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A biochemical investigation on the natural diets of the long spined-sea urchin Diadema setosum
2019
Nippon Suisan Gakkaishi
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The long-spined sea urchin Diadema setosum is assumed to contribute to rocky-shore denudation. In order to investigate their natural diets, D. setosum was reared for one year with exclusive feeding of a brown alga Ecklonia cava, and digestive enzyme activities and carbon and nitrogen stable isotope ratios were compared between the reared and wild individuals. No notable growth was observed in the reared individuals. Speciˆc activities in 11 of 13 digestive enzymes of reared individuals were
doi:10.2331/suisan.19-00015
fatcat:azga5mazxrce5ltr2awcke4zhe