1 · Spot
Spot the species
Each clip is a short underwater snippet. Pick the species from a small set of likely candidates: local marine life curated by PEBL ecologists.
Spot the species in real underwater footage.
Every species you ID helps us better understand our coastlines.
139underwater clips72species to spot645identifications
Free, no card required. Create a profile, browse the archive or view the leaderboard.
How it works
Three clips a day keeps the streak alive
2 · Compare
Compare with the reference ID
See the reference identification where one exists, how the wider community guessed, and an ecological-likelihood breakdown for the site and season. Clips without a reference are worth more.
3 · Streak
Build a streak
Identify clips on consecutive days to grow a streak. Get on the leaderboard once you've submitted 10 identifications.
The catalogue
What you'll find down there
Plaice© Liné1 · CC BY 2.5 
Ballan wrasse© galargus · some rights reserved (CC BY-NC) 
Atlantic mackerel© James-LaFontaine · CC BY via iNaturalist 
Sprat© Ulf Teghammar · some rights reserved (CC BY-NC) 
Thick-lipped mullet© Roberto Pillon · CC BY 4.0 
Dragonet© Xavier Rufray · some rights reserved (CC BY-NC) 
Shanny© Julien Renoult · CC BY 4.0 
Cuckoo wrasse© Alex · CC BY-NC via iNaturalist 
European Squid© giancarlo_torre · CC BY-NC via iNaturalist 
Atlantic cod© Hunter Stevens · some rights reserved (CC BY-NC) 
Dab© Alex Shure · some rights reserved (CC BY-NC) 
Dog Whelk© ananda_intham · some rights reserved (CC BY-NC) 
Atlantic horse mackerel© whodden · some rights reserved (CC BY-NC) 
Grey gurnard© Xavier Rufray · some rights reserved (CC BY-NC)
Reference photos via iNaturalist & Wikimedia contributors, under Creative Commons licences.
Where the clips come from
Filmed beneath real seaweed farms
Every clip is filmed under a working UK seaweed farm. Most of what these farms grow becomes a biostimulant: a natural alternative to synthetic fertiliser that helps crops resist stress and grow stronger, sprayed onto real fields by real farmers. PEBL monitors six of them for a National Lottery Climate Action Fund project with WWF.
Meet all six farms →
About PEBL
Plant Ecology Beyond Land (PEBL) CIC
PEBL is a Community Interest Company (no. 12076622, England and Wales) building accessible ecological data tools for coastal and seabed environments. FishSpotter is part of our marine monitoring programme: a citizen-science layer over real survey footage from PEBL deployments.
Visit pebl-cic.co.uk →