Simple regression equation |

Estimated by Abe’s equation (nine sites) | 1.029 (30.0) | 1.003 (45.7) |

Estimated by Abe’s equation (six sites) | 1.033 (27.0) | 1.005 (40.0) |

Estimated by Abe’s equation (abdomen) | 1.039 (25.7) | 1.015 (35.1) |

Estimated by this study (nine sites) | 1.044 (23.8) | 1.025 (31.7) |

Estimated by this study (six sites) | 1.043 (24.1) | 1.026 (31.4) |

Estimated by this study (abdomen) | 1.044 (23.8) | 1.026 (31.4) |

Multiple regression equation |

Estimated by this study | 1.044 (23.8) | 1.026 (31.3) |

Estimated by underwater weighing method | 1.044 (23.8) | 1.026 (31.3) |