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Article: Findings from Hiroshima University broaden understanding of zoology.
- Article from:
- Science Letter
- Article date:
- September 29, 2009
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According to a study from Japan, "The population dynamics of Branchiostoma japonicum, formerly known as B. belcheri, were investigated from September 2003 to August 2005 in the intertidal zone at Takehara (Hiroshima Prefecture), Seto Inland Sea, Japan. The intertidal population appeared from spring to autumn and disappeared during winter."
"A laboratory experiment showed that exposure to temperatures below 1 degrees C for 2 hours resulted in severe mortality. This low temperature corresponds to the minimum temperature in sediments in the study area. This result suggested either that the intertidal population collapses in winter because of low temperature, or that ...
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