Long-term silver effects on the marine gastropod Crepidula fornicata
Nelson, D.A.; Calabrese, A.; Greig, R.A.; Yevich, P.P.; Chang, S. (1983). Long-term silver effects on the marine gastropod Crepidula fornicata. Mar. Ecol. Prog. Ser. 12: 155-165. http://dx.doi.org/10.3354/meps012155
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, more
|   |
| Keywords |
Biological phenomena > Accumulation > Bioaccumulation
Chemical elements > Metals > Transition elements > Heavy metals > Copper
Chemical elements > Metals > Transition elements > Heavy metals > Silver
Pathology > Histopathology
Reproduction > Sexual reproduction
Crepidula fornicata (Linnaeus, 1758) [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Nelson, D.A.
- Calabrese, A.
- Greig, R.A.
|
|
|
| Abstract |
The marine gastropod C. Fornicata was exposed for 24 mo to 1, 5, and 10 mu g l-1 silver as the nitrate. Chronic sublethal exposure of 120 mating pairs demonstrated some effects of silver on reproductive behavior of both a parental stock and an F1 generation. At least 5 paris from each silver-exposed group and control group were observed for egg production and larval release. The number of spawnings per female and number and size of larvae at each release were recorded. Parental C. Fornicata exposed to silver for 6, 12, and 24 mo were analyzed for body burdens of silver and copper. F1 C. Fornicata exposed for 24 mo were analyzed similarly. Larval releases int he parental stock of C. Fornicata were significantly reduced in the 10 mu g l-1 silver-exposure group. The average number of larvae at each release of the parental stock was higher in the l mu g 1-1 group than either the controls or other exposure groups, while larval size was similar for all groups. |
|
