The dorso-lateral pit organs of the Port Jackson shark contribute sensory information for rheotaxis |
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Authors: | M B Peach |
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Institution: | School of Biological Sciences, A08, University of Sydney, NSW, 2006, AustraliaM |
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Abstract: | Resting Port Jackson sharks Heterodontus portusjacksoni with dorso-lateral pit organs ablated oriented with a mean angle of 263° to the current direction in a flume. This was significantly different ( P <0·01) to controls (normal and sham operated) who had a pooled mean angle of 44° to the current. Thus the dorso-lateral pit organs of H. portusjacksoni , like the free neuromasts of some teleosts, provide sensory information for rheotaxis. |
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Keywords: | elasmobranch lateral-line neuromast behaviour |
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