@article{fdi:010092783, title = {{L}arval dispersal dynamics of {M}aja squinado in the {N}orthwestern {M}editerranean : a biophysical modeling approach}, author = {{B}arrier, {C}. and {B}eneteau, {T}. and {R}affalli, {M}. {C}. and {B}arrier, {N}icolas and {L}ett, {C}hristophe and {P}asqualini, {V}. and {D}urieux, {E}. {D}. {H}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {M}editerranean spinous spider crab, {M}aja squinado ({H}erbst, 1788), is a prized crustacean exploited by {M}editerranean coastal fisheries, contributing to local economies and culinary traditions. {W}hile stock declines have been reported in some regions, other areas continue to sustain fishing activities, albeit under pressure. {U}nderstanding the species' demography is therefore essential for effective future management. {T}o investigate the larval dispersal dynamics of {M}. squinado in the {M}editerranean, a biophysical model was developed, incorporating biological and ecological data such as larval duration and spawning habitats. {T}he tool {I}chthyop, designed to study ichthyoplankton dynamics, was employed to perform simulations spanning the period from 2010 to 2020. {T}hese simulations were analyzed in the context of global surface water warming trends, yielding maps that illustrated trajectory density, system connectivity, and variations in larval density and dispersal distance over time. {T}he comparative analysis of various scenarios revealed the significant impact of environmental variations on larval connectivity. {S}pecifically, the {T}unisia-{S}ardinia-{C}orsica complex exhibited strong connectivity, while the {B}alearic {I}slands appeared isolated due to the species' short pelagic larval duration ({PLD}). {T}he findings highlight the utility of biophysical models in hypothesizing population declines in isolated areas and underscore the necessity of employing diverse modeling approaches at multiple spatial and temporal resolutions. {K}ernel density estimation ({KDE}) maps were selected to analyze and visualize the observed simulation scenarios. {T}he results emphasize the importance of considering these changes, particularly the synergies between environmental and biological parameters that influence larval dispersal and connectivity in this species. {S}uch approaches could enhance future conservation and management strategies by accounting for the complex interactions driving population dynamics within the context of a changing {M}editerranean ecosystem.}, keywords = {{M}aja squinado ; {L}arval dispersal ; {M}editerranean sea ; {B}iophysical models ; {R}egional connectivity ; {MEDITERRANEE}}, booktitle = {}, journal = {{E}stuarine {C}oastal and {S}helf {S}cience}, volume = {316}, numero = {}, pages = {109183 [18 p.]}, ISSN = {0272-7714}, year = {2025}, DOI = {10.1016/j.ecss.2025.109183}, URL = {https://www.documentation.ird.fr/hor/fdi:010092783}, }