A large proportion of sushi, which combines raw fish or vegetables with cooked vinegared rice, contains farmed shrimp, prawns or salmon.
Due to climate change, rising sea temperatures led to a drop in anchovy catches in Peru, according to reports.
The cost of the main feed for farmed fish has jumped by almost 50 percent in two weeks to reach a record high.
The increased costs are expected to be passed on to diners as restaurants and cafes serving sushi put up prices to maintain their margins.

大部分寿司都是用生鱼肉或蔬菜搭配上醋饭制作而成，其馅料有养殖的小虾、明虾或三文鱼。
据报道，由于气候变化，海水温度上升导致秘鲁的凤尾鱼捕捞量减少。
养殖鱼类的主要饲料造价在两星期内上涨了50%，达到历史新高。
预计成本增加将间接影响到到食客们，因为餐馆和供应寿司的咖啡馆会提高价格以维持利润。

【注解】
文中的sushi就是“寿司”的意思，是日本传统美食（delicacy）之一，以低的热量（low calories）、有机的食材(organic ingredients)受到越来越多人的喜爱，需要注意是，不要将寿司和“刺身”（sashimi）混为一谈哦。
最后一段中的margin作名词时，意为“边缘；利润”，如：gross margin (毛利)，the margin of a forest (森林的边缘)。