In very high densities (algal blooms), these algae may discolor the water and outcompete, poison, or asphyxiate other life forms.
ɪn vˈɛɹi hˈaɪ dˈɛnsᵻɾiz ˈælɡəl blˈuːmz, ðiːz ˈælɡiː mˈeɪ dɪskˈʌlɚ ðə wˈɔːɾɚ ænd aʊtkəmpˈiːt, pˈɔɪzən, ɔːɹ ɐsfˈɪksɪˌeɪt ˈʌðɚ lˈaɪf fˈɔːɹmz.