The brook stickleback is a small freshwater fish, typically measuring 2-3 inches and weighing up to 0.1 pounds. It features a slender body with five dorsal spines. Found in streams and ponds across North America, it feeds on small invertebrates. Known for its territorial behavior, the brook stickleback constructs nests and exhibits parental care. This summary is AI generated
Water type
IUCN Status
Threat to humans
Source: Fishbase
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Brook stickleback
length · weight
Brook stickleback
length · weight
Brook stickleback
length · weight
Brook stickleback
South Branch Kishwaukee River
length · weight
Brook stickleback
South Branch Kishwaukee River
length · weight
Brook stickleback
length · weight
Brook stickleback
length · weight
Brook stickleback
length · weight


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