These toxic blooms can kill marine life and people who eat contaminated seafood .
这些有毒的水华能杀死海洋生物以及食用了受污染海鲜的人。
These blooms are among the largest in extent and abundance in the world .
这也是全世界面积最大、数量最多的海洋水华。
New " layers " to the satellite-based software include topographic maps of the seafloor ; locations of shipwrecks and algal blooms ; and even maps of the tiny phytoplankton that provide the bulk of the ocean 's food chain .
