1. Waters of the lake host rare species, some of them even extinct like Isoetes lacustris . 2. Researchers have found that during mating " Gammarus lacustris " expresses high levels of serotonin. 3. Another experiment found that serotonin also reduces the photophobic behavior in " Gammarus lacustris ". 4. As a small aquatic invertebrate " G . lacustris " is an important food source for many organisms. 5. Birds, fishes, and some insects have been known to prey upon " G . lacustris ". 6. Plants that have been used in temperate climates include " Schoenoplectus lacustris " and " Carex acutiformis ". 7. Almost all the species are marine, with a single freshwater species, " Amarinus lacustris " ( Hymenosomatidae ). 8. It typically exhibits diel migration of " G . lacustris ", making it more visible and susceptible to predation. 9. Another plant native to the area of Plum Island is the endangered dwarf lake iris ( " Iris lacustris " ). 10. It is based on holotype YPM 10624, a tooth close in form to the holotype of " P . lacustris " but somewhat larger.
