Tag Archives: Hong Kong

11 Sea Turtles Released Back Into The Sea

On the 29th of June (2017) the AFCD (Agriculture Fisheries & Conservation Department) released 10 green turtles (Chelonia mydas) and one hawksbill turtle (Eretmochelys imbricata) in the southern waters of Hong Kong.

The turtles were among the 35 green turtles and one hawksbill turtle seized from a fish raft in Sok Kwu Wan Fish Culture Zone (Lamma Island) in September 2016.

The 10 green turtles and the hawksbill turtle weighed from 11.5 kilograms to 61 kg and measured about 45 centimetres to 82cm in carapace length. All of them were assessed by veterinarians of OPHK as being in good condition and ready to be returned to the sea. The other green turtles were already released in November 2016.

A green sea turtle released into the sea by AFCD staff

Before the turtles were released to the sea, they were tagged with a microchip and Inconel tags for future identification. Satellite transmitters were also attached to the carapaces of the turtles. By tracking the movement and feeding grounds of green turtles in the sea, the AFCD can collect data for formulating appropriate conservation measures and share its findings with other conservation authorities for the better conservation of sea turtles. Satellite tracking revealed that the some of the turtles released in November 2016 headed south to the South China Sea via different routes, reaching Wanshan Archipelago, Dongsha, Nansha and Xisha Islands, Hainan Island and as far as Malaysia.

The green turtle and the hawksbill turtle are globally endangered and critically endangered species respectively. In Hong Kong, all sea turtle species are protected under the Wild Animals Protection Ordinance and the Protection of Endangered Species of Animals and Plants Ordinance . Of the five sea turtle species found in Hong Kong waters, the hawksbill turtle is relatively rare and the green turtle is to date the only species known to nest locally.

Pregnant Chinese White Dolphin Found Dead On Lamma Island Beach

On the morning of the 2nd July (2017), a man fishing at Kat Tsai Wan, off the west coast of Lamma Island, found a 2.5 meter long pink dolphin washed up on the beach. The man told Apple Daily that he could tell from his boat that the animal was dead.

The Ocean Park Conservation Foundation Hong Kong (OPCFHK) response team visited the site and conducted a necropsy on the beach. The dolphin was an adult female and was carrying an unborn calf at full term.


The male calf measured 1.02 m in length,  was also dead. The foundation said in a statement that no net entanglement or evidence of physical trauma was found on either carcasses, and both were severely decomposed.


The OPCFHK team said the mother dolphin’s organs and flesh indicated that she was very healthy prior to her death. The team has took organ, blubber, and tissue samples for further testing, inlcuding for microplastics.

The Ocean Mamba – an April Fools Joke

If you come across this widely shared Facebook post of a highly Benefizspiel, invasive species or released exotic pet called Ocean Mamba spotted at Repulse Bay, you can relax. It’s just an April Fools Joke. No such snake species exists and even it’s scientific name ‘Dendroapsis Oceanum’ is grammatically wrong. 

Rare Marine Bio Job Offer Posting

Jobs in Marine Biology are rare and even more so in Hong Kong. So when I saw this one posted, I had to share:

Company: ERM Hong Kong LTD.

Responsibilities:Conduct marine mammal observation/monitoring on construction vessels/ land-base in infrastructure projects

Working Hours: From 7 am to 5:30 pm

Working Location: Lantau Island & Tuen Mun

Training will be provided before the commencement of work

Requirements:

Form 5 graduate or above

Patient, responsible, positive and passionate about ocean

Willing to work outdoor, on shifts and during weekends and public holidays

Experience