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Researchers Confirm Viable Ganges Shark Population in Sesayap River

8/27/2026

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Summary

Story summary

Indonesian researchers confirmed a viable Ganges shark population in the Sesayap River, North Kalimantan.
The IUCN Shark Specialist Group designated the river an Important Shark and Ray Area in 2024.
2026 fieldwork recorded 43 sharks and noted a fisherman caught 17 sharks in 2023.
Researchers say accidental bycatch, not market demand, threatens sharks and urge area-based protections.

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Story summary

Indonesian researchers confirmed a viable Ganges shark population in the Sesayap River, North Kalimantan.
The IUCN Shark Specialist Group designated the river an Important Shark and Ray Area in 2024.
2026 fieldwork recorded 43 sharks and noted a fisherman caught 17 sharks in 2023.
Researchers say accidental bycatch, not market demand, threatens sharks and urge area-based protections.