The September issue delves into new science on how to identify plankton species by color, new surveys on the spread of invasive sea lavender, and surprising findings concerning PCB levels in small fish. It covers the disappointing end to a bid for Wild and Scenic River status for the Mokelumne, and the slow pace of restoration along Alameda Creek. Other stories discuss the impacts of drought on valley wildlife refuges, protocols to make Delta restoration projects more efficient, and a new film about Pelicans.