The kinds of aquatic invertebrates in freshwater systems include protozoans (single cell animals), freshwater sponges, various types of worms, mollusks (snails, clams, freshwater mussels), and arthropods (animals with jointed legs such as spiders, mites, crustaceans, and insects).
Freshwater invertebrates (insects, crustaceans, snails, worms and other small critters) are often used as indicators of the state of streams, rivers, lakes and ... |
These animals include insects, crustaceans such as freshwater crayfish (koura), molluscs such as snails and mussels, worms and leeches. |
Freshwater invertebrates · Amphibians and reptiles · Algae · Birds · Ferns · Fish · Flowering plants · Fungi · Lichens ... |
The most widespread and species-rich groups of freshwater invertebrates are the insects, crustaceans, mollusks, mites, nematodes, and rotifers. |
Freshwater invertebrates are at the bottom of the food chain and are the staple diet for many other important aquatic organisms, such as salmon and trout. |
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