Skip to main content

Free Content Growth, survival and fatty acid profile of Nereis diversicolor (O. F. Müller, 1776) fed on six different diets

Download Article:
(PDF 482.390625 kb)
Cultured Nereis diversicolor are used as food for flat fish and shrimp on aquaculture farms. In order to improve cultures of N. diversicolor we determined the growth and survival rates of juvenile worms fed with six different diets for 60 d in the laboratory. Experiments were carried out with 1 mo old worms and fed every other day ad libitum. The six diets were: decapsulated Artemia cysts, sea bream dry food, Lansy (diet for late post larval stage of shrimp), Tetramin (fish dry food), extruded soy and pollen. The photoperiod was adjusted to 16L:8D with an average light intensity of 175 Lux. Temperature and salinity were maintained at 20 ± 2°C and 15‰, respectively. Three replicates were setup for each treatment with six individuals per replicate. Worms fed Lansy had the highest daily growth rate (13.94 mg d−1) and 100% survival rate. Each type of food was analyzed for organic matter, caloric and total lipid content. The organic matter content of sediments was also analyzed. No direct relationship between growth and dietary type was noted. The fatty acid content of the worms was related to the specific diet. Higher levels of the total lipids, DHA (docosahexaenoic acid) and EPA (eicosapentanoic acid) were more closely related to the 1 mo old juvenile worms. However, when diets have a high DHA/EPA ratio, there does not appear to be any relationship to juveniles which seems to indicate that N. diversicolor does not have a high DHA requirement. In any event we believe that higher HUFA (high unsaturated fatty acid) levels (mainly EPA and DHA) result in higher survival rates and better growth rates.
No References for this article.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 2000-07-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more