题目选项分析

After increasing steadily for centuries, the total annual catch of all wild fish peaked in 1989; since that time, the total catch for most species has declined or plateaued, prompting conservation efforts designed to help prevent population crashes and possible extinctions.

After increasing steadily for centuries, the total annual catch of all wild fish peaked in 1989, but with the total catch since then declining or plateauing in the case of most species, prompting conservation efforts designed to help prevent population crashes and possible extinctions.