Tag Archives: pink dolphin

Fourth Dead Cetacean Found in 1 Week

A dead finless porpoise (Neophocaena phocaenoides) was found in Discovery Bay on Sunday afternoon, the fourth dead marine mammal discovered in four days after the bodies of three dolphins were discovered on Thursday.
It was found in the water and handed over to the Ocean Park Conservation Foundation for an autopsy. The OPCFHK said that the porpoise was a 1.55 metre long female and the body had reached the fourth stage of decomposition. Its cause of death has yet to be determined.

On Thursday, the bodies of three Chinese white dolphins (Sousa chinensis) were found – one entangled in fishing wire near Lido Beach in Sham Tseng, one in waters near Lamma Island and another in Fan Kwai Tong off Lantau Island.

The Hong Kong Dolphin Conservation Society (HKDCS) estimate that there has been a decline since 2014, when 61 dolphins were estimated to be in Hong Kong waters.

Chinese White Dolphin spotted in Pearl River near Guangzhou

As reported by several news outlets this week, a Chinese White Dolphin (Sousa chinensis) – aluas Indopacific Humpback Dolphin or ‘pink dolphin’ – was spotted near Guangzhou in the Pearl River on Wednesday the 21st of October. This drew some crowds as the dolphin stayed for about an hour. Conservation staff later used sonar equipment to try to herd it back out towards the sea -apparently with some success.

  
This story is however quite hyped-up, because these dolphins live near estuaries and previous studies have shown they move further into the estuary in the dry winter months when less freshwater is flushed into the sea by the Pearl River. In summer when the heavy rains come and the river swells the dolphins range extends further out. This is likely because they are following fish stocks that themselves track a line of salinity which mobmves in and out of the estuary with the seasons. Some fish like the flathead mullet (Mugil cephalus) commonly sold in fish markets also move in and out of fresh and seawater depending on their stage in life.

Speaking of which, I saw another prize catch of a mullet on the central waterfront yesterday. It’s a bigger fish than I have seen in any market at about 40 cm and probably 2+ kg – it drew a small crowd and plenty of mobile phone cameras. congratulations to the lucky angler!

  

Dolphin Hope Died in an Aquarium – Scared and Alone – Was That Humane?

‘Hope’, the Chinese White Dolphin injured by a boat propeller in January, was euthanised on February 10th after its bodily functions started to shut down overnight. Hope was first sighted by university students on January 16 with large wounds on its back that were so deep they exposed the marine mammal’s vertebrae. The spines above its fluke was completely severed.

Bowing to intense public pressure and activist lobbying, ‘rescuers’ located and caught it 18 days later at Lantau’s Shek Pik area. He was then handed over by the Agriculture, Fisheries and Conservation Department to Ocean Park’s rehabilitation facilities, where he was given fish, tubing fluids and antibiotics and where a vet cleaned the wounds.

Initially there were some signs of slight recovery as carers attempted to help him regain the loss of more than 20 percent of his body weight (up to 50 kg), after at least three weeks of limited feeding, by hand feeding him fish .

But his condition only deteriorated overnight (10-11th of February) and it failed to respond to treatment. He began regurgitating his food and his breathing became weak. His body temperature started to drop and he lost buoyancy.

A necropsy and a virtopsy will be performed to investigate the extent of Hope’s wounds, internal organ damage and infection to allow park staff to as much as possible for the care of any future injured dolphins. 

 As mentioned in my previous post on Hope’s capture, Ocean Park and almost every other captive dolphin facility have a pretty poor record at keeping even healthy dolphins alive, let alone rehabilitating them (successes are the exception that prove the rule).
But activists and the general public were not satisfied with this or the prospect of the dolphin simply dying in the sea, so the animal was ‘rescued’ and transferred to a sterile, featureless and alien environment (tank) in a operation that would have increased stress levels, where it was then completely alone without even the possibility of acoustic contact with other members of its own species. The chances, as Ocean Park’s vet in charge even said, were always slim for such severe injuries. So faced with the highly likely death of the dolphin – it was decided it should die all alone – scared and stressed – in addition to its painful and fatal injuries.

Many people harbor feelings of passive misanthropy – a latent hatred of humanity, because we all know humans are screwing up the environment. The result is a desperate need to ‘fix’ the situation. Consequently, scientific opinion is frequently dismissed and even attacked, if it advises the public to not act. In the case of Hope the dolphin, HK’s leading expert on local dolphins  Dr Samuel Hung was publicly criticised and his reputation damaged because he advised leaving the dolphin alone. Scientifically that was the right call. But most people did not want to hear that. People like to humanize dolphins and that is good in some ways, in fact it helps their conservation to some extent. But the humanising of animals serves primarily human emotional needs to love and care for another living being. The side effects can be both positive and negative. 

The ‘rescue’ of Hope was dubbed a ‘humane act’, but if you think it through the vast majority of humans, if we could chose the setting of our own death, would want to die in familiar surroundings with family and friends present. The prospect of our final moments being born out in a clinical, chlorinated prison cell completely alone except for the watchful eyes of the group of aliens who removed us from our homes and put us in the cell. This sadly is how Hope met his end.

