Endangered Species Research Endangered Species Research, Oldendorf/Luhe : Inter-Research, 2020, 42, pp.133-149. ⟨10.3354/esr01044⟩ Endangered Species Research, Vol 42, Iss 1, Pp 133-149 (2020) Endangered Species Research, 2020, 42, pp.133-149. ⟨10.3354/esr01044⟩