Evaluation of five
microalgae diets for juvenile pen shells Atrina maura
M.C. Lora-Vilchis, E. Ruiz-Velasco-Cruz, T.
Reynoso-Granados, D. Voltolina-2004
Journal of the World Aquaculture Society, 35(2):
232-236 (from ISI Current
Contents)
Abstract:
Juvenile pen shells Atrina maura were fed for 21 d with equal daily rations,
equivalent to 6.5% of their live weight, of monoalgal cultures of
Tetraselmis suecica, Isochrysis galbana, Chaetoceros muelleri, Chaetoceros
calcitrans, and Thalassiosira pseudonana. Pen shell survival was 100% in all
cases. All microalgae diets produced shell growth, and live and ash-free dry
weight increases. However, the two Chaetoceros strains gave significantly
better results, with shell height increases of 4.7 to 2.9 mm, live weight
gains of 0.5 to 0.3 g, and final ash-free dry weights of 0.16 to 0.14 g
after 3 wk. These results are not related to the algae gross biochemical
composition, suggesting that other factors are involved in their nutritional
value for this mollusc species.
(CIBNOR, Lab UAS, POB 1132, Mazatlan Sinaloa 82000,
Mexico)