Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

Can umbrella-stage Artemia franciscana substitute enriched rotifers for Cobia (Rachycentron canadum) fish larvae?
Nhu, V.C.; Dierckens, K.; Nguyen, T.H.L.; Tran, M.T.; Sorgeloos, P. (2009). Can umbrella-stage Artemia franciscana substitute enriched rotifers for Cobia (Rachycentron canadum) fish larvae? Aquaculture 289(1-2): 64-69. dx.doi.org/10.1016/j.aquaculture.2009.01.014
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622, more
Peer reviewed article  

Available in  Authors 

Keywords
    Aquaculture
    Cultures > Fish culture
    Developmental stages > Larvae
    Experimental culture
    Growth rate
    Hatching
    Properties > Chemical properties > Salinity
    Survival
    Artemia Leach, 1819 [WoRMS]; Artemia franciscana Kellog, 1906 [WoRMS]; Rachycentron canadum (Linnaeus, 1766) [WoRMS]; Rotifera [WoRMS]
    Marine/Coastal
Author keywords
    Cobia; Umbrella-stage; Artemia; Larvae culture

Authors  Top 
  • Nhu, V.C., more
  • Dierckens, K., more
  • Nguyen, T.H.L.
  • Tran, M.T.
  • Sorgeloos, P., more

Abstract
    Appropriate food of suitable nutritional value is crucial for first-feeding stages of the larvae of cobia Rachycentron canadum, a very fast growing marine fish species. Best survival and growth results in cobia larviculture have been reported with a starter diet of HUFA-enriched rotifers and -as mouth size permits - followed by freshly-hatched and eventually HUFA-enriched Artemia nauplii. Using the smaller-sized Vietnam Artemia franciscana (AF) strain instead of the Great Salt Lake A. franciscana strain, it has been shown that the rotifer-feeding period could be shortened with 3 days, resulting in significant improvements in larval survival and growth. This study verified the possibility to feed umbrella-stage Artemia for further shortening and eventually completely substituting rotifer start feeding. The experiment was conducted in 200-L tanks and lasted 18 days. AF umbrella Artemia was used as sole feed during the whole rotifer feeding period (UAF), compared to the use of enriched rotifers for the first 2 days followed by AF-umbrella (ER + UAF) and the use of enriched rotifers as control (ER). The feeding incidence of UAF treatments was significantly lower (P < 0.05) in the 1st feeding day, however, the ingestion and digestion of AF were evident. Growth and survival as well as deformities at day 18 post-hatching were not significantly different for all treatments (P > 0.05). The viability of cobia larvae after exposure to high salinity stress was lower in the ER treatment at day 8 post-hatching, but higher at day 18 post-hatching (P < 0.05). The ability of cobia larvae to ingest and digest AF umbrella at first feeding as well as the nutritional suitability of AF umbrella is discussed. The possibility to use umbrella-stage Artemia opens an opportunity to simplify the rearing protocol and to reduce production costs of cobia larviculture.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors