Environment and Climate

Scottish aquaculture operates within diverse and rapidly changing marine and freshwater environments, and the sector is increasingly shaped by environmental and climate‑driven pressures. Across the sector climate change – evident in warming seas, more frequent extreme weather, and shifting ecological patterns – is changing the timing, intensity, and distribution of biological risks. These changes affect all farmed species and place greater emphasis on robust environmental monitoring, early‑warning systems and resilient infrastructure.

In finfish, climate‑linked changes in marine ecosystems are driving more frequent and intense biological challenges. Warmer waters can bring parasites, micro‑jellyfish or harmful algal blooms, creating pressures on fish health, particularly gill function. These events are becoming harder to predict. Storms and extreme weather also threaten structures such as moorings and pens.

Shellfish are highly sensitive to water quality and are affected by algal blooms. These can disrupt supply and strain the commercial resilience of farms that depend on consistent market access. Shellfish also rely heavily on stable coastal conditions, making them vulnerable to pollution incidents and temperature fluctuations.

Seaweed farming faces related challenges. Rising sea temperatures, biofouling, algae, and competition for light and nutrients can all affect growth rates and crop quality.

To remain sustainable and competitive, Scottish aquaculture must strengthen its climate resilience. This includes improved environmental monitoring and forecasting, early‑warning systems for biological events, robust farm infrastructure, and adopt practices and procedures in order to respond quickly to changes in the environment. Addressing these interconnected issues is essential for protecting stock health, supporting rural economies, and ensuring the long‑term viability and sustainability of Scotland’s aquaculture sector.

How SAIC can help

SAIC is well placed to support pressures the sector faces around the environment and climate by bringing together the right expertise, funding and practical tools to drive innovation.

By connecting farmers with specialists in marine science, climate modelling and animal health, we can better understand emerging risks and the environmental conditions that drive them. Our focus on collaboration has led to the creation of new monitoring systems, resilience strategies and early‑warning tools tailored to Scotland’s diverse production environments.

We also accelerate progress by sharing insights across the sector and attracting a range of UK and EU funding for projects. The large‑scale R&D projects we have supported have generated outputs organisations could not deliver alone. Our work is helping the finfish, shellfish and seaweed sectors develop practical, climate‑resilient solutions they need to support sustainable long‑term growth.

Read about the projects we have supported that focus on climate resilience and environmental impact