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Ingestion of Artemia nauplii by Chinese mitten crab Eriocheir sinensis zoea larvae
Sui, L.Y.; Wille, M.; Wu, X.G.; Cheng, Y.X.; Sorgeloos, P. (2009). Ingestion of Artemia nauplii by Chinese mitten crab Eriocheir sinensis zoea larvae. Aquac. Res. 40(8): 950-954. dx.doi.org/10.1111/j.1365-2109.2009.02189.x
In: Aquaculture Research. Blackwell: Oxford. ISSN 1355-557X; e-ISSN 1365-2109, meer
Peer reviewed article  

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Trefwoorden
    Artemia Leach, 1819 [WoRMS]; Eriocheir sinensis H. Milne Edwards, 1853 [WoRMS]; Rotifera [WoRMS]
Author keywords
    Eriocheir sinensis larvae; Artemia nauplii; rotifers; prey ingestion

Auteurs  Top 
  • Sui, L.Y.
  • Wille, M.
  • Wu, X.G.
  • Cheng, Y.X.
  • Sorgeloos, P.

Abstract
    A series of ingestion trials were conducted to determine the ingestion rate of Artemia nauplii by Eriocheir sinensis zoea larvae with increasing densities of Artemia and with or without rotifers as a co-feed. At each zoeal stage, 10 groups of 10 larvae were reared individually in glass beakers and fed with increasing densities of newly hatched Artemia nauplii (0.5, 2.5, 5, 10 and 20 individual (ind.) mL-1) with or without rotifers (15-25 ind. mL-1) as a co-feed. The average number of ingested Artemia was measured over 24 h. In addition, the average larval development rate (Larval Stage Index, LSI) over a longer period (time needed for the best treatment to reach 100% moult or metamorphosis to the next larval stage) was compared. The results showed that Artemia ingestion rate of E. sinensis larvae increased with increasing prey densities and larval development, and had a significantly negative correlation with rotifer consumption for all zoeal stages. Rotifers as an alternative prey significantly affected the intake of Artemia at early larval stages (Z1 and Z2) and promoted LSI at a lower Artemia density. Further experiments are needed to clarify the effect of prey density on survival and larval development when larvae are reared communally.

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