海の幸ルールブック

About this app

Check fishing & harvesting rules before you go. No poaching. The essential app for anyone enjoying sea fishing, rock pooling, or shellfish gathering in Japan. Instantly check rules, size limits, and restricted species for 42 types of fish, shellfish, and seaweed. "Is this fish big enough to keep?" "Can I pick up these shells?" "What's the tide like today?" All your questions answered in one app. Harvesting Rules & Species Guide ・Rules for 42 species of fish, shellfish & seaweed ・Clear OK / Caution / Prohibited status at a glance ・Protected species clearly marked (abalone, sea cucumber, sea urchin, etc.) ・Guide to poaching laws & penalties in Japan Real-Time Fishing Info ・GPS-based sunrise & sunset times for your location ・Live weather, wave height, wind speed & tide (lunar calc) ・Monthly "in-season" fish updated daily 8 Beginner-Friendly Guide ・What is poaching? Penalties & restricted species ・Dangerous marine life encyclopedia ・How to measure fish size correctly ・Rules & safety tips for shellfish gathering ・Pacific Bluefin Tuna regulations ・How to handle your catch　and more More Features ・Bookmark your favorite species ・Available in Japanese, English & 中文 (Simplified Chinese) ・Species guide works offline From first-timers to experienced anglers, families to solo fishers. The must-have app to fish safely and legally in Japan.

Improved the speed and stability of fishing information display. Favorites and search lists now load more smoothly, and language switching has been improved. Also includes various bug fixes and usability improvements.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 31, 2026 · 11:48 AM Free