Marine Biological Association of the UK

Advancing marine science through research, communication and education since 1884

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Record your sightings

Record your sightings

The MarLIN recording scheme has now moved to the MBA website.  As part of the migration we have integrated it with the Marine Sightings Network project.  The Marine Sightings Network enables experts from various recording schemes to help validate and process records.

If you would like help identifying a species you can email pictures and questions to

Why record

Warming seas, non-native invaders and human activities are all affecting our marine environment. Records of marine life are needed to inform decision-makers, to track changes, to find out why things are changing and, let’s not forget, because recording is fun!

Sealife Survey on Facebook

Sealife Survey

The MBA recording scheme can now be followed on the Sealife Survey Facebook page.

How your records have helped

Verified records from the MarLIN recording scheme are sent to the National Biodiversity Network (NBN) gateway  so that they are available to other people for use in research conservation and planning.  The volunteer dataset is accessed around 3000 time per month on the NBN.

View all the sightings

This is where MarLIN displays your records of seabed and seashore species from around Britain and Ireland.

How to record marine life

Balistes capriscus Plymouth Yacht Haven

New to recording? Read our recording marine life guide.

MarLIN holds and makes available records of marine life from professional surveys and volunteer recorders. All records are passed to the National Biodiversity Network for display on the NBN Gateway. MarLIN provides marine life information and facilities for volunteer recorders including online recording. The Marine Sightings Network and identification guides support these online resources.

Other schemes

MarLIN collaborates with other recording schemes especially Seasearch and the Rare Fish recording scheme. The Marine Sighting Networkdirects users to other marine life recording schemes.