sea fan corals, 160–61
seagrass meadows
carbon sequestering by, 161, 194, 227n
conservation efforts, 151n, 152
discovery of, xiii
in prehistoric seas, 22
restoration efforts, 93, 179–80, 192–94, 200
Sargassum seaweed proliferation and, 191
SeaGrown, 245–46
seahorses, 25
sea lions, xiv, 23, 23n, 113–14, 175, 187
seals
chemical pollution and, 113–14, 119
food sources, 71–72
habitats of, 51
as orca food source, 111
in prehistoric seas, 23, 23n
recovering populations of, 134–35, 135n
shark attacks on, 92
sleeping habits of, xiiin, xiii, 135, 135n
sea otters
chemical pollution and, 116
eelgrass meadows and, 179–80
fur trade exploitation of, 175–76, 178
habitat of, 174–75
kelp forests and, 177–78, 184–86
in prehistoric seas, 22, 23
rewilding efforts, 176–77, 178–79, 184–86
sea turtles, 13–14, 16, 191, 234
sea urchins, 177–78, 177n, 178n, 180–86, 188, 196
sea walnuts, 35
Seaweed Generation (company), 192
seaweeds
biodiversity and, 172–73
conservation efforts, 147–48, 150–54, 151n
diversity of, 147, 150–51, 169–70, 169n, 190
farming, 244–46
kelp regrowth efforts, 169–86 (See also kelp forests)
run-off fertilizer and overgrowth of, 171
Sargassum proliferation, 190–92