Thick-lipped grey mullet, Golden grey mullet, Flathead grey mullet
Grey mullet are robust, torpedo-shaped fish with silvery-grey bodies, darker backs, and broad tails. The thick-lipped species has a blunt snout and distinctive fleshy lips. They typically grow to 30–60cm. Their flesh is firm and lean, with a subtle flavour that absorbs marinades and seasonings well.
Grey mullet are coastal fish commonly found in estuaries, harbours, and shallow inshore waters, especially during warmer months. In Cornwall, they are regularly seen feeding in tidal creeks and rivers. They often form loose shoals and are known for their cautious behaviour, making them challenging to catch.
Sustainability Rating
Status: Grey mullet are slow-growing and late to mature, making them vulnerable to overfishing. Stock levels are not well understood due to limited data.
Best Choice: Fish caught by rod and line or small-scale netting in Cornish waters. These methods are low impact and highly selective.
Avoid: Mullet caught in mixed fisheries or by non-selective gear where stock levels and catch monitoring are poor.
Culinary Uses
Grey mullet has a mild, slightly earthy flavour and firm white flesh.
Well-suited to grilling, baking, or pan-frying with bold seasonings.
Popular in Mediterranean, Asian, and Middle Eastern cuisine.
Can be used whole or filleted, often served with citrus, herbs, or spices.
Best Fishing Practices
In Cornwall, rod and line or set netting are the most sustainable methods.
These techniques reduce bycatch and limit habitat disruption.
Improved stock monitoring is encouraged to protect future availability.
Seasonality
Available mainly from late spring through to early autumn, when mullet move into warmer, inshore waters.
Supporting Local, Sustainable Seafood
Opting for grey mullet caught in Cornish estuaries using traditional, low-impact methods helps support small-scale fisheries. With careful sourcing, this often-overlooked species offers excellent flavour and sustainability for environmentally conscious menus.
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