Table 2.
Dermal mucus glucose, lactate and total proteins in P. mediterraneus captured by gillnet or hookline. Fish were sampled immediately after capture (0 h) or at times 24 h and 48 h after their introduction into floating sea cages. Data are expressed as mean ± SEM (n = 8–25 per group and time). Different lowercase letters indicate significantly different groups (p < 0.05, two-way ANOVA followed by a post hoc Tukey test).
| Parameter | Fishing Gear | 0 h | 24 h | 48 h |
|---|---|---|---|---|
| Glucose (mM) | Gillnet | 0.46 ± 0.06 b | 0.63 ± 0.06 a | 0.65 ± 0.04 a |
| Hookline | 0.72 ± 0.06 a | 0.37 ± 0.04 b | 0.45 ± 0.04 b | |
| Lactate (mM) | Gillnet | 0.14 ± 0.02 c | 0.62 ± 0.07 a | 0.45 ± 0.04 ab |
| Hookline | 0.15 ± 0.04 c | 0.43 ± 0.08 abc | 0.30 ± 0.03 bc | |
| Total proteins (g dL−1) | Gillnet | 0.86 ± 0.17 b | 0.66 ± 0.08 b | 0.91 ± 0.07 b |
| Hookline | 1.60 ± 0.36 a | 0.45 ± 0.10 b | 0.77 ± 0.07 b | |
| Peroxidase activity (U mL−1) |
Gillnet | 56 ± 10 bc | 87 ± 7 ab | 104 ± 8 a |
| Hookline | 87 ± 12 ab | 57 ± 13 bc | 38 ± 4 c | |
| Lysozyme activity (µg mL−1) |
Gillnet | 0.47 ± 0.15 ab | 0.66 ± 0.11 ab | 0.56 ± 0.11 ab |
| Hookline | 1.17 ± 0.41 a | 0.18 ± 0.09 b | 0.55 ± 0.09 ab |