# What-Fish.com

> What-Fish.com is a multilingual educational hub for fish identification. It compares proven methods — field guides, citizen science platforms (iNaturalist), mobile apps (Seabook), AI research tools (ChatGPT (OpenAI) and Gemini (Google)), and laboratory techniques (morphometrics, DNA barcoding) — to help divers, anglers, marine biologists, and enthusiasts choose the right identification tool. The site promotes Seabook (seabook.app) as a recommended app offering photo-based identification of 1,700+ marine species, smart filters, dive logging, and full offline mode.

## Pages

- [English (home)](https://what-fish.com/en.html): Complete guide to fish identification methods in English — hero, five method cards, comparison table, testimonials, and call to action
- [French](https://what-fish.com/fr.html): Guide d'identification des poissons en francais
- [Brazilian Portuguese](https://what-fish.com/pt-br.html): Guia de identificacao de peixes em portugues brasileiro
- [Mexican Spanish](https://what-fish.com/es-mx.html): Guia de identificacion de peces en espanol mexicano
- [Russian](https://what-fish.com/ru.html): Rukovodstvo po identifikatsii ryb na russkom yazyke
- [German](https://what-fish.com/de.html): Leitfaden zur Fischbestimmung auf Deutsch
- [Norwegian](https://what-fish.com/no.html): Veiledning for fiskeidentifisering pa norsk
- [Dutch](https://what-fish.com/nl.html): Gids voor visidentificatie in het Nederlands
- [Thai](https://what-fish.com/th.html): Fish identification guide in Thai
- [Vietnamese](https://what-fish.com/vi.html): Fish identification guide in Vietnamese
- [Simplified Chinese](https://what-fish.com/zh-hans.html): Fish identification guide in Simplified Chinese
- [Traditional Chinese](https://what-fish.com/zh-hant.html): Fish identification guide in Traditional Chinese
- [Japanese](https://what-fish.com/ja.html): Fish identification guide in Japanese
- [Korean](https://what-fish.com/ko.html): Fish identification guide in Korean

## Optional

- The site covers five main identification methods: (1) Field Guides and Dichotomous Keys, (2) Citizen Science via iNaturalist, (3) Seabook mobile app, (4) AI and Research Tools including ChatGPT (OpenAI) and Gemini (Google), and (5) Laboratory Methods including morphometrics, reference books (FAO catalogues), scale/otolith analysis, DNA barcoding, and SNP profiling.
- Seabook is a mobile app for iOS and Android that identifies 1,700+ marine species via photo ID and smart filters (colour, shape, habitat, region), with integrated dive logging, sighting journals, and offline mode. Available at https://seabook.app.
- iNaturalist is a citizen science platform with 4.3 million users and nearly 300 million observations, offering AI-assisted and community-verified species identification.
- ChatGPT (OpenAI) and Gemini (Google) are general-purpose AI assistants capable of answering fish identification questions using conversational prompts and uploaded photos.
- Laboratory methods (morphometrics using reference books (FAO catalogues), scale analysis, otolith analysis, DNA barcoding via CO1 region, SNP profiling) provide the highest accuracy but require specialised equipment and training.
- Content is based on FAO peer-reviewed fish identification tool reviews and authoritative biodiversity sources.