Induction of larval
settlement and metamorphosis of the abalone, Haliotis discus hannai
larvae using bromomethane and potassium chloride
K.H. Kang, B.H. Kim, J.M. Kim-2004
Aquaculture, 230(1-4): 249-259
Abstract:
Larvae of Haliotis discus hannai were induced
to settle and metamorphose by exposure to seawater supplemented with
bromomethane. The settlement and metamorphosis of veliger larvae were
observed with bromomethane concentrations of 300, 600, 900, 1200, 1500 ppm
on the benthic diatom plates. The highest settlement and metamorphosis rates
of larvae were observed in bromomethane concentrations of 600 ppm.
Abalone larvae were induced to settle and
metamorphose by exposure to seawater supplemented with potassium chloride.
The settlement and metamorphosis of veliger larvae was observed in potassium
chloride concentrations of 14, 19, 24 and 29 mM on the benthic diatom
plates. The highest settlement and metamorphosis rates of larvae were
observed in potassium chloride concentrations of 14–19 mM.