![](http://www.alamy.com/thumbs/6/73C9B769-BDD4-4A49-B589-CC525B3BB0FA/MCKRT0.jpg)
. Fourspine stickleback Apeltes quadracus A S J L E Threespine stickleback Gasterosteus aculeatus r IâI- IâI JFMAMJJASOND JFMAMJJASOND Boston Harbor Cape Cod Bay North Atlantic Estuaries Relative Abundance ^â 1 Highly Abundant EH! Abundant I I Common Rare Blank Not Present na No data available Life Stage A - Adults S - Spawning adults J - Juveniles L - Larvae E - Eggs 87
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity