Fishery model influenced by pollution with optimal harvesting policy. Electronic Journal of Applied Mathematics, [S. l.], v. 3, n. 4, p. 20–34, 2025. DOI: 10.61383/ejam.202534114. Disponível em: https://ejamjournal.com/index.php/ejam/article/view/ejam.202534114. Acesso em: 13 may. 2026.