Record Display for the EPA National Library Catalog

RECORD NUMBER: 16 OF 17

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
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB84-201938 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 11p
Abstract
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.