| 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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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. |
