To detect these changes, algae can be sampled from the environment and maintained in laboratories with relative ease.
tə dɪtˈɛkt ðiːz tʃˈeɪndʒᵻz, ˈælɡiː kæn biː sˈæmpəld fɹʌmðɪ ɛnvˈaɪɹənmənt ænd meɪntˈeɪnd ɪn lˈæbɹətˌɔːɹiz wɪð ɹˈɛlətˌɪv ˈiːz.