Monitoring Sulu Sea’s reef region

A group of researchers recently embarked on consecutive reef research trips in Sulu Sea, said to be the richest reef region in the world, to monitor the coral reef situation in Tubbataha, Cagayancillo islands, Honda Bay, and Taytay in Palawan. 

Monitoring Sulu Sea’s reef region
DIVING FOR BETTER UNDERSTANDING. The team of researchers from DLSU-SHORE and WWF-Philippines conducts reef research trips to assess coral cover and recruitment in Sulu Sea. 
With grant from World Wide Fund for Nature Singapore, Dr. Wilfredo Licuanan with his team of research assistants from the De La Salle University Br. Alfred Shields FSC Ocean Research Center (DLSU-SHORE) and the WWF-Philippines, conducted reef monitoring for the project dubbed Designing of Monitoring and Evaluation System for Coral Reef Resilience and Fisheries Sustainability in Northeast Palawan through Marine Protected Areas (MPAs) or Network of MPAs. 

The project kicked off with a week-long navigation in Tubbataha Reefs Natural Park, where 10 previously established coral monitoring stations were surveyed, including the ship grounding sites of Ming Ping Yu and USS Guardian. 

In 2013, the grounding sites of the two vessels left fields of rubble, an environment where little to no coral could recruit. However, upon consistent monitoring, Dr. Licuanan found that some plots, specifically in the USS Guardian, are recovering. 

“Our projections on recovery rates at the USS Guardian site appear accurate. The impact plots should look like how it was before the grounding in four years,” expounded Dr. Licuanan. 

“One Ming Ping Yu plot is also doing well,” he added

Monitoring Sulu Sea’s reef region
Researchers assess the situation in Cagayancillo. 
In June, the research team established monitoring stations in Arena atoll, and in Cawili, Calusa, and Dondonay islands—all part of the Cagayancillo group of islands 178 nautical miles off the coast of Puerto Princesa, and approximately four hours away from Tubbataha. 

“The Cagayancillo reefs are interesting as most sites we visited have coral cover levels of oceanic reefs and atolls yet also have the diversity of inshore fringing reefs,” said Dr. Licuanan. 

During his surveys, he also observed that the corals in the Arena atoll are most likely prone to temperature fluctuation because of the surge of warm water from the lagoon as the tide changes. This brought him to a hypothesis that the Arena might have climate-resilient corals.

“I suspect it will be tested in the next few weeks as the seas are expected to get warmer in the region,” he said, adding, “I wish we can revisit those reefs sooner.”

Before the month ended, DLSU-SHORE and WWF-Philippines organized a reef assessment training in Puerto Princesa with delegates from the Tubbataha Management Office, Western Philippines University, Palawan State University, Palawan Council for Sustainable Development, Office of the Provincial Agriculture, Office of the Puerto Princesa City Agriculture, Provincial Environment Office of the Department of Environment and Natural Resources, and Smart Seas Philippines. 

Monitoring Sulu Sea’s reef region
Reef survey team gears up for the establishment of a monitoring site in Calusa island. 
The collaboration with concerned stakeholders and academic institutions is key for establishing a reef monitoring system in the region. 

“Working with local people to effectively manage MPAs entails having a common understanding about the situation of the marine environment in the area. Science plays a significant part to achieve this. As we experienced in the past, research results helped explain better the local observations and insights, thus creating a platform for meaningful conversations,” averred WWF-Philippines project manager Marivel Dygico. 

For Dr. Licuanan, monitoring reefs is a necessary step after the three-year nationwide coral reef assessment project. 

“Monitoring allows us to generate information that we can act on, and potentially save corals. Assessments are useful only for writing obituaries for nature,” he opined.

Topics: World Wide Fund , Wilfredo Licuanan , Sulu Sea , Alfred Shields
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