BLACKTIP REEF SHARK STUDY
This study examined the presence and movement patterns of juvenile blacktip reef sharks (Carcharhinus melanopterus) at Chagar Hutang Turtle Sanctuary, Redang Island, a site recognized
as a potential shark nursery ground in Malaysia. The sanctuary comprises well-protected shallow reef and lagoon habitats with minimal human disturbance, offering suitable conditions for juvenile sharks. Chagar Hutang has also been designated as an Important Shark and Ray Area(ISRA), underscoring its importance for elasmobranch conservation.
Blacktip reef sharks commonly utilize shallow coastal habitats during early life stages, yet their spatial ecology in Malaysian waters remains poorly understood. This study provides essential baseline information to support the identification and management of critical shark nursery habitats within marine protected areas.
METHODS
A passive acoustic telemetry array was deployed at Chagar Hutang Turtle Sanctuary, with receivers positioned at the east and west bays to monitor juvenile shark presence. Two juvenile blacktip reef sharks were acoustically tagged, and detections were recorded to assess habitat use and movement patterns. Data were collected over the study period from July to October 2024, with research support from RHB
Islamic Bank Berhad.
The findings show that juvenile blacktip reef sharks regularly use shallow coastal areas at Chagar Hutang, indicating its
importance as a potential nursery site. Protecting these nearshore habitats is therefore important for shark conservation.
KEY FINDINGS
