Unusual cetacean mortality event in Taiwan, possibly linked to naval activities

  title={Unusual cetacean mortality event in Taiwan, possibly linked to naval activities},
  author={W-C Yang and Lien-Siang Chou and Paul D. Jepson and Robert L. Brownell and Daniel F. Cowan and Pen Heng Chang and H-I Chiou and Chiou-Ju Yao and T K Yamada and J-T Chiu and P-J Wang and A. Polanco Fernandez},
  journal={Veterinary Record},
  pages={184 - 185}
SINCE the mid-1980s, a number of mass strandings of cetaceans, mainly involving deep-diving beaked whales, have occurred coinciding with the use of mid-frequency active sonar by the military ([Frantzis 1998][1], [Anon 2001][2], [Jepson and others 2003][3], [Fernandez and others 2005][4], [Cox and 

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Morbillivirus-associated unusual mortality event in South Australian bottlenose dolphins is largest reported for the Southern Hemisphere

It is concluded that the cause for the UME was multifactorial and that CeMV was a major contributor, and the pathology included interstitial pneumonia, lymphoid depletion and syncytia.

Cetaceans in the global centre of marine biodiversity

Temporal differences in sightings suggest Raja Ampat is an important area for migratory whale species and resident populations of Indo-Pacific humpback Sousa chinensis, spinner Stenella longirostris and common bottlenose Tursiops truncatus dolphins.

Cetaceans in the global centre of marine biodiversity

Temporal differences in sightings suggest Raja Ampat is an important area for migratory whale species and resident populations of Indo-Pacific humpback Sousa chinensis, spinner Stenella longirostris and common bottlenose Tursiops truncatus dolphins.

The first record of a Longman’s beaked whale (Indopacetus pacificus) newborn neonate found on Miyako Island, Okinawa, Japan

The Longman’s beaked whale ( Indopacetus pacificus ) is one of the rarest cetaceans worldwide. Since it was first described as its own species in 1926, they have been observed alive at sea on several

High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas).

The "Southern form" of short-finned pilot whale (Globicephala macrorhynchus) in tropical west Pacific Ocean off Taiwan

The short-fi nned pilot whale (Globicephala macrorhynchus) is a mid-sized toothed whale, widely distributed throughout warm-temperate to tropical regions of the Atlantic, Pacifi c, and Indian oceans.

Longman’s Beaked Whale Indopacetus pacificus and Mesoplodon spp. Entanglements Off Pakistan: Are Pelagic Gillnet Fisheries a Potential Threat?

Beaked whales (Ziphiidae) are rarely reported in the Arabian Sea. Four new cases (five individuals) were documented in deep waters offshore Pakistan through a pilot programme in 2015-2018 where

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The MSE may have been a “two-stage process” where a group of normally pelagic dolphins entered Falmouth Bay and, after 3–4 days in/around the Bay, a second acoustic/disturbance event occurred causing them to strand en masse.



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Evidence of acute and chronic tissue damage in stranded cetaceans that results from the formation in vivo of gas bubbles is presented, challenging the view that these mammals do not suffer decompression sickness.

Report on Marine Mammal Unusual Mortality Event UMESE0501Sp:Multispecies Mass Stranding of Pilot Whales (Globicephala macrorhynchus), Minke Whale (Balaenoptera acutorostrata), and Dwarf Sperm Whales (Kogia sima) in North Carolina on 15-16 January 2005

On 15-16 January 2005, three offshore species of cetaceans (33 short-finned pilot whales, Globicephala macrorhynchus, one minke whale, Balaenoptera acutorostrata, and two dwarf sperm whales, Kogia sima) stranded alive on the beaches of North Carolina and qualified as an Unusual Mortality Event.

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Gas-bubble disease, induced in supersaturated tissue by a behavioural response to acoustic exposure, is a plausible pathologic mechanism for the mortality andbidity seen in cetaceans associated with sonar exposure and merits further investigation.

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The present study demonstrates a new pathologic entity in cetaceans, apparently induced by exposure to mid-frequency sonar signals and particularly affects deep, long-duration, repetitive-diving species like BWs.


Four new specimens of Longman's beaked whale are described from strandings in the western and central Indian Ocean, finding no reason on morphological grounds to overturn Moore's (1968) proposal that Longman’s beaked whales is sufficiently distinct to be afforded its own genus.

Does acoustic testing strand whales?

It is found that a recent stranding of Cuvier's beaked whale coincided closely in time and location with military tests of an acoustic system for submarine detection being carried out by the North Atlantic Treaty Organization (NATO).

Acute and Chronic Gas Bubble Lesions in Cetaceans Stranded in the United Kingdom

The first evidence suggestive of in vivo gas bubble formation in cetacea, including eight animals stranded in the UK, has recently been reported. This article presents the pathologic findings from

Monitoring bubble growth in supersaturated blood and tissue ex vivo and the relevance to marine mammal bioeffects

There have been several recent reports that active sonar systems can lead to serious bioeffects in marine mammals, particularly beaked whales, resulting in strandings, and in some cases, to their

Can diving-induced tissue nitrogen supersaturation increase the chance of acoustically driven bubble growth in marine mammals?

It is demonstrated that the diving behavior of cetaceans prior to an intense acoustic exposure may increase the chance of rectified diffusion, and model results suggest that low-frequency rectification diffusion models need to be advanced, and the dive behavior of marine mammals of concern needs to be investigated to identify at-risk animals.

Unusual cetacean strandings in summer 2005, Taiwan

  • In An International Symposium on Unusual Cetacean Strandings in Summer 2005, Taiwan (program and presentations). Taipei, Taiwan Cetacean Society
  • 2005