Toxic Tide: How Gujarat’s ₹130-Crore Tourism Drive Turned Shivrajpur into a Microplastic Trap

It was marketed as the crown jewel of Gujarat’s coastline: a pristine, white-sand paradise that earned the coveted international "Blue Flag" eco-certification. But beneath the sparkling surf of Shivrajpur beach, a quiet ecological disaster is unfolding.

A new joint study by researchers from Maharaja Sayajirao University (MSU) and Hemchandracharya North Gujarat University (HNGU) has revealed that Shivrajpur has the highest concentration of microplastics among 13 major coastal sites surveyed in the state.

The findings, published in the peer-reviewed journal Marine Pollution Bulletin, deliver a sharp blow to the state government, which has spent the last decade and over ₹130 crore aggressively transforming this once-sleepy cove near Dwarka into a mass-tourism hotspot.

The Warning in the Rocks

The alarm was raised not by satellite imagery or water testing, but by barnacles—the tiny, shell-covered marine creatures that anchor themselves to coastal rocks and ship hulls.

Because barnacles are stationary filter-feeders, they spend their lives pumping seawater to capture food. In doing so, they act as living sponges, absorbing whatever pollutants saturate their environment.

"Plastic waste entering river systems eventually reaches the sea, where it gradually breaks down into microplastics," said Krupal Patel, an assistant professor in MSU’s Department of Zoology and one of the study's lead researchers. "The bigger concern is that they eventually make their way into seafood consumed by humans."

By analysing eight species of barnacles alongside seawater and sediment samples collected between March 2023 and August 2024, the research team extracted 1,700 microplastic particles. Of these, 484 were lodged inside the tissue of the barnacles themselves.

A Victim of Its Own Success

The crisis is a direct consequence of Shivrajpur’s rapid development. Over the last ten years, the Gujarat government promoted the beach heavily, constructing promenades, shopping plazas, and cycle tracks. The campaign succeeded wildly, drawing over 1.3 million tourists in the 2023–2024 seasons alone.

But that success has come at a severe environmental cost. The sheer volume of foot traffic has introduced a massive load of "invisible" waste—such as microscopic synthetic fibres shedding from swimwear, footwear, and discarded single-use packaging.

Compounding the problem is the beach's geography. Shivrajpur is a natural, crescent-shaped cove. While this makes for picturesque views, ocean currents turn the bay into a giant funnel, trapping plastic debris drifting from the nearby shipping lanes of Okha and the Gulf of Kutch.

Most of the contaminants recovered were blue and black fibres measuring a mere one to two millimetres. Chemical testing identified them as polypropylene and polyethylene—the primary components of commercial fishing nets, ropes, and shipping gear.

From Beach to Plate

The study's most troubling conclusion is how quickly these plastics are entering the local food chain.

The rocky-shore barnacle species Chthamalus barnesi was found to have the highest capacity for absorbing these microfibres. Because barnacles are a dietary staple for local crabs, fish, and coastal birds, these toxic synthetic polymers are bioaccumulating—climbing higher up the food chain with every predator.

For a state government that has pinned its coastal tourism strategy on the clean, eco-friendly image of the Blue Flag certification, the study is a stark warning: keeping a beach clean to the naked eye is no longer enough to protect the marine life living just below the tide—or the humans who ultimately eat them.