# Warming could leave UK seas with more predators and fewer prey

- URL: https://talkfuse.com/story/warming-uk-seas-could-fundamentally-reshape-marine-ecosystems-report/
- Published: 2026-11-05T07:00:56+00:00
- Updated: 2026-11-05T07:32:38+00:00
- Original publisher: The Guardian (publisher lean: Left)
- Original article: https://www.theguardian.com/environment/2026/nov/05/warming-uk-seas-could-fundamentally-reshape-marine-ecosystems-report
- Topics: Climate, Culture, Food, Research, Science, UK, World

## Key points

- UK seas may see uneven changes in marine biodiversity.
- Fish and seabed species could increase by about 12%.
- Key plankton groups are projected to decline by 2050.

## Summary

A four-year study warns that warming seas around the UK and the north-east Atlantic could disrupt marine food webs and threaten ocean health and food security by 2050. Its findings challenge the assumption that climate change will broadly increase marine biodiversity in middle-latitude regions: some groups may gain species while crucial groups lower in the food chain lose them.

Under a scenario of 3C of warming by 2100, the researchers project that fish and seabed invertebrate diversity could rise by about 12% by mid-century, while phytoplankton diversity could fall by about 3% and zooplankton by 7%. The study, led by Cefas and published in Science Advances, says these uneven changes could leave more predators and fewer prey, weakening ecosystem resilience. The findings have been submitted to a government review of marine protected areas and fisheries management.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.