Open AccessEvaluation of Seven Algal Diets for Spat of the Pacific Scallop Argopecten ventricosus
Author(s) -
LoraVilchis Ma. Concepcioan,
Doktor Natalia
Publication year - 2001
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.2001.tb01100.x
Subject(s) - isochrysis galbana , biology , scallop , zoology , ingestion , composition (language) , algae , botany , nutrient , fishery , ecology , biochemistry , linguistics , philosophy
The nutritive value of Isochrysis galbana (Tahitian), Chaetoceros calcitrans, Chaetoceros muel‐leri . and their bi‐ and trialgal combinations for Pacific scallop Argopecten ventricosus spat culture was studied. Ingestion rate, growth, survival, and biochemical composition were the variables evaluated. Growth results showed C. calcitrans and I. galbana + C. calcitrans diets have the best nutritive values. Poorest results were obtained with I. galbana diet. The acceptability and a high lipid content of C. calcitrans could explain the good results of C. calcitrans and I. galbana + C. calcitrans diets along with a better balanced diet effect in the bialgal mixture. The low growth of the scallops using the C. calcitrans + C. muelleri diet, despite the high ingestion rate, is explained by a low energy content and an unbalanced nutrient supply. The gross biochemical composition of the diets did not show a clear relationship to spat gross biochemical composition.