Charlotte Sève

Abstract: 1 Most fish stocks worldwide are fished at maximum sustainable yield (MSY) or overfished, as many fisheries management strategies have failed to achieve sustainable fishing. Identifying effective fisheries management strategies has now become urgent. 2 Here, we developed a spatially-explicit metapopulation model accounting for population connectivity in the north-western Mediterranean Sea, and parameterized it for three ecologically and economically important coastal fish species: the white seabream Diplodus sargus , the two-banded seabream Diplodus vulgaris and the dusky grouper Epinephelus marginatus . 3 We used the model to assess how stock biomass and catches respond to changes in fishing mortality rate ( F ) and in the size of fully protected areas within the existing system of multiple-use marine protected areas (MPAs). For each species, we estimated MSY and the corresponding values of stock biomass ( B MSY ) and fishing mortality rate ( F MSY ), providing crucial reference points for the assessment of fisheries management.

TL;DR: Nine strains affiliated to 2 lineages of Ostreobium were isolated, one of which was assigned to the family Odoaceae, from the fast-growing coral host Pocillopora acuta Lamarck 1816, highlighting the functional plasticity of O Streobium phenotypes.