rather discouraging report on the BBC website titled ‘Only 50 Years Left’ for sea fish, which talks of a report on the declining fish stocks in the earth’s oceans. the report is for the journal Science and is the work of an international team of researchers and scientists. The great decline in fish stocks is largely due to the broader loss of marine biodiversity. quoting steve palumbi from stanford university (one of the scientists on the project):
“Unless we fundamentally change the way we manage all the ocean species together, as working ecosystems, then this century is the last century of wild seafood.”
in the report, experiments performed in small, relatively contained ecosystems show that reductions in fish and marine life diversity tend to bring reductions in the size and robustness of local fish stocks. This implies that loss of biodiversity is driving the declines in fish stocks seen in the large-scale studies. But data gathered from areas where fishing has been either banned or heavily restricted was promising, showing that protection of fishing areas though ‘no fish zones’ and marine sanctuaries brings back biodiversity and helps to restore fish populations.