イカの利用に関する研究-III : スルメイカ魚体の各部分比およびその組成の季節的変化について

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概要

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• In the previous paper1), regarding the seasonal changes in gravimetric constitution of the cuttle-fish caugth in the sea near HAKODATE and seasonal variations in chemical composition of various parts of it, it was reported that there were no seasonal variations in the ratio of weight of each part, except viscera, to the body weight, and a considerable change was observed in the fat content of the liver. Such investigations were also made on the cuttle-fish caught in the sea adjacent HAKODATE by MATSUURA et al2), 3) and by OKUDA et al4), but the details of the investigations on the cuttle-fish caught in any other fishing area have not been described. Accordingly, the present investigations were carried out on the cuttle-fish caught in the sea near MIE prefecture from March, 1958 to May, 1959. And the results obtained were as follows. The increase of body-lenght and -weight from May to September was large, a low increase of body-lenght and -weight appearing from November to March. There was a considerable seasonal variation in the ratio of weight of the viscera to the body, gravimetric constitution of the viscera changing extremely during November-March (Tables 2 and 3). As to the seasonal variations of chemical composition, noticeable changes were shown in contents of moisture, total nitrogen and fat in the viscera and the liver. Both the viscera and the liver had maximum fat content in November, contrasting with minumum contents of moisture and total nitrogen in this month (Table 4).

• 公益社団法人 日本水産学会の論文

著者

• 高橋 喬

  三重県立大学水産学部

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• イカの利用に関する研究-III : スルメイカ魚体の各部分比およびその組成の季節的変化について
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