From March to May, Sicklefin lemon sharks (Negaprion acutidens) come to the shallow waters in Dongsha island. Away from the coast, shark fins gliding through the water becomes a common scenery. Through aerial photography, it is shown that these sharks are swimming strenuously with their enormous bodies in the west coast. In early April, research team also spotted baby sharks which length 60-70 cm spawning in the shallow waters. The team speculates that adult sharks are protecting their youngsters from being hunted by other sharks. Also, swimming in shallow waters and lagoons can train their hunting skills. Due to several reasons, adult sharks move to Dongsha island in spring, and eventually return to deep waters after delivery date.

Lush seagrass beds surrounding Dongsha Island, ideal habitats for juvenile marine life (Photo by Hui-Ju Chen)	Blacktip lemon shark juveniles commonly feeding in seagrass beds. (Photo by Yu-Yun Chen)

Research team conducting morphometric measurements on sharks. (Photo by Yu-Yun Chen)	Juvenile sharks are temporarily held in a set net post-measurement to monitor recovery before release. (Photo by Yu-Yun Chen)

Seagrass leaves pose a challenge during surveys; researchers clear nets clogged with seagrass. (Photo by Yu-Yun Chen)	Rays are also common residents of seagrass beds. (Photo by Hui-Ju Chen)