Seasonal Changes of Biochemical Composition in Muscular and Visceral Parts of Short-Neck Clam, Ruditapes philippinarum.

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  • 北部九州産アサリ（Ｒｕｄｉｔａｐｅｓ　ｐｈｉｌｉｐｐｉｎａｒｕｍ）の筋肉部分と内臓部分の一般成分の周年変化
  • ホクブ キュウシュウサン アサリ Ruditapes philippinaru
  • 北部九州産アサリ (Ruditapes philippinarum) の筋肉部分と内蔵部分の一般成分の周年変化

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Abstract

Seasonal changes in the soft body and biochemical composition of total tissues and parts of viscera and muscle of short-neck clam were studied with special reference to season for the table of this short-neck clam. The specimens were collected from the clam bed in Hakata Bay for one year.<BR>The seasonal range of fluctuation throughout the year in contents of water, protein, lipid and ash was small, while that of sugar, mainly glycogen, was large. Content of sugar was high from March to September with the exception of June.<BR>The soft body parts of short-neck clam were separated into two parts, viscera (gonad, digestive gland, stomach and intestine) and muscle (mantle, siphon, foot, gills and adductors). The wet weight ratio of vicera to total soft body increased form March to reach a maximum in October and then decreased to reach a minimum in December.<BR>From the results of biochemical composition we assumed that season for the table of shortneck clam in Hakata Bay is from March to September, except June.

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