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Table 1

Sardine biomasses resulting from realistic management scenarios using two ecosystem models. DOI: https://doi.org/10.1525/elementa.338.t1

MICEAtlantisc

Sardine biomass categories by range of model predictionsa (tons)Proportion of model runsbSardine biomass (tons)Multiplier of fishing mortality

 
2.8–121 million 0.42 3.7 million 0.0 
1.4–2.8 million 0.16 1.9 million 0.5 
628,000–1.4 million 0.12 960,000 1.0 
171,000–628,000 0.10 290,000 2.0 
26,000–171,000 0.07 50,000 4.0 
0–26,000 0.13 3,000 8.0 
MICEAtlantisc

Sardine biomass categories by range of model predictionsa (tons)Proportion of model runsbSardine biomass (tons)Multiplier of fishing mortality

 
2.8–121 million 0.42 3.7 million 0.0 
1.4–2.8 million 0.16 1.9 million 0.5 
628,000–1.4 million 0.12 960,000 1.0 
171,000–628,000 0.10 290,000 2.0 
26,000–171,000 0.07 50,000 4.0 
0–26,000 0.13 3,000 8.0 

a Biomass outputs by the MICE are the results of 100,000 stochastic realizations using the existing harvest rule (Punt et al., 2016b); results are binned into biomass categories.

b Relative proportion or frequency of biomass categories.

c To achieve sardine biomasses that also fell within the MICE biomass categories, the deterministic Atlantis model (Kaplan et al., 2017) was forced by constant sardine fishing rates, yielding biomasses based on the fishing rate multipliers.

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