Research Article
A Stage-Structured Fishery Model for African Catfish and Nile Tilapia Feeding on Two Food Resources with Harvesting
Table 5
Parameters for African catfish, denoted
in our model description. MA is an abbreviation of model assumption.
| Parameter | Definition | Value | Unit | Source |
| | Birth size | 0.02 | g | [55] | | Maturation size to large juveniles | 10 | g | MA | | Maturation size to small adults | 190 | g | [46, 62] | | Maturation size to large adults | 6000 | g | MA | | Reproduction fraction | 0.5 | ā | MA | | Natural mortality rate | | day-1 | [52] | | Maintenance rate | | day-1 | [48, 50] | | Half saturation constant | | g/L | [53, 54] | | Maximum ingestion rate for juveniles | | day-1 | [49, 51] | | Maximum ingestion rate for adults | | day-1 | [23] | | Conversion efficiency rate | 0.5 | ā | [50] |
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