Observational studies at the Rose Garden (Galapagos Rift) in 1979 and 1985 showed that although pattern of venting remained approximately the same over the six year period, “virtually all” of the faunal groups had undergone dramatic changes of some sort.
Hessler et al., Temporal Change in Megafauna at the Rose Garden Hydrothermal Vent (Galapagos Rift; Eastern Tropical Pacific), 1988
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