Table 1 Biological attributes of different E. braziliensis populations throughout its distribution range, extracted from the following sources. Panama: Dexter (1977) and Glynn et al. (1975); Peru: Bocanegra et al. (1986) and Bocanegra and Oliva (1987); Brazil: Fonseca et al. (2000); Chile: Zúñiga et al. (1985); Uruguay: this paper and Defeo and Martínez (2003). For Peru, only a mean estimate of surf temperature was available
Population features | Panama (8°55′N) | Peru (8°11′S) | Brazil (23°02′S) | Chile (23°27′S) | Uruguay (34°36′S) |
|---|---|---|---|---|---|
Ocean | Pacific | Pacific | Atlantic | Pacific | Atlantic |
Range of surf water temperature (°C) | 22–29 | 17 | 20–32 | 14–27 | 10–23 |
Mean density (ind. m−2) | 1,214 | 709 | 223 | 81 | 80 |
Ovigerous females (%) | 2 | 15 | |||
Largest ovigerous (mm) | 4.7 | 9.1 | 8.9 | 9.0 | 11.5 |
Size range ovigerous females (mm) | 2.9–4.7 | 4.6–8.9 | 4.0–9.0 | 7.6–11.5 | |
Size at maturity (mm) | 5.00 | 6.90 | 9.88 | ||
Reproductive season (months) | 9 | 5 | 11 | 9 | 4 |
Recruitment season (months) | 12 | 12 | 12 | 11 | 4 |
Incubation period (months) | 3.0 | 1.0 | |||
Fecundity (no. of embryos) | 4–17 | 11–41 | 2–27 | 10–27 | 7–42 |
Mean egg size (mm) | 0.78 | 1.02 | |||
Mean stage IV size (mm) | 2.00 | 2.42 |