Protection reveals density-dependent dynamics in fish populations: A case study in the central Mediterranean.

ABSTRACT: Casting light on how the interaction between protection and density dependence affects fish population dynamics is critical for understanding the effectiveness of marine protected areas (MPAs). We developed a framework based on nonparametric statistics, model selection and multi-model inference to contrast alternative hypotheses about the effect of density dependence on demographic dynamics under protected and unprotected conditions. We trialed it using a 12-year long time series of white seabream (Diplodus sargus sargus) population density within the no-take zone of Torre Guaceto MPA (Italy) and at two nearby unprotected locations. Then, we showed how the demographic models obtained can be used to assess the consequences of protection on population viability. Population dynamics were sign

SUBMITTER: Melia P 

PROVIDER: S-EPMC6996820 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature