What two synergistic environmental pressures are chiefly responsible for the demise of the Chinese paddlefish?

Answer

Habitat fragmentation and rampant overexploitation

The fish's slow decline was caused by a grinding attrition resulting from synergistic pressures, namely habitat fragmentation due to radical modification of the Yangtze River and unsustainable fishing pressure.

What two synergistic environmental pressures are chiefly responsible for the demise of the Chinese paddlefish?
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