中美洲的墨西哥,西临太平洋,西北有著名的加里福尼亚湾,东濒加勒比海,东南有广阔的墨西哥湾,海岸线全长9219公里。墨西哥北部地区主要为热带气候,气温可达52℃,干旱少雨,最低气温也在18℃—20℃以上。沿海岸是一片沙荒,是有名的仙人掌的故乡,海水盐度较高,达45—50‰,却是蓝对虾、牡蛎、 Central America, Mexico, west of the Pacific Ocean, northwest famous Gulf of California, east of the Caribbean Sea, southeast of the vast Gulf of Mexico, a total length of 9219 km coastline. The northern region of Mexico is mainly tropical climate, the temperature can reach 52 ℃, drought, the minimum temperature is above 18 ℃ -20 ℃. Along the coast is a shortage of sand, is the famous hometown of cacti, sea salinity is high, reaching 45-50 ‰, but it is blue shrimp, oysters,