ɐ vˈɛɹid fˈɔːnə ænd flˈoːɹə ɛɡzˈɪsts ɐlˈɔŋ ðə jˈæmæskə, ɹᵻflˈɛktɪŋ ðə vˈɛɹiəs ɹˈiːdʒənz ɪt tɹɐvˈɜːsᵻz; spˈiːsiːz ʌv bˈɜːdz, fˈɪʃ, æmfˈɪbiənz, ɹˈɛptaɪlz, mˈæməlz, kɹʌstˈeɪʃənz, ˈɪnsɛkt, fˈʌŋɡi, lˈaɪkən, ˈælɡiː ænd mˈɛni mˈoːɹ pˈɑːpjʊlˌeɪt ɪts wˈɔːɾɚz, bˈæŋks, ænd sɚɹˈaʊndɪŋ mˈɑːɹʃᵻz.
A varied fauna and flora exists along the Yamaska, reflecting the various regions it traverses; species of birds, fish, amphibians, reptiles, mammals, crustaceans, insect, fungi, lichen, algae and many more populate its waters, banks, and surrounding marshes.