When those same fish were placed in experimental reefs near the Great Barrier reef, they disregarded safety, straying from the protective coral.

当相同的鱼类被放入大堡礁附近的实验鱼礁中时，它们会疏于戒备，在起着保护作用的珊瑚礁中不知所措。

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This has worked in several places in the tropics, notably the Great Barrier Reef in Australia, where fish populations in protected zones have doubled in five years.

这种做法在不少热带海域卓有成效，特别是澳大利亚的大堡礁，保护区内鱼类数目在五年的时间里便增长了一倍。

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Each fish that had been spawned in the normal water consistently preferred to turn either right or left every time it reached the barrier, a sign of "handedness."

那些在正常海水中长大的鱼苗遇到前方障碍物时，要么总是向左转，要么总是向右转，就像左撇子或者右撇子一样。

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"Our aspect of the project is to harvest the Asian Carp before they get to the fish barrier to reduce the numbers so there is less chance of any Asian Carp getting past the barrier."

VOA: standard.2010.07.19

This part of the Illinois River near Morris is several miles southwest of the electronic fish barrier, a critical point along the Illinois waterway system meant to stop the Asian Carp from reaching Lake Michigan.

VOA: standard.2010.07.19

"Every fish we take out there is one less fish to challenge the electric barrier further upstream yet."

VOA: standard.2010.07.19

They're also considering ways the fish might be evading the barrier.

WSJ: Study: Asian carp unlikely to stow away in barges

The construction of the Gezhouba dam in 1981 on the Yangtze river also created a barrier to the migrating fish which further affected fish stocks.

BBC: Earth News - Giant fish 'verges on extinction'

Here, fillets are used and parchment paper, rather than just the fish's skin, provides an extra barrier between the meat and the salt.

WSJ: Jenn Louis's Rock-Salt-Roasted Salmon and Turnips | Slow Food Fast