translation.en: You can see the fish are balled up and then there's a little cloudy area there where they're exchanging the eggs and sperm for reproduction -- events that the ocean is supposed to do, but struggles to do in many places now because of human activity.
translation.zh: 你能看到这些鱼群乱作一团 然后有个地方模糊不清 它们在那里交换卵子和精子完成交配。 这本是在大海中稀松平常的事， 现今在很多地方却变得艰难， 主要是人类的活动造成的。