I’d guess other forage fish’s life histories will give you a general idea of bristlemouths’ life histories.
About Peruvian anchoveta, one of the most wild-caught fish, representing 28% of the number of fish caught annually on average (Mood & Brooke, 2024), Molina-Valdivia et al. (2020) write:
Early larval growth and mortality of anchoveta is highly variable at intra-seasonal and latitudinal scales along the Chilean coast. In northern Chile (23 °S), larval growth varies between 0.50- and 0.85-mm day−1, with daily losses of 16–23% (Contreras et al., 2017); meanwhile, in central Chile (36 °S), larvae grew at 0.40-0.57 mm day−1, with daily losses of 4–7% (Castro and Hernández, 2000; Hernández and Castro, 2000).
See also Fig. 4. H (and G for another species) for the drop in abundance over time as larvae, leaving less than 1% after 40 days according to their fitted model.
Butler et al. (1993, Tables 1, 2, 3 and 4) report fecundity and mortality estimates for northern anchovies (Engraulis mordax) and Pacific sardines (Sardinops sagax) at various life stages. A female northern anchovy spawns 5.3 to 23.5 times per year, 4,000 to 14,000 eggs each time. I have some calculations for mortality rates at various life stages based on this paper here.
I’d guess other forage fish’s life histories will give you a general idea of bristlemouths’ life histories.
About Peruvian anchoveta, one of the most wild-caught fish, representing 28% of the number of fish caught annually on average (Mood & Brooke, 2024), Molina-Valdivia et al. (2020) write:
See also Fig. 4. H (and G for another species) for the drop in abundance over time as larvae, leaving less than 1% after 40 days according to their fitted model.
Butler et al. (1993, Tables 1, 2, 3 and 4) report fecundity and mortality estimates for northern anchovies (Engraulis mordax) and Pacific sardines (Sardinops sagax) at various life stages. A female northern anchovy spawns 5.3 to 23.5 times per year, 4,000 to 14,000 eggs each time. I have some calculations for mortality rates at various life stages based on this paper here.