Work

Individual-based modelling to fine-tune management measures for commercial demersal sharks

Year: 2025

Type: article

Abstract: Individual-Based Models (IBMs) can be used to study population dynamics by emphasising individual variability in life-history traits and behaviour. Here, we built a zero-dimensional IBM to describe the population dynamics of smooth-hound sharks ( Mustelus spp. ) living in the northern Adriatic Sea, a highly exploited basin of the Mediterranean Sea. We integrated the density-dependence of individual-level processes based on bioenergetic theory with the explicit consideration of the intra-specific variability of life cycle processes into the model. The individual-based approach allowed us to investigate population status, highlight and fill knowledge gaps in the biology of the species, and test the potential effectiveness of innovative conservation measures. Although IBMs are a complex and potentially data-intensive methodology, this work demonstrates their usefulness as screening tools to systematically identify and select, within a pool of options, promising fisheries management measures for elasmobranch conservation and sustainable exploitation. • An individual-based model to describe the population dynamics of demersal sharks. • The model combines bioenergetics, life-history traits and post-release survival. • The approach fills knowledge gaps in the biology and ecology of the species. • The model allowed to test and fine-tune a potential management measure.

Source: Ecological Informatics

DOI: 10.1016/j.ecoinf.2025.103147

Authors: Carlo Zampieri, Carlotta Mazzoldi, Saša Raicevich, Alberto Barausse

Institutions: University of Padua, Istituto Superiore per la Protezione e la Ricerca Ambientale

Language: English

Topic: Ichthyology and Marine Biology

Subfield: Nature and Landscape Conservation

Field: Environmental Science

Domain: Physical Sciences

SDG: Life below water

Open Access status: gold

Estimated APC paid: $2,770