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Report

2026

The Population Status of Dugongs in Tamil Nadu

Johnson, J.A., Rajpurkar, S., Aggarwal, A. et al. (2026).

This document reports on the population status of dugongs in Tamil Nadu, covering Palk Bay, including the Dugong Conservation Reserve and seagrass habitats in the Gulf of Mannar. The report presents population estimates using non-invasive, state of the art tools, confirming that together, Palk Bay and the Gulf of Mannar represent India’s largest viable dugong population.

Locations:
India SOUTH ASIA
Report

2026

Conservation of Biodiversity, Seagrass Ecosystems and Their Services – Safeguarding Food Security and Resilience in Vulnerable Coastal Communities in a Changing Climate: Dugongs and Marine Megafauna Surveys

Project:

Seagrass Ecosystem Services Project

This technical report presents standardized methods and findings from dugong and marine megafauna surveys conducted under the IKI-funded Conservation of Biodiversity, Seagrass Ecosystems and Their Services project. It outlines practical, cost-effective approaches for monitoring dugongs and other marine megafauna using drone-based aerial imagery and standardized image analysis, enabling surveys to be undertaken by local practitioners. The report supports long-term monitoring of dugong populations as indicators of seagrass ecosystem health and provides guidance to strengthen evidence-based conservation and management of seagrass habitats and the ecosystem services they provide.

 

Publication

2023

Long-term persistence of large dugong groups in a conservation hotspot around Hawar Island, Kingdom of Bahrain

Project:

Community-Led Conservation Small-Grants

Khamis, A. et al. (2023), Aquatic Conservation: Marine and Freshwater Ecosystems, 1–14

Publication

2021

Long-term declines and recovery of meadow area across the world’s seagrass bioregions

Dunic, J.C. et al. (2021), Global Change Biology

Publication

2018

Seagrass in Southeast Asia: A review of status and knowledge gaps, and a road map for conservation

Fortes, M., et al. (2018), Botanica Marina 61 (3)

Publication

2015

Informing dugong conservation at several spatial and temporal scales in New Caledonia

Cleguer, C. (2015) PhD dissertation

James Cook University (JCU)

Publication

2012

Dugongs in the Philippines

Aragones, L. (2012), Sirenian Conservation: Issues and strategies in developing countries, Chapter: 7, University Press Florida (pp.68-70)

Locations:
Philippines
Action Plan

2012

National Conservation Strategy and Action Plan for the Dugongs and their Habitats in India

Prepared by the Task Force for Conservation of Dugongs in India under the Ministry of Environment and Forests, Government of India. An assessment of  issues related to the conservation of dugongs and implementation of the CMS Dugong MOU in India, to facilitate the country to act as the leading nation in the South Asia Sub-region with respect to dugong conservation.

Locations:
India
Publication

2004

Distribution, abundance, and conservation status of dugongs and dolphins in the southern and western Arabian Gulf

Preen, A. (2004), Biological Conservation, 118(2), p.205-218

Locations:
ARABIAN GULF
Report

2001

Dugong: status report and action plans for countries and territories

United Nations Environment Programme (2001)