Fish populations linked to climate change

Researchers at the Australian Institute of Marine Science have been examining the effects of climate events such as El Nino on reef fish numbers for 13 years.

Ecologist Alistair Cheal says those events cause huge changes in water temperatures, wind speed and water circulation.

"All these things can actually effect the breeding success of reef fishes and the survival of their larvae," he said.

The study found different populations of fish species - some up to 800 kilometres apart - rose and fell in sync with one another and the climate events.

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Source: ABC News

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