Marine and coastal biodiversity monitoring and reporting
Monitoring infrastructure for coral reefs, mangrove forests, and seagrass meadows, supporting coastal biodiversity.
Explore global marine habitats
Coral reefs, mangroves, and seagrass meadows. One map, ten public data sources, zero setup.
Who MariMap is for
Three gaps. One platform.
Restoration teams
Field data is fragmented across spreadsheets, phones, and paper. Restoration teams lose time on reconciliation instead of regrowth. MariMap unifies protocol data from any source into one evidence trail.
Corporate disclosure
TNFD, CSRD, and ESRS E4 all require primary biodiversity evidence. Most companies cannot produce it. MariMap ties on-the-ground observations to traceable evidence that disclosure teams can build on.
Research and governance
OBIS, GBIF, WoRMS, and NOAA. Open global data exists, but field teams and governments cannot access it easily. MariMap joins local observations to global context in one workspace.
What we do
One evidence backbone for coastal monitoring.
Whether you run daily monitoring, manage a restoration site, prepare for certification, or organise a multi-institution research programme, MariMap gives your team one consistent system for the field, the data, and the report.
What MariMap does
Collection, restoration, reporting, research.
Four ways teams use MariMap. Every track runs on the same data, the same protocols, and the same governance layer, so nothing rots in silos.
DATA INFRASTRUCTURE
Every site receives environmental context from integrated sources
Satellite data, species records, and climate indicators are automatically integrated for every monitoring site on Earth.
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H3 hexagonal spatial grid
All observations and environmental data are unified into a multi-resolution H3 hexagonal grid. From 250 km² regional overviews down to 0.02 km² survey-level precision, MariMap delivers spatial insights at any scale. One consistent framework for analysis, comparison, and reporting.
MariMap and MariField work as one system
MariField handles field capture. MariMap handles governance, analysis, and reporting.
Field teams and rangers
Run repeatable site monitoring with clear protocols, QA prompts, and offline-friendly capture in MariField.
MRV consultants and implementers
Organize baselines, repeat surveys, and traceable evidence packages for partners and registries.
Prepare structured exports and review-ready annexes for TNFD, ESRS, and related reporting cycles.
Habitats we monitor and restore
MariMap standardizes indicators across reefs, seagrass, and mangroves so teams can compare sites, quantify blue carbon, and report biodiversity outcomes over time.
Why marine biodiversity needs better monitoring
Coastal ecosystems buffer storms, sustain fisheries, and store blue carbon. Without consistent monitoring and reporting, restoration and protection efforts lose credibility and funding.
Protection and coastal resilience
Reefs, mangroves, and seagrasses reduce wave energy and storm impacts, safeguarding people and infrastructure.
Food security and livelihoods
Healthy habitats underpin fisheries and nature-based tourism, supporting local economies and wellbeing.
Biodiversity and new knowledge
Monitoring reveals trends and accelerates learning, improving conservation outcomes over time.
MRV for marine biodiversity and disclosure, built in
Baseline and repeat surveys flow through QA/QC, satellite context, and audit-ready exports for funders, regulators, and verifiers.
Measure (MariField + EO)
Plan standardized surveys, capture offline data in MariField, and pair it with satellite and GIS layers to track habitat change.
Report (MariMap)
Generate MRV summaries, biodiversity sections, and environmental context for reporting cycles.
Verify (MariMap)
Versioned datasets, audit trails, and claims discipline support third-party verification and registry submissions.
Restoration workflows that scale
Track nurseries, outplanting, survival, and cost per outcome with spatial reporting and AI-assisted QA/QC. Aligned with Coral Restoration Consortium (CRC) protocols.
Plan & permits
Define goals, target species, and site selection.
Build nurseries
Document structures, layout, and capacity.
Protect diversity
Track donor colonies and genotypes.
Monitor growth
Log fragment health, size, and environment.
Outplant & evaluate
Track batches, survival, and outcomes.
COMMUNITY
Building the leading marine platform with partners
Join our growing community of marine organizations using MariMap across the globe.
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Contact
Let's plan your monitoring project.
Share your coral reef, seagrass, or mangrove goals and we will help align the right tools, data workflows, and partners.
We will get back to you within 24 hours.
Headquarters
Herengracht 551
1017 BW Amsterdam, The Netherlands
Working hours
9AM - 6PM CET, Monday to Friday
Coastal habitats such as seagrasses and mangroves help to regulate our atmosphere, sequestering and storing 'blue carbon'. These habitats also help protect coastal communities from extreme weather events. Through these actions, coastal habitats contribute to national commitments by supporting communities in mitigating and adapting to climate change.
Find out more on the UN SDG website: SDG 13: Climate Action
Marine and coastal habitats such as warm and cold-water corals, mangroves, saltmarshes, and seagrasses contain a disproportionately high amount of marine biodiversity. Despite occupying less than 1% of the ocean, coral reefs host around 25% of marine species, critical for a thriving, life-supporting ocean.
Find out more on the UN SDG website: SDG 14: Life Below Water
Mangroves, saltmarshes, seagrasses, and coastal reefs often sit where land meets sea and underpin both realms. Many species rely on both terrestrial and marine habitats, and people living on land depend heavily on healthy coastal and marine ecosystems.
Find out more on the UN SDG website: SDG 15: Life on Land
