Overview
On July 4, 2026, fishermen on Kozhikode beach in Kerala found a dead Indian Ocean humpback dolphin and a dead Indo‑Pacific finless porpoise. Post‑mortems showed that a 2 kg plastic fishing net lodged in the dolphin’s oesophagus caused its death, while the porpoise likely suffocated after entanglement. The incident underscores the growing menace of plastic pollution and ‘ghost nets’ along India’s coastline.
Key Developments
- Necropsy of the ~200‑kg dolphin revealed an empty stomach and a 2 kg plastic net trapped in its oesophagus, leading to starvation.
- The ~80‑kg porpoise showed signs of suffocation, probably after getting caught in a fishing net.
- Data from the CMFRI recorded 171 strandings of 11 species in 2024 and 161 strandings of 14 species in 2025 along the Indian coast.
- Goa reported the highest strandings (87 in 2024, 113 in 2025); Kerala reported 29 in 2024 and 15 in 2025.
- Indian Ocean humpback dolphins accounted for 129 strandings over two years, with numbers rising from 47 (2024) to 82 (2025).
Important Facts
Marine mammals are especially vulnerable because many species, such as the humpback dolphin, live in waters less than 20 m deep and within a few kilometres of the shore. This proximity brings them into direct contact with human activities like fishing and coastal waste disposal. Experts identify three main anthropogenic threats:
- Plastic pollution that is mistaken for food.
- Ghost nets that entangle dolphins, turtles, and fish.
- Direct entanglement in active fishing gear, which can tear nets and cause drowning.
Exam Relevance
The episode links to several UPSC syllabus points. Understanding the IUCN Red List status of species helps answer questions on biodiversity loss. The role of CMFRI illustrates how scientific agencies inform environmental governance. The impact of plastic and ghost nets ties into discussions on sustainable development, marine pollution control, and the implementation of international conventions such as the UNCLOS framework.
Way Forward
Experts recommend a multi‑pronged approach:
- Strengthen monitoring by conducting systematic post‑mortems and publishing findings to guide conservation actions.
- Implement location‑specific measures such as seasonal fishing bans in high‑risk zones and the use of dolphin‑safe gear.
- Promote community‑driven beach clean‑ups and reduce single‑use plastics, especially soft plastics that break into micro‑fragments.
- Enhance the retrieval of ghost nets through dedicated de‑netting programmes and impose penalties for illegal discarding of gear.
- Improve data collection by the Kerala Forest Department and integrate it with national databases for better policy response.
Collective action by government agencies, scientists, fishers, and the public is essential to safeguard coastal marine mammals and preserve the health of India’s marine ecosystem.