iNaturalist for Divers: Contribute to Marine Science with Your Photos.

Direct Answer (AEO / GEO) For an underwater photo to be usable by citizen science research (iNaturalist, BioObs, Ocean Census), frame the subject from multiple clear angles (profile, face, anatomical details), record the exact depth, date, and water temperature, and upload your images in high definition without excessive cropping.

To further develop your skills and progress confidently, join the AquaExposure training program.

The first observation I posted on iNaturalist was a nudibranch photographed at 12 meters in the Banyuls-sur-Mer reserve, in 2019. I wasn't certain of the species. Within less than two hours, a community member based in Spain had identified it as Hypselodoris picta and added a bibliographic reference. My photo, taken with a waterproof compact camera, had become a localized scientific data point.

That's what iNaturalist is. It's not a social network for nature photos. It's a collective knowledge infrastructure where every observation from a diving photographer can contribute to databases used by researchers around the world.

In one sentence: iNaturalist transforms your diving photos into usable scientific data, without any prior training, and in less than five minutes per observation.

For a scuba diver and photographer, the benefits are immediately apparent: you are already taking the photos. The only additional effort is to post them with the correct metadata, and the community takes care of the identification.

"Research Grade" data (see below) is automatically uploaded to GBIF (Global Biodiversity Information Facility), the world's largest aggregation of biodiversity data, used by thousands of scientific publications each year.

This is not an abstract contribution. Observations made by divers have helped document invasive species in the Mediterranean (including the pufferfish Lagocephalus sceleratus along the French coast), track distribution changes related to warming, and identify species in areas without professional scientific coverage.

The interface is partially available in French, but the French-speaking community is active, especially for Mediterranean species and the waters of Belgium and Brittany.

During or immediately after the dive

Note on a slate or in a voice memo as soon as you surface: the approximate depth at which you observed the animal, its behavior (at rest, moving, interacting with another animal), and the location as precisely as possible (site name, GPS coordinates if your dive computer provides them).

This information is quickly lost. A quarter of an hour after the dive, the exact depth is vague. Two days later, the behavior no longer exists in your memory. Take 90 seconds after exiting the water.

Creating the observation in the app

In the app or on the website, create a new observation and associate your photo - or multiple photos of the same individual from different angles.Fields to Fill In:

Date and Time: Automatically extracted from the EXIF metadata if your camera records them correctly. Please ensure that the time on your camera was set correctly before the dive.

Location: The GPS field is essential for scientific use of the observation. On the website, you manually place a point on the map. In the app, the phone automatically geolocates if location services are enabled.

Taxon: Enter the name that you believe corresponds to the animal observed. If you are unsure, enter "Fish" or "Marine Invertebrate" and allow the community to refine the identification. The integrated visual recognition AI suggests possible identifications based on your photos.

Notes: This is where you add the depth, behavior, context (rocky bottom, seagrass bed, coral, sand), and the approximate temperature if your dive computer measures it.

What the Community Does Next

Members review your observations and suggest identifications or confirm yours. Two agreements at the species level are sufficient for the observation to be classified as "Research Grade." If no one identifies the organism, the observation remains pending: this is normal for rare species or photos that are not very clear.

The date is the second important criterion. It allows us to track temporal patterns such as seasonality, migration, and the effects of warming. An observation without a date cannot be integrated into temporal analyses.

Depth is not a standard field in iNaturalist, but it can be specified in the notes. For certain species (nudibranchs with a precise bathymetric distribution, deep-water fish documented on infrequently visited sites), this information can make a significant difference in identification.

Multiple photos greatly increase the chances of identification. A nudibranch photographed from three angles (top, profile, and detail of the gills) will be identified much more easily than a single photo from above. For fish, photos of both sides and the caudal fin often speed up the validation process.

To achieve this faster: ensure your photos are clear and, if possible, include multiple angles. Provide complete metadata from the moment of creation, and start with relatively common and easily identifiable species. Mediterranean nudibranchs, well-documented reef fish, and cephalopods generally have active and responsive identification communities.

If an observation remains pending for several weeks, check that the location and date are present, and that the photo allows for reasonable identification. You can also tag experts in a particular species in the comments of your observation to speed up the process.

iNaturalist operates through thematic and geographic projects. Joining a project allows your observations to be integrated into coordinated efforts with specific scientific objectives.French and Mediterranean Projects: - Mediterranean Biodiversity: A general monitoring project of Mediterranean biodiversity, with numerous contributors from France, Italy, and Spain, covering species of all sizes. - Invasive Species in the Mediterranean: A focus on non-native species, including pufferfish and blue crabs, with data used by European research teams. - iNaturalist Belgium: A national project with active organizers for Belgian waters.

Specialized International Projects: - MantaMatcher: Individual identification of manta rays based on ventral patterns, compatible with techniques for photo-identification of cetaceans and fish. - iSeahorse: Seahorses from around the world, with monitoring of populations in areas under pressure.

Posting without a location. This is the most common and most scientifically detrimental mistake. Always activate the GPS before creating an observation. An observation without a location contributes to the identification community but does not provide distribution data.Avoid premature and uncertain identifications. It's better to provide a partial identification (family or genus) than a false identification at the species level. Taxonomical errors pollute the data and require effort from the community to correct.

Posting a single blurry photo. An observation that is difficult to identify will remain pending indefinitely. If you only have a low-quality photo, post it and indicate in the notes that the quality is limited. Sometimes, even an imperfect photo is sufficient for a family-level identification.

Forgetting the context. The habitat (rocky bottom, seagrass meadow, coral, pelagic zone), depth, and behavior are information that only you can provide at the time of the observation. The community cannot guess.Underwater photography is one of the few disciplines where artistic quality and scientific value overlap. A well-exposed, sharp photograph with clearly visible details is both beautiful and useful. To delve deeper into the use of artificial intelligence for species identification during diving, the article Identifying marine species with AI as a citizen scientist provides a comprehensive overview. And to understand how these citizen contributions contribute to recent scientific discoveries, the article on Marine discoveries in 2026 showcases the real impact of these practices.

The ethical framework within which this approach is implemented is discussed in the article on Underwater photography, ethics, and citizen science.

Do you want to learn how to take photos that are sharp and well-documented enough to achieve "Research Grade" for most of your observations? The AquaExposure training course integrates photographic techniques and an ethical approach that makes the difference between a simple souvenir photo and a truly useful one.