Table 1.
Filtration and ingestion rates of A. franciscana nauplii and juveniles, after 2 and 5 days of exposure, respectively, to different concentrations of plastic fluorescent red polymer microspheres (FRM): CTRL (0 mg L−1) FRM0.4 (0.4 mg L−1) and FRM1.6 (1.6 mg L−1).
| CTRL | FRM0.4 | FRM1.6 | p-value | ||
|---|---|---|---|---|---|
| Nauplii | Individual filtration rate (mL/ind/h) | 182.597 ± 22.012 | 166.943 ± 21.394 | 164.988 ± 26.839 | 0.17 |
| Individual ingestion rate (cel/ind/h) | 9.548×106 ± 5.911×105 | 9.477×106 ± 5.686×105 | 9.490×106 ± 1.016×105 | 0.24 | |
| Juvenile | Individual filtration rate (mL/ind/h) | 562.333 ± 108.080 | 595.750 ± 104.803 | 624.500 ± 22.752 | 0.65 |
| Individual ingestion rate (cel/ind/h) | 4.708×107 ± 8.960×105 | 4.699×107 ± 1.141×106 | 4.799×107 ± 1.148×105 | 0.31 |
Values are expressed as means ± standard deviation (SD; N = 25 for nauplii per treatment and N = 12 for juvenile per treatment). p-values from one-way ANOVA (p > 0.05).