What is interesting, too, is that the same activists who insisted on putting this dolphin in a marine-themed amusement park facility, also adamantly campaign against this dolpinarium facilities at the same time.  This indicates to me that there is not a rational reason behind the rescue, but more of an emotional one.

So there we have the even sadder end of an already sad tale. Sometimes ‘rescuing animals’ can be the worst thing to do.

3rd Dead Dolphin of 2015 Found Near the Airport

A team from the Ocean Park Conservation Foundation (OPCF) yesterday (24/3/2015) examined the dead body of a Chinese white dolphin found in waters near the Hong Kong airport.

The carcass was first spotted floating off of the Brothers, a pair of islands to the northeast of the Hong Kong International Airport.

The team was unable to determine the cause of death since the body was severely decomposed, but samples were collected for further study.

“Unfortunately, we can only confirm the cause of death in less than 10 percent of cases, mainly because most of the carcasses are badly decomposed when discovered,” said Shadow Sin, the assistant manager of scientific projects for OPCF.

  

It’s the third cetacean stranding case reported so far this year. This month also so the death of the injured dolphin nick-named ‘Hope’.

Hong Kong’s Chinese white dolphins, widely known as pink dolphins, are threatened by habitat loss and marine traffic.

The range of pink dolphins in Hong Kong has shrunk substantially since the construction of the Hong Kong International Airport at Chek Lap Kok.

If you spot a dead or distressed animal you should immediately call the Hong Kong government hotline at 1823. 

Images by Ocean Park Conservation Foundation

Before and After Images of Dolphin Injured by Boat Propeller

The dolphin recently spotted with terrible dorsal fin and back injuries likely caused by an outboard motor has been identified as an individual frequently spotted in Hong Kong waters off Lantau Island (see map below). The individual designated WL212 was identified by cross-referencing against a photographic database of dorsal fin markings. This allows us to make the before and after comparison of the injuries in the featured image courtesy of the HKDCS (HK Dolphin Conservation Society).

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All images from HKDCS

32nd Pink Dolphin Stranding for 2014

Ocean Park Conservation Fund (OPCF) HK’s Cetacean Stranding Response Team is investigating a Chinese white dolphin (Sousa chinensis) stranding case yesterday (10th August 2014). A female adult measuring 2.53 m in length was found with bruises near the blowhole and both left and right flippers. Because the body was severely decomposed, the cause of death could not be readily determined and OPCF collected samples for further examination.

This case brings the total number of stranding case this year to 32. Please call 1823 to report any strandings.

OPCF staff examine the body of the 32nd stranding of 2014. (Image by OPCF)
OPCF staff examine the body of the 32nd stranding of 2014. (Image by OPCF)

HK Airport 3rd Runway Risks Loss of Hong Kong’s Remaining Dolphin Population

Conservationists claim that only three sightings of Chinese white dolphins have been recorded in Hong Kong this year.
The population of Hong Kong’s Chinese White Dolphins has dropped by 60% since 1997 in what the Hong Kong Dolphin Conservation Society (HKDCS) calles an ecological disaster. Since 1997 the dolphin’s habitat saw the completion of the Chek Lap Kok International Airport, wave after wave of town development in Tung Chung and Tuen Mun, a landfill development and more recently, the construction of the Hong Kong-Zhuhai-Macau Bridge project which is still ongoing. This HKDCS says has almost destroyed the white dolphins habitat.

According to statistics, there were 158 white dolphins in Hong Kong in 2003 but this number fell to 62 last year (2013) – a drop of 60% -causing great concern. In addition the current scheme to build a third runway at the airport, would cover an area of 650 hectares and would be the second largest reclamation project ever and is loacted in the white dolphins habitat. But the Airport Authority so far refuses to set meet with environmental groups and refuses to give full explanation of data and has been jointly criticized by nine environmental groups. It is currently understood that the Airport Authority will soon publish and interim Environmental Impact Assessment report on the third runway project and a 30th public consultation will be held.

WWF Infographic showing threats to the chinese white dolphin in Hong Kong (click to enlarge to original size)
WWF Infographic showing threats to the chinese white dolphin in Hong Kong (click to enlarge to original size)

The construction works have forced the dolphins to move further west as the noise affects their navigation and communication skills and the barges parked in the harbor creates sediment blooms affecting their food supply. Either that or they’ve died and or giving less birth.

Samuel Hung, President of Hong Kong Dolphin Conservation Society, urged the public to make good use of 30th consultation to express their views and take concrete actions to protect white dolphins. The Hong Kong dolphin conservation, Hong Kong Friends of the Earth and public Professional Union has conducted a “social cost and the returns assessment” study to estimate the effects of the third runway project’s on the public and its social effects which found that the white dolphin could earn Hong Kong some HKD 36.1 billion over ten years in ecological tourism revenue.