RSB teaching resources; Browse Nuffield teaching resources. This is known as an indicator species. The indicator species showing higher levels of pollution, such as the water louse, may also be present in cleaner water. Monitoring water pollution with invertebrate indicator species Class practical This is a fieldwork exercise that involves sampling water from streams (ideally) or ponds, in two different situations. Practical Physics; Practical Chemistry; Practical Work for Learning; Science in Society; STEM projects; Mathematical Processes (AMP) Free-standing mathematics The different pollution intensities (saprogenic stages) are related to certain indicator organisms (e.g., bacteria, fungi, algae, amoeba, mussels, worms, insect larvae, and fishes) and ranges from polysaprobic (very highly polluted), α-mesosaprobic (highly polluted), β-mesosaprobic (medium polluted) to oligosaprobic (rather clean and clear water).


Monitoring water pollution with invertebrate indicator species; Browse RSB resources. The level of pollution in air or water can be indicated by the species living there.

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