https://www.possantti.net/tags/ecosystem-services/Recent content in Ecosystem Services on Iporã Brito PossanttiHugo -- gohugo.ioen-gbMon, 20 Apr 2026 00:00:00 +0000https://www.possantti.net/projects/pem/project/Mon, 20 Apr 2026 00:00:00 +0000https://www.possantti.net/projects/pem/project/<header class="project-header"> <strong class="project-motivation"> How to allocate the ocean space among competing users? </strong> <p class="project-abstract"> PEM Sul is the national pilot for Marine Spatial Planning in Brazil, covering the southern marine region across Paraná, Santa Catarina, and Rio Grande do Sul. The work develops spatially explicit indicators — including a composite Use Performance Index — to support sustainable, multi-sector ocean management. </p> </header> <figure style="width: 100; margin-left: auto; margin-right: auto;"> <img src="https://photos.possantti.net/A001/ian-stewart.jpg" alt="" style="width: 100%; height: auto;"> <figcaption class="post-caption"> <span class="caption">The challenge of PEM is to allocate the ocean space in a fair and sustainable manner</span> <span class="separator"> — </span> <span class="credit">(c) Ian Stewart</span> </figcaption> </figure> <hr> <h2 id="context">Context</h2> <p><strong>Marine Spatial Planning (MSP)</strong> is a public, participatory process for distributing human activities across marine space — targeting ecological, economic, and social objectives simultaneously. In Brazil, the ocean accounts for roughly <strong>19% of GDP</strong> across some <strong>5.7 million km²</strong> of national jurisdiction. Managing that space without accumulating conflicts requires more than sectoral regulation; it requires a spatial framework.</p>