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- Title
Assessment of the fecundity, population growth and fatty acid composition of <italic>Apocyclops royi</italic> (Cyclopoida, Copepoda) fed on different microalgal diets.
- Authors
Pan, Y.‐J.; Sadovskaya, I.; Hwang, J.‐S.; Souissi, S.
- Abstract
Abstract: The brackish cyclopoid copepod <italic>Apocyclops royi</italic> is used in Taiwanese aquaculture industry as a prey for fish larvae. This study investigated the effects of seven microalgal diets, namely single‐species diets of <italic>Isochrysis galbana</italic> (ISO), <italic>Nannochloropsis oculata</italic> (NAN), and <italic>Tetraselmis chui</italic> (TET), two‐species diets (ISO+NAN, ISO+TET and TET+NAN), and a three‐species diet (ISO+NAN+TET), on the population growth, female fecundity and fatty acid composition of <italic>A. royi</italic>. For reproductive traits, the combination ISO+NAN was found to be the most supportive diet for both population growth and female fecundity. For nutritional value, copepods fed ISO and ISO+NAN were detected to have the highest content of docosahexaenoic acid (DHA) (18.99% and 10.73% total fatty acid, respectively) and, more importantly, a high DHA/EPA ratio (6.09 and 4.09, respectively). Additionally, a comparison of fatty acid composition between copepods and microalgae gives a tentative indication that <italic>A. royi</italic> may have the ability to synthesize long‐chain polyunsaturated fatty acids (PUFA) from short‐chain PUFA. Our findings illustrate that ISO+NAN is the most suitable microalgal diet for mass culturing <italic>A. royi</italic> because it increases productivity and enhances the nutritional value of the copepods for use as fish larvae prey.
- Subjects
FATTY acid analysis; CYCLOPOIDA; MICROALGAE; AQUACULTURE; FISH larvae
- Publication
Aquaculture Nutrition, 2018, Vol 24, Issue 3, p970
- ISSN
1353-5773
- Publication type
Article
- DOI
10.1111/anu.12633