The water content and organic matter varied among the six food
treatments (Table 1). M. pyrifera had the highest water content, and
the sponge I. tubiforme had the lowest value (89.5% ± 0.29% and
76.1% ± 1.10%, respectively). For the organic matter, Porphyra sp. had
the highest value and the sponge I. tubiforme had the lowest value
(77.5% ± 0.90% and 24.3% ± 1.26%, respectively).