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  • This is view inside a cluster of elongated sculpin eggs (Alcichthys elongatus). The eggs were relatively fresh when photographed, just beginning to develop. Photographed at four times life-size magnification. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
  • This is a cluster of elongated sculpin eggs (Alcichthys elongatus). The eggs were relatively fresh when photographed, just beginning to develop. Photographed at four times life-size magnification. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
  • This is a close-up view taken at four times life-size magnification of developing elongated sculpin (Alcichthys elongatus) eggs. The eye of a well-developed embryo is visible, as is an eye that is just beginning to take form in another egg. The egg that is entirely white is unviable, perhaps because it was not properly fertilized. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
  • This is a male elkhorn sculpin (Alcichthys elongatus) watching over a carpet of bright yellow eggs. This fish and his eggs were in a pocket hidden among rocks, accessible only via a narrow crevice of about 10cm in height. This species reproduces via internal gametic association, meaning copulation takes place, but fertilization only occurs when females spawn the eggs and contact with seawater happens. The Japanese name is Niji-kajika. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
  • This is a 40cm male elkhorn sculpin (Alcichthys elongatus) protecting his yellow eggs, which are adhered to the surface of the large rock above him. Clutches of eggs are in various stages of development. This species reproduces via internal gametic association, meaning copulation takes place, but fertilization only occurs when females spawn the eggs and contact with seawater happens. The Japanese name is Niji-kajika. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
  • This is a male elkhorn sculpin (Alcichthys elongatus) watching over a carpet of bright yellow eggs. This is a difficult scene to document, as males of this species select tight crevices for their reproductive dens, sites characterized by cramped, restricted access. This species reproduces via internal gametic association, meaning copulation takes place, but fertilization only occurs when females spawn the eggs and contact with seawater happens. The Japanese name is Niji-kajika. Photographed in Hokkaido, Japan.
    alcichthys-elongatus-elkhorn-sculpin...tif
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Tony Wu Underwater Photography

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