A combination of all these factors means the population in the southern part of the reef has halfed in the last decade.
综合以上因素，在过去的10年里，大堡礁南部地区的儒艮数量下降了一半@jXgc]0)BBPX)。
Now there are just 11 thousand left in the entire great barrier reef region.
现在整个大堡礁仅剩下11000只C3z8L;.Q.g#)eJo(6sK=。
Yet there are still more dugongs in Australian waters than any other place on earth.
不过澳大利亚的儒艮数量却是全球各水域里最多的_W2QVU#d@+AL;e#。
Dugongs are not the only animals to feed on sea grass, young green turtles like it too.
除了儒艮，幼年的绿海龟也是海草牧场的常客p3q|quzfWx7L(v9jYV。
He's after the most tender shoots, and this is his exclusive patch.
它爱吃嫩叶子，这片草场是它的专属牧场K^KJmF^;cuc|.hj%。
He's very choosy about what he likes and what he doesn't.
它可是个挑剔的主儿，喜欢什么不喜欢什么，界线分明|8MwojpJw*d(pA。
Like a lawn, sea grass needs to be constantly cut short for healthy growth, so he's actually farming his own little plot that he'll tend for several months before moving on.
如我们的草坪一样，海草也得不断修剪才能长得更茁壮JGFZhtus^C)ucm0[wLY。以此来看，海龟是在照料它的自留地MihFy+qjjdM。在此照料几个月后，绿海龟将继续向大海进发!DW3m~QL%=LD。
Sea grass meadows are also nurserys for baby fish like these domino damselfish.
海草牧场也是幼鱼们的育婴堂,zDl7-SIs5~。比如这群三点白#;8p~43|@dV。