At least four people died on Thursday, May 5, when the homemade dynamite for fishing they were making exploded at a residence in a coastal village in Claveria town in Masbate province, police said Friday.

Two fishermen were killed while two others were wounded after the improvised dynamite they were about to use to catch fish exploded in the waters off Calbayog City, Samar on Saturday night.

Securing a vast area like the ocean requires cutting-edge technology to monitor illegal activities and safeguard aquatic species. What are the latest innovations being deployed to conserve protected areas of the ocean?