanese sardines, which increased competition with other species for food.
