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Vibrant coloured male Three-spined stickleback, Gasterosteus aculeatus, in estuarine waters. Males get coloured like this during spawning season.
Photo ID: three-spined-stickleback-gasterosteus-aculeatus-02
© Eiko Jones 2020
Photo size: 26.7 Mpixels (76.3 MB uncompressed) - 6320x4218 pixels (21.1x14.1 in / 53.5x35.7 cm at 300 ppi)