TY - JOUR
T1 - Experimental rearing of the sea urchin Paracentrotus lividus fed with discards of the lettuce Lactuca sativa in a sea-based system
AU - Mazzola, Antonio
AU - Vaccaro, Antonino
AU - Vizzini, Salvatrice
AU - Vizzini, Salvatrice
AU - Mazzola, Antonio
AU - Visconti, Giulia
PY - 2018
Y1 - 2018
N2 - Small-sized specimens (test diameter: 16.64 ± 0.93 mm, mean ± SE) of the sea urchin Paracentrotus lividus were fed with fresh discards of the lettuce Lactuca sativa during a 24-week experiment in a sea-based system. At the end of the experiment, stock survival was high (88.8 ± 6.6%). Sea urchin test diameter and total weight grew by 35% and 56%, respectively, while gonad somatic index, after an initial decrease, increased by 3.2%. Moreover, more than 90% of specimens achieved the gonad colour that the market demands. These results support the exploitation of L. sativa as the main ingredient in a manufactured diet for echinoculture of P. lividus. Employing diets formulated with discard ingredients, combined with a low-cost sea-based rearing system, could be a suitable approach for sustainable management of echinoculture.
AB - Small-sized specimens (test diameter: 16.64 ± 0.93 mm, mean ± SE) of the sea urchin Paracentrotus lividus were fed with fresh discards of the lettuce Lactuca sativa during a 24-week experiment in a sea-based system. At the end of the experiment, stock survival was high (88.8 ± 6.6%). Sea urchin test diameter and total weight grew by 35% and 56%, respectively, while gonad somatic index, after an initial decrease, increased by 3.2%. Moreover, more than 90% of specimens achieved the gonad colour that the market demands. These results support the exploitation of L. sativa as the main ingredient in a manufactured diet for echinoculture of P. lividus. Employing diets formulated with discard ingredients, combined with a low-cost sea-based rearing system, could be a suitable approach for sustainable management of echinoculture.
UR - http://hdl.handle.net/10447/298513
UR - http://www3.interscience.wiley.com/journal/118545114/toc
M3 - Article
VL - 49
SP - 631
EP - 636
JO - Aquaculture Research
JF - Aquaculture Research
SN - 1355-557X
ER -