| Autor: |
Wen Yuh Lee, J.A.C. Nicol |
| Rok vydání: |
1980 |
| Předmět: |
|
| Zdroj: |
Marine Environmental Research. 3:297-305 |
| ISSN: |
0141-1136 |
| DOI: |
10.1016/0141-1136(80)90042-2 |
| Popis: |
Experiments were carried out on the toxicity of a fuel oil to developing embryos and juveniles of two marine amphipods. Parhyale hawaiensis eggs were able to develop from early germinal disc stage (early eggs) to juvenile form in concentrations of 10 (2 ppm) up to 40% (8 ppm) WSF, but deleterious effects were evident in hatching success of eggs and survival of juveniles at concentrations ≥ 10% WSF. The juveniles that hatched from those eggs in higher WSFs had greater mortality than the juveniles that hatched from the eggs exposed to lower WSFs. Survival of juveniles from late eggs (cephalic region differentiated) was also greater than those from early eggs. Amphithoe valida eggs were more sensitive to the WSF of fuel oil than the eggs of P. hawaiensis; < 10% of the test eggs hatched in the 4 ppm WSF compared with 66% of P. hawaiensis eggs at the same concentration. The toxicity of fuel oil to the two amphipod eggs is therefore dependent on the concentration and duration of exposure on the one hand, and on the developmental stages and probably the nature of the egg case on the other. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
