Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 2

Gasterosteus aculeatus subsp. 1

Gasterosteus aculeatus subsp. 1

Gasterosteus aculeatus subsp. 1

Gasterosteus aculeatus subsp. 1

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Gasterosteus aculeatus (Linnaeus, 1758)

Fanning behavior of three-spined stickleback Gasterosteus aculeatus (2)