Fishing Cat – Endangered Shadows of Vanishing Wetlands in India
By P. Sathiyaselvam
The elusive fishing cat Prionailurus viverrinus, a species intrinsically
linked to Asia’s wetlands, faces an increasingly precarious future. Once
distributed across a patchwork of territories from Pakistan to Java, its range
is now fragmented and shrinking. In India, this endangered feline persists
primarily in the eastern regions, including West Bengal, Assam, Odisha, and
parts of Andhra Pradesh, as well as along the Himalayan foothills in the Terai.
While occasional sightings occur in protected areas such as Keoladeo National
Park and Ranthambhore Tiger Reserve, these have become increasingly rare,
underscoring the species’ decline in the western regions.

A combination of human
activities has driven this alarming trend. The relentless destruction of
wetland and floodplain habitats – fuelled by unchecked development,
unsustainable aquaculture, and encroaching agriculture – continues to erode the
fishing cat’s natural domain. Illegal hunting, compounded by rural and urban
land policies that prioritize human expansion, further exacerbates the
situation. Additionally, the proliferation of brick industries near these
delicate ecosystems contributes to environmental degradation. If immediate and
intensive habitat protection measures are not implemented, a further decline in
fishing cat populations is anticipated in the near future.
In this context, the
Coringa Wildlife Sanctuary, located along the eastern coastline of India in
Andhra Pradesh, plays a critical role in conservation efforts. With its unique
mangrove ecosystem and intricate network of waterways, the sanctuary offers a
potential stronghold for the fishing cat. However, like other habitats, it
remains vulnerable to the same threats that imperil the species elsewhere. A
deeper understanding of the fishing cat’s ecology – both within Coringa and
across its range – is urgently needed. Despite its endangered status,
significant knowledge gaps persist regarding its foraging and breeding biology,
social behaviour, and current distribution, all of which hinder effective
conservation strategies. Addressing these gaps is essential for securing the species’
future, and with dedicated research and protection efforts, Coringa Wildlife
Sanctuary could emerge as a key refuge for the fishing cat in India.
Spanning 235.7 square
kilometres at the confluence of the Godavari River and the Bay of Bengal in the
East Godavari District, Coringa Wildlife Sanctuary is part of the Godavari
Estuary and features extensive mangrove cover. The region experiences
temperatures ranging from 17°C to 40°C and receives over 1,000 millimetres of
annual rainfall. The sanctuary’s northern portion includes approximately 100
square kilometres of Kakinada Bay backwaters.
Initial studies on the
fishing cat population within the Coringa Wildlife Sanctuary involved a
comprehensive survey encompassing 134 grids across the sanctuary’s mangrove
expanse. This survey utilized pugmark and scat analysis, direct sightings with
GPS coordinates, and behavioural observations to map the fishing cat’s
distribution and movements. Additionally, between June 2014 and July 2015, 60
camera traps, deployed in pairs for 15-day periods synchronized with spring and
neap tides, were used to capture photographic evidence. Individual fishing cats
were identified based on their unique pelage patterns, and the initial study
estimated a population of 95 to 100 individuals within the sanctuary.
Recognizing the importance
of understanding the broader population dynamics, the study recommended
extending surveys to adjacent mangrove areas within the Godavari delta.
Activity patterns were correlated with tidal data obtained from online sources
to understand the fishing cat’s behaviour to tidal fluctuations. Subsequently,
in 2018, the Andhra Pradesh Forest Department conducted follow-up surveys,
employing similar methodologies, and recorded 115 individual fishing cats within
the Coringa Wildlife Sanctuary and its adjoining mangrove areas.
More recently, in
2023–2024, the Wildlife Institute of India (WII) conducted further
investigations, resulting in an estimated population of 85–90 individual
fishing cats. These varying estimates highlight the dynamic nature of wildlife
populations and underscore the importance of continuous monitoring. The
fluctuations observed may be attributed to a variety of factors, including
habitat changes, prey availability, and natural population cycles. Further
research is necessary to fully understand the factors influencing fishing cat
population dynamics within the Godavari mangroves, and continuous monitoring is
crucial for effective conservation strategies.
Interviews with residents
from the villages surrounding Coringa Wildlife Sanctuary highlighted several
human-fishing cat conflicts. Fishermen reported annual losses of 10 to 20
kilograms of fish to fishing cats, resulting in monetary losses for the
fishermen. Fear-driven attacks on fishing cats by crab collectors were also
reported, stemming from a belief that the animals target human eyes. Aqua
farmers suffered losses from fishing cats preying on farmed fish and prawns,
with annual financial losses. Fishing cats explored gaps in aquaculture pump
houses and were sometimes killed by electric fences or direct attacks.
Villagers reported fishing cats entering their communities, particularly during
summer, to prey on poultry and lambs, leading to retaliatory killings through
snares or beatings. Expanding industrial development and aquaculture outside
the sanctuary has further reduced fishing cat habitat, forcing them into
human-dominated areas where they face heightened risks.
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Raising awareness is
crucial to the effective protection of fishing cats in Coringa Wildlife
Sanctuary. Surveys revealed significant knowledge gaps among local communities,
with most residents unaware of the species’ protected status. They expressed a
willingness to support conservation efforts. Awareness campaigns and constructive
dialogues between wildlife managers and local stakeholders are essential to
building trust and facilitating information exchange. Additionally, radio
telemetry is recommended to enhance understanding of the fishing cat’s
behaviour and ecology. Given their nocturnal and elusive nature,
radio-collaring at least five individuals (two males and three females) would
provide valuable insights into habitat use, home range, and seasonal movements,
ultimately aiding conservation planning within the sanctuary and surrounding
mangrove areas.
Coringa Wildlife Sanctuary
harbours a significant fishing cat population along India’s east coast,
warranting its designation as a dedicated Coringa Fishing Cat Sanctuary under the Ministry of
Environment, Forest, and Climate Change’s species recovery programme.
Subsequently, it was discussed in the high-level forum. Experts suggested that
declaring it as a fishing cat sanctuary may lead to a life threat to the animal
as it is hunted elsewhere by the people for table purpose. A protected area and
conservation activities are proposed to safeguard the mangroves in the region.
It is worth prioritizing the area as a specialized fishing cat conservation
reserve to give pride to the secretive species. Areas dominated by Suaeda maritima,
crucial for kitten rearing, must be preserved and excluded from mangrove
expansion initiatives. Furthermore, restoration efforts should focus on
clearing invasive Eichhornia
species from creeks and canals to mitigate siltation and maintain a healthy habitat
for the fishing cat.
■ P. Sathiyaselvam, Deputy Director of the BNHS, is trained in satellite tracking, and has been involved in Bird Migration studies since 2002.