Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Some Effects of Early Starvation on the Survival and Development of Barnacle Nauplii, 'Balanus improvisus' (Darwin).
Author Lang, W. H. ; Marcy, M. ;
CORP Author Rhode Island Univ., Kingston. Dept. of Food Science and Technology.;Environmental Research Lab., Narragansett, RI.
Year Published 1982
Report Number EPA-R-808954; EPA-600/J-81-275 ; ERLN-226
Stock Number PB84-201938
Additional Subjects Starvation ; Barnacles ; Survival ; Development ; Shellfish ; Nutrition ; Mortality ; Molting ; Reprints ; Balanus improvisus
Library Call Number Additional Info Location Last
NTIS  PB84-201938 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 11p
Newly hatched stage I-II nauplii of Balanus improvisus (Darwin) were 'totally starved' (until death) or 'partially starved' for the first 48 h and 96 h of their development. Daily mortality and molting were monitored throughout larval development in both starved and fed control groups. Fed control animals exhibited a largely synchronous molting pattern with instars of equal duration. Total starvation suppressed molting beyond stage II; 50% mortality occurred in 4 days at both 15 and 21C, while longest survival time was 7 days at 15C and 6 days at 21C. At 15C, partially starved nauplii retained the ability to complete naupliar development but at a slower overall rate and with increased mortality relative to controls. These effects were more pronounced in the 96-h group. Increased mortality of stage VI nauplii was evident in both partially starved groups (u.1% for 48h, 18.8% for 96h) relative to unstarved controls (3.1%). Stage II nauplii exhibited little resistance to starvation and survival potential may have decreased as soon as 24h.