Effect of dietary polyunsaturated fatty acids on reproductive output and larval growth of bivalves
Hendriks, I.E.; van Duren, L.A.; Herman, P.M.J. (2003). Effect of dietary polyunsaturated fatty acids on reproductive output and larval growth of bivalves. J. Exp. Mar. Biol. Ecol. 296(2): 199-213
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981; e-ISSN 1879-1697, more
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| Keywords |
Acids > Organic compounds > Organic acids > Fatty acids
Developmental stages > Larvae
Diets
Stocks > Brood stocks
Bivalvia [WoRMS]; Magallana gigas (Thunberg, 1793) [WoRMS]; Macoma balthica (Linnaeus, 1758) [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Hendriks, I.E., correspondent, more
- van Duren, L.A., more
- Herman, P.M.J., more
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| Abstract |
The pre-spawning condition of adult bivalves is influenced by quantity and quality of available food. For bivalves, the essential polyunsaturated fatty acids (PUFAs) eicosapentaenoic acid (EPA) 20:5(n-3) and docosahexaenoic acid (DHA) 22:6(n-3) are presumed to determine the nutritional value of algae. Macoma balthica kept on a broodstock diet supplemented with PUFAs spawned a larger number of eggs (average 22220) per female and larger sized eggs (106.7 μm) compared to adults kept on a diet without PUFA supplementation (962.5 eggs with average size 99.8 μm) Larvae of M. balthica from the same parental pool however did not profit from a diet where a part was replaced with PUFA spheres. Instead, larvae reared on Isochrysis sp. showed lower mortality and higher growth rates than larvae fed on the same algae supplemented with lipid spheres. Crassostrea gigas larvae showed no clear response to a PUFA supplemented diet. |
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