FishSizeProject 4+

Record your fish catches and observations, create your personal fishing or diving log and become a citizen scientist, helping freshwater and marine conservation and fisheries management.

This app is developed for anglers, divers and everyone interested in catching or observing fish. With a few clicks, log the photo of your catch or observation, get automatic location data and share photos with the community if you choose to. Your records will help scientists assess the status of fish populations enabling better fisheries management. Your records will also help train machine-learning algorithms for cutting-edge automated fish species and size identification.

FishSizeProject is the perfect way to:
- keep a photo log of your past and ongoing catches or diving observations.
- record a diary and accumulate statistics about your fishing trips, catches, locations and associated weather conditions.
- keep up with fishing regulations in Lithuania.
- share catches and observations you choose to with the community.
- ensure your fishing spots remain private and secret while providing valuable data.

FishSizeProject helps science and fish conservation because:
- by recording the quantity and size of the fish you catch or see, you provide important data to science.
- by recording unusual observations, you help to detect when new species or diseases occur in your area.
- you can log historical photos of fish catches and sizes, providing important data on fish sizes and abundances many decades ago.
- very little data exists for most coastal and freshwater fish stocks, making their assessment difficult, yet anglers or divers visit them almost daily.
- involvement by citizen scientists has revolutionised bird and butterfly studies and you can help achieve that in fisheries also.

FishSizeProject is free and non-commercial having been developed by scientists at the Nature Research Centre in Lithuania. By using this app, you will be contributing to important research that improves fisheries management. All data used in scientific analyses are anonymous and by default your private fishing locations will not be made public. But if you do choose to share your catch or observation publicly, the photo, time and your username will be displayed on the public page of the app. The first release of the app is focused on Lithuania, but records can be logged anywhere in the world. As the app grows, it will be adapted to researcher and citizen scientist needs around the world.