Wet weight

Squid

Biology

Animal science

Fishery

Endocrinology

Economics

Botany

Shrimp

Food consumption

Zoology

Crustacean

Agricultural economics

Dry weight

Journal of Experimental Marine Biology and Ecology

Consumption and digestibility rates of four food items (sea star: Luidia sarcii and Astropecten aranciacus, squid: Nototodarus sloanii, shrimp: Parapenaeus longirostris and fish: Boops boops) by the marine gastropod Charonia seguenzae were studied. The food with the greatest mean daily consumption in wet weight was the sea star with 24.03 ± 2.69 g, followed by fish (11.36 ± 3.74 g), shrimp (9.52 ± 1.21 g) and squid (7.36 ± 2.16 g). Absorption rate was higher when squid was consumed (97.1 ± 3.7%, dry weight) followed by shrimp (93.5 ± 4%), fish (87.8 ± 8.6%) and sea star (45 ± 15.3%). Although squid absorption was higher, due to high consumption rates against sea star and fish, energy input did not differ significantly. Tritons absorbed a large proportion of ash only when consuming sea star. Results indicate that C. seguenzae can adapt well in captivity conditions by efficiently digesting alternative foods. Furthermore, a low metabolism is indicated by its low transit that needs 6 to 8 days to digest food consumed from a single feeding.

Consumption rates and digestibility of four food items by the marine gastropod Charonia seguenzae (Aradas &amp; Benoit, 1870)

Consumption rates and digestibility of four food items by the marine gastropod Charonia seguenzae (Aradas &amp; Benoit, 1870)

Consumption rates and digestibility of four food items by the marine gastropod Charonia seguenzae (Aradas & Benoit, 1870)