Publication Date:
2020-10-13
Description:
The time-scale of colour/pH changes in the caeca of 196 longfinned squid Loligo vulgaris reynaudii during digestion/absorption was tested at sea. Red, brown, dark, yellow, pale yellow and white were the recorded colours. The range of mean pH for these colours was 6,019-5,638. The time-span of the whole process in the field, at a mean pH being 5,756 for the dark yellow phase, 5,699 for the pale yellow and 5,638 for the white. It is suggested that sex, stage of maturity, size of animal, food type and meal volume have a negligible impact on the colour and pH in the caeca of the squid investigated and, therefore, on the duration of the digestion/absorption process of wild squid unter all circumstances, it requires further testing in aquaria as well as in the field.
Type:
Article
,
PeerReviewed
Format:
text
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