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Title: Larval Growth and Metamorphosis of Conus (Castropoda: Toxoglossa) in Hawaii
Authors: Perron, Frank E.
Issue Date: Jan-1981
Publisher: University of Hawai'i Press
Citation: Perron FE. 1981. Larval growth and metamorphosis of Conus (castropoda: toxoglossa) in Hawaii. Pac Sci 35(1): 25-38.
Abstract: The planktotrophic larvae of Conus lividus, C. quercinus, C.
flavidus, C. striatus, and C. marmoreus were reared through metamorphosis in
the laboratory and were described and figured . Minimum planktonic periods
of these species were found to be 50, 30, 23, 20, and 10 days, respectively. The
lecithotrophic larvae of C. pennaceus metamorphosed within 24 hours of
escape from their egg capsules. Early post-hatching growth rate s of planktotrophic
veligers were related to hatching size and the developmental state of
the velum at hat ching. In C. pennaceus, metamorphosis was induced by the
presence of a biological film. Substratum texture had no effect on rates of
metamorphosis. The lecithotrophic larvae of C. pennaceus were observed to
ingest unicellular algae. Experiments showed that this facultative feeding may
improve the survival of C. pennaceus when the larval period is artificially
prolonged.
URI/DOI: http://hdl.handle.net/10125/536
ISSN: 0030-8870
Appears in Collections:Pacific Science Volume 35, Number 1, 1981



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