5 MIN READ
11-17-2025
Freeing Mangroves with CAS Biosciences: 4ocean Java Takes Action in the Bago River
Dika, 4ocean Jembrana Content Correspondent
The day began before sunrise as the River 2 4ocean Java Team prepared for a challenging mission on the Bago River. Thanks to the support of CAS Biosciences, the crew had the resources and equipment needed to carry out a cleanup in one of the most difficult environments along the estuary. After checking wind conditions, loading nets, fuel, and life vests, the team discussed the plan and set off toward the mangrove zone.
When they arrived an hour later, the scene was overwhelming. Thick clusters of plastic clung to the mangrove roots, hidden behind layers of mud and sand. Plastic bags, bottles, foam, rope, fabric, and old packaging had become deeply entangled in the branches, forming a dense barrier that blocked water flow and suffocated the roots.
The team wasted no time. With careful movements, they entered the mangrove area and began removing the waste piece by piece. Some crew members used ropes and nets to gather the floating debris near the waterline, while others worked knee-deep in mud to free plastic trapped between the roots. Every removal required precision to avoid damaging the trees.
After several hours of steady work, the sacks began to pile up. Captain Biatra instructed the team to load everything onto the boat and return to the dock. There, the crew weighed and recorded the final totals before sending the waste to the 4ocean Java base for responsible processing.
In total, the team collected 2,074.4 pounds of waste across 35 sacks. This included 510.8 pounds of plastic, 1,198.3 pounds of mixed waste, and 318.3 pounds of non-plastic materials.
For Captain Biatra, the effort carried a deeper meaning.“Big changes always start with small steps,” he said. “If everyone becomes more mindful about waste, dumping trash into rivers can stop. For us, this isn’t just an activity. It’s a mission to create a cleaner and healthier way of life.”
The challenges were constant throughout the day. High tides and strong winds made it difficult for the boat to stay steady. Sharp seashells along the shoreline created hazards for the crew. Thick layers of mud clung to ropes and plastic, adding weight to every lift. Even so, the team’s determination never wavered. Every piece of waste removed meant one less item entering the open ocean.
Plastic pollution across Indonesia’s waterways remains a threat, but this cleanup showed what is possible when communities, teams, and partners unite for the same purpose. With the support of CAS Biosciences, the Bago River mangroves are once again able to breathe.
For the 4ocean Java Team, this was more than another mission completed. It was a powerful reminder of what committed partners and consistent action can accomplish for the health of our planet.
