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Ocean currents bring good news for reef fish
https://www.coralcoe.org.au/media-releases/ocean-currents-bring-good-news-for-reef-fishOcean currents bring good news for reef fish
19 Apr 2019
…
“We looked at everything from gobies to coral trout and large jacks, assessing more than 18,000 fish from over 300 species,” said Mr Morais.
“We found that various transport mechanisms, such as currents and tides, interact with the reef and bring in vast amounts of plankton.”
The pair found that for every kilogram of fish produced on the reef more than 400 grams of that kilogram relied on food derived from the open ocean, rather than the reef itself. This rises to almost 600 grams on the side of the reef facing the open ocean.
“This means, that for many reefs, food from outside can sustain fish populations, even when the coral is badly damaged,” Prof Bellwood said.
…
https://dx.doi.org/10.1016/j.cub.2019.03.04419 Apr 2019
…
“We looked at everything from gobies to coral trout and large jacks, assessing more than 18,000 fish from over 300 species,” said Mr Morais.
“We found that various transport mechanisms, such as currents and tides, interact with the reef and bring in vast amounts of plankton.”
The pair found that for every kilogram of fish produced on the reef more than 400 grams of that kilogram relied on food derived from the open ocean, rather than the reef itself. This rises to almost 600 grams on the side of the reef facing the open ocean.
“This means, that for many reefs, food from outside can sustain fish populations, even when the coral is badly damaged,” Prof Bellwood said.
…
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