Historically the marsh supported an extremely diverse wetlands ecosystem, with a variety of primary productivity plants including pickleweed, eelgrass and giant bulrush (Scirpus californiens). There has also been historically significant fish, mammal, amphibian and avafauna.
The marsh has historically hosted a remarkably diverse array of plant species, including primary producers such as pickleweed, eelgrass, and giant bulrush (Scirpus californiens), alongside significant numbers of fish, mammals, amphibians, and birds.