IMIS | Flanders Marine Institute

Flanders Marine Institute

Platform for marine research


Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Palatability and fatality of the dinoflagellate Prorocentrum lima to Artemia salina
Ajuzie, C.C. (2007). Palatability and fatality of the dinoflagellate Prorocentrum lima to Artemia salina. J. Appl. Phycol. 19(5): 513-519.
In: Journal of Applied Phycology. Springer: Dordrecht. ISSN 0921-8971; e-ISSN 1573-5176, more
Peer reviewed article  

Available in  Author 

    Artemia Leach, 1819 [WoRMS]; Prorocentrum lima (Ehrenberg) F.Stein, 1878 [WoRMS]
Author keywords
    artemia; cell-free culture medium; nauplii survivorship; Prorocentrumlima

Author  Top 
  • Ajuzie, C.C., more

    Prorocentrum lima is a toxic alga that produces both intra-cellular and extra-cellular toxins, including okadaic acid (OA) and dinophysistoxins (DTXs). Nauplii of the brine shrimp Artemia salina were exposed to both the cell and cell-free culture medium of P. lima in order to test the hypotheses that the extra-cellular medium is toxic to brine shrimp and that the P. lima cell is palatable but fatal to it. Artemia cysts incubated in the cell-free medium hatched, but mortalities were recorded for nauplii that hatched in, and metanuaplii exposed to, test solutions (autoclaved filtered seawater + cell-free medium) that contained at least 50% of the cell-free medium. Animals exposed to cells of P. lima readily fed on the cells. Some, especially among the Day 1 nauplii, ingested only one cell before dying, while others ingested more than one cell, up to six cells in the case of Day 3 nauplii, before dying. Day 3 nauplii were readily and heavily impacted by the P. lima cells. Survival analysis was used to evaluate survivorship of Day 1 to Day 3 nauplii exposed to cells of P. lima. Estimates were made of tD50s for the different age groups. Comparisons of the tD50s showed that the tD50s for Day 1 and Day 2 nauplii did not vary significantly, but they each varied significantly from the tD50 for the Day 3 nauplii. The possible ecological implications of the findings are discussed.

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