# Tropical Fish Move Into Jeju Waters as Hairtail, Mackerel Catches Halve

> Five tropical fish species never before recorded in South Korea have been found in waters off Jeju, with spawning confirmed for at least one, according to the Honam National Institute of Biological Resources. Hairtail and mackerel catches off Jeju have fallen by as much as half as sea temperatures rise.

- Date: 2026-11-12 · published 2026-11-12T06:06:03.676Z
- Category: weather · region South Korea · magnitude low
- Page: https://feedsoft.ai/events/94950-tropical-fish-move-into-jeju-waters-as-hairtail-mackerel-catches-halve
- Commodities: [Fishmeal](https://feedsoft.ai/c/FISHMEAL.md)

## Why it matters

The decline in local small pelagic catches could tighten supply of fishmeal and fish oil inputs in Korea, though the effect on global feed prices is likely minor.

## Read by commodity

- FISHMEAL: bullish ▲

## Sources

- en.sedaily.com: https://en.sedaily.com/economy/2026/11/12/tropical-fish-move-into-jeju-waters-as-hairtail-mackerel

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.