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The chunks of black material (left) are plastic raffia strings. A rubber-canvas sandal (right) was among the finds.  ©Muhammad Irpan Tassaka / Wakatobi Marine and Fisheries Community Academy

The chunks of black material (left) are plastic raffia strings. A rubber-canvas sandal (right) was among the finds. ©Muhammad Irpan Tassaka / Wakatobi Marine and Fisheries Community Academy

Why was there a stranded sperm whale in Wakatobi, Indonesia?

22 Nov 2018

  • marine pollution
  • marine species
  • whales

Originally published by WWF-Indonesia and WWF-Singapore.  Written by Sharon Salim.


Last Sunday, a 9.5-metre sperm whale was found stranded off the coast in Kapota Island, Wakatobi — dead. Cause of death: unknown. But what we do know: a staggering 5.9 kg of plastic items found in its stomach.


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Paus Sperma (Physeter macrocephalus) yang ditemukan terdampar di Pulau Kapota, Wakatobi (18/11) dalam kondisi sudah membusuk dengan perut yang penuh sampah plastik, dikuburkan kemarin (20/11). Lokasi penguburan terletak di sekitar pantai Kolowawa, Desa Kapota Utara. Proses ini dilakukan saat air laut sedang pasang untuk memudahkan proses penarikan bangkai paus ke darat. -- Tindakan penguburan ini dilakukan untuk mendapatkan spesimen Paus yang bisa digunakan sebagai salah satu bahan pendidikan dan penelitian di kampus AKKP Wakatobi. Kondisi paus yang sudah membusuk membuat proses nekropsi tidak lagi memungkinkan untuk dilakukan, sehingga penyebab kematian paus belum diketaui hingga sekarang. -- Sobat, plastik yang selama ini sering kita gunakan ternyata dapat menimbulkan dampak yang sangat berbahaya bagi satwa laut. Yuk mulai dari sekarang kita kurangi produksi sampah plastik! #BeatPlasticPollution #TemanTamanLaut #Connect2Wildlife #Connect2Earth #TogetherPossible

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 WWF-Indonesia’s Dewi Satriani tell us more about this appalling incident.

Below, exclusive information povided by WWF-Indonesia on the timeline and all the things you need to know:

#1 The whale was found by a local on Sunday evening

WWF-Indonesia received a report from a community member of Kapota Island in Wakatobi on Sunday evening (Nov 18) informing them about an incident of a dead whale stranded off the coast.

The next Monday morning (Nov 19) at 7.30 AM local time, WWF-Indonesia, Wakatobi National Park, Wakatobi Marine and Fisheries Community Academy were deployed to the scene and discovered a whale carcass suspected to be a sperm whale.

#2 The whale was already in an advanced state of decay

This is the reason why it was not possible to conduct a necropsy to investigate the cause of death. In this stage of decay (level 4), the carcass was already releasing an overpowering stench and the body was not intact. A necropsy can only be done if the stranded whale is still in level 2 stage of decay; when the skin still appears tight, emitting no smell, and the eyes still shine.

#3 Identifying the whale was still possible

Even though the whale carcass was no longer intact, WWF-Indonesia Marine Species Specialist Dwi Suprapti conducted a photo analysis of the carcass sent by the WWF-Indonesia team and identified the stranded whale as sperm whale (physeter macrocephalus). It has a block-shaped head, narrow jaw and teeth.

Sperm whale is also the largest toothed-whale, unlike other large-sized counterparts that are toothless. The possibility of it being a baleen whale was also ruled out thanks to the absence of prominent, iconic features of baleen like the rostral ridge and ventral grooves. This further confirms the fact that the stranded whale is a sperm whale (and not a blue whale as some news outlets have reported).

#4 Finding a stranded whale in Wakatobi waters is not common

“Whales do migrate through Wakatobi waters. In certain seasons we can see many different kinds of whales passing through Wakatobi islands, but stranding is not common. This is the only time we’ve found a stranded whale, which is also (alarming) because we found plastics in its abdomen,” Dewi revealed.

#5 The locals decided to cut open the abdomen of the dead whale

The chunks of black material (left) are plastic raffia strings. A rubber-canvas sandal (right) was among the finds.

To be exact: there were 115 of plastic cups (750g), 19 pieces of hard plastic (140g), four plastic bottles (150g), 25 plastic bags (270g), a nylon sack (200g), and more than 1,000 pieces of plastic raffia string (3,260g) which totals to 5.9 kg inside the stomach, according to the identification result conducted by Wakatobi Marine and Fisheries Community Academy.

“This discovery is deeply upsetting. It is a wake-up call for Indonesia about how plastic pollution is causing irreparable damage to our oceans and marine life. We urge businesses and governments to work together to address this issue urgently to prevent further plastic leakage into our oceans.” said Dwi Suprapti, Marine Species Specialist WWF-Indonesia.

#6 There was no crowd management or public boundaries during the incidence

So as not to interfere or disturb the stranded whale, public members without any Personal Protective Equipment (PPE) including eye and face protection, gloves, and coveralls were advised to remain at a distance. This is a crucial protective measure to avoid any exposure of bacteria, virus or other dangerous microorganism emitted by the mammal and transmissible to human.

#7 The whale was buried two days after it was discovered

It was buried on Tuesday (Nov 20) at Kolowawa Beach, North Kapota in Wakatobi for later retrieval of the bone specimen by the Wakatobi Marine and Fisheries Community Academy.

#8 Plastic pollution is a transboundary problem that all countries share

Although it remains uncertain whether the plastics were lodging the sperm whale’s ingestion organ or caused infections, we can’t turn a blind eye to how plastics production and pollution are still growing exponentially.

Every year, 8 million tonnes of plastics enter the ocean. By 2050, the total mass of ocean plastic will exceed that of fish. Plastic debris kills an estimated 100,000 marine mammals annually, as well as millions of birds and fish.

#9: Beach clean-ups are not enough to solve the problem

A big part of marine pollution comes from land sources, including rivers. An effective response to this crisis requires a global systemic change involving businesses and governments — and supported by consumers.

#10 We cannot solve this issue alone

Knowing that marine plastic pollution goes beyond Indonesia and the region, the global crisis requires global solutions.

Businesses need to take responsibility for the full life cycle of their products and play their part in helping governments deal with this issue.

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