Karatsu Data Bank | Sourced data on the sea and nature of Karatsu, Japan

Sourced data on the sea and nature of Karatsu, Saga and Kyushu

Karatsu Data Bank is the gateway to the data pages compiled by Karatsu Farm & Food, a nonprofit in Karatsu, Saga Prefecture, Japan. It brings together public statistics, international assessment reports and our own field records on the sea, nature and resource circulation of Karatsu, Saga and Kyushu, each with its source.

Every figure can be traced to its source in the ledger on each page. Tables are published as text, not images, so search engines and AI can read the numbers. Every month we check whether the sources have published new figures.

Data pages

The sea and town of Karatsu seen from a hilltop

Genkai Landings and Sea Temperature

Monthly fish landings at the Genkai co-op market in Karatsu and survey sea temperatures, from the Saga Prefecture fisheries bulletin. Updated monthly.

Last updated 2026-10-08

Marine litter washed up on a rocky shore

Marine Litter and Beach Cleanups in Karatsu (Japanese)

Confirmed figures from our own records of beach cleanups and bottle-cap collection (in Japanese).

Last updated 2026-10-08

IPBES Nexus Assessment: Renewable Energy and Nature

Offshore wind, solar and dam operation in Figure SPM.8 of the IPBES Nexus Assessment, with Japan's framework and the status of the sea off Karatsu.

Last updated 2026-10-12

How we write these pages

We record only what public documents, academic sources and our own records state, and add no evaluation of our own. Figures we cannot confirm in primary sources are left out. When governments or institutions publish new figures or classifications, we update the page and its last-updated date.

We plan to add pages on plastics statistics, progress toward CBD COP17 and the Kunming-Montreal Global Biodiversity Framework, tourism and nature credits (as of October 2026).

FAQ

Q1. Where do the data come from?

Public documents from national and local governments and international bodies, academic papers, and our own field records. Each page has a source ledger with the title, publisher, URL and access date.

Q2. How often are the pages updated?

Every month we check whether the sources have published new figures, and update the pages when they have.

Q3. What if I find an error?

Please tell us via kojima@karatsu-f-f.com or our contact page. We will check the source and correct it.

About this page

Compiled by Hiroaki Kojima, Vice Director, Karatsu Farm & Food. Contact: kojima@karatsu-f-f.com (contact page)