Record Display for the EPA National Library Catalog

RECORD NUMBER: 26 OF 27

OLS Field Name OLS Field Data
Main Title Vertebral Abnormalities in Juvenile Inland Silversides 'Menidia beryllina' Exposed to Terbufos during Embryogenesis.
Author Middaugh, D. P. ; Fournie, J. W. ; Hemmer, M. J. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL.
Publisher c4 Oct 90
Year Published 1990
Report Number EPA/600/J-90/382 ;CONTRIB-695;
Stock Number PB91-163956
Additional Subjects Marine biology ; Teratogens ; Pathology ; Larvae ; Reprints ; Menidia beryllina ; Terbufos ; Vertebral abnormalities ; Organophosphorus insecticides
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-163956 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/13/1991
Collation 10p
Abstract
Embryos of the inland silverside, Menidia beryllina, were exposed to a nominal concentration of 50 micrograms terbufos/1 during the first five days of embryogenesis. Silversides were maintained in clean dilute seawater until 37 days after hatching. Radiographs revealed compressed and fused vertebrae and dorsal-ventral misalignment of pre- and postzygapophyseal processes. Histopathological examination of individuals exposed to terbufos during embryogenesis revealed various vertebral lesions ranging from small hyperostoses to almost complete fusion of some vertebrae.