Fig 1.
PRISMA 2020 flow diagram of study selection.
Fig 2.
Porto-Novo Lagoon (Benin) and the West African comparison lagoons (Ébrié, Lagos/Lekki, Sakumo II): location map based on Sentinel-2 Level-2A imagery (20 December 2024; Copernicus Open Access Hub, Copernicus Programme; open data policy) processed in QGIS.
Fig 3.
Framework for describing seasonal ecological relationships in the Porto-Novo lagoon.
Table 1.
Legal and institutional frameworks relating to some lagoons in West Africa.
Table 2.
Overview of density and nature of monitoring networks of some lagoons in West Africa.
Table 3.
Overview of recent pressure indicators and characteristic physicochemical variables in some lagoons in West Africa.
Table 4.
Degree of completeness of Porto-Novo Lagoon datasets against SDG 6.3.2 Level 1 core parameter groups (readiness assessment; period 2006–2022).
Table 5.
Degree of completeness of available evidence for WFD quality elements in the Porto-Novo Lagoon, and implications for WFD assessment readinessreadiness.
Fig 4.
Degree of completeness (%) of the Porto-Novo lagoon datasets in relation to SDG 6.3.2 and WFD requirements..