Harmful Algal Blooms in the Gulf: What to Do

Some mornings you reach the water and it looks wrong: dark red or cloudy green, a strange smell, and fish floating dead on the surface. That is not a normal view. Most of the time you are looking at a harmful algal bloom, and the right reaction protects you and everyone on board.

What an Algal Bloom Actually Is

Tiny algae live naturally in Gulf water, but when conditions line up they multiply fast and stain the sea. The event is often called a red tide, yet it is not always red; it can be brown, green or orange, and sometimes the water stays almost clear while the algae are still there.

In the Gulf these blooms appear mainly in the warm months, especially with hot weather, calm water and light wind plus extra nutrients in the sea. Calm water lets the algae gather in one place instead of spreading out, so shallow and semi-enclosed areas show the signs first.

How to Recognise a Bloom

• Water colour is clearly off: dark red, brown, or milky green.
• A strong unusual smell near the surface, close to rot or sulphur.
• Dead fish or sluggish fish hanging near the surface and moving poorly.
• Foam or a thick film on the water, sometimes with a strange sheen in the sun.
• Shallow, still water at low tide, where material piles up more than elsewhere.

Why You Should Not Fish or Swim There

When the algae die and break down they pull oxygen out of the water, and fish can die in large numbers. Some species also release substances that irritate skin and eyes, and can cause breathing trouble for some people who swim in affected water.

The bigger risk is shellfish such as mussels and clams, because toxins build up in their bodies and cooking does not remove them. Do not collect shellfish from a blooming area, and do not eat any fish you find dead or barely moving. The line between safe and harmful is thin here, and it matters.

What to Do Next

The best decision is to move to another area away from the bloom instead of waiting for it to clear. A bloom does not vanish quickly and can drift with wind and current within hours, so you never know where it will be next.

• Do not net or line-fish inside the affected zone, and tell others nearby what you saw.
• If you touched the water, wash your hands and rinse the boat deck and fishing gear with clean water.
• Flush the engine cooling system with fresh water and let it dry before you pull the boat back to the marina.
• Brief children and guests, and keep animals away from the water in that spot.
• Report the colour, location and date to the authorities or the environmental hotline; reports help follow-up.

Before you launch, the B7R app helps you check sea state and the tide times for Shuwaikh and Shuaiba ports, so you can change your plan ashore instead of discovering the problem at sea. If you decide to move to a different area, the B7R app also gives you navigation tools and the fish guide to pick your next spot wisely. Your comfort and safety beat any catch.

Download the B7R app free on Google Play here: https://play.google.com/store/apps/details?id=com.q8dm.b7r