@article{fdi:010088937,
  title = {{E}dible {S}ea urchin ({P}aracentrotus lividus) larval dispersal and connectivity modelling in the northwestern {M}editerranean {S}ea},
  author = {{B}arrier, {C}. and {T}ernengo, {S}. and {E}l {I}drissi, {O}. and {P}iacentini, {L}. 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 edible sea urchin ({P}aracentrotus lividus) is of significant economic importance due to high demand for its consumption in various {M}editerranean countries. {T}his echinoderm plays a crucial ecological role by regulating the dynamics of seaweed and seagrass through its grazing behaviour. {T}he abundance of sea urchin is variable in time and space, but it is currently potentially declining in the {M}editerranean {S}ea, and likely to be negatively affected by global change. {T}herefore, gaining a more comprehensive understanding of sea urchin larval dispersal patterns over an extended period could contribute to our understanding of how their dynamics relate to population connectivity. {T}o investigate the trajectories of larval dispersal of this sea urchin in the {N}orthwestern {M}editerranean {S}ea, we combined a {L}agrangian model ({I}chthyop) with a hydrodynamic model ({MARS}3{D}). {T}his study covered the years 2010-2018 and aimed to quantify the connectivity between the preferred habitats of the sea urchin (seagrasses and rocky substrates). {T}he present study explores seasonal variations in dispersal routes and habitat connectivity relationships for two spawning scenarios identified in the literature (spring and autumn). {T}he results enable us to identify dispersal routes, and their regularity over time. {T}hey highlight a consistent connection between {S}ardinia, {C}orsica, and the coastlines of the {L}igurian and {T}yrrhenian {S}eas, indicating a lack of genetic structuring within the edible sea urchin population in this area, particularly in {C}orsica. {T}he connectivity matrices confirm the observed dispersal trajectories and highlight certain areas of significant and enduring local retention over time. {T}he results also reveal minimal seasonal variability. {C}onversely, interannual variability appears pronounced, particularly in relation with trends in the warming of surface waters in the {M}editerranean, which seem to impact the dispersal routes taken by {P}. lividus larvae. {L}astly, a connectivity map was created to explore spatial resource management perspectives, aiming to identify frequent connections over an extended time period and assign varying levels of intensity to them. {T}his approach can provide guidance with regard to resource management issues for different coastal areas that can be connected by larvae.},
  keywords = {{L}arval dispersal ; {M}arine connectivity ; {L}agrangian model ; {I}chthyop ; {P}aracentrotus lividus ; {MEDITERRANNEE}},
  booktitle = {},
  journal = {{J}ournal of {S}ea {R}esearch},
  volume = {197},
  numero = {},
  pages = {102464 [13 p.]},
  ISSN = {1385-1101},
  year = {2024},
  DOI = {10.1016/j.seares.2023.102464},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088937},
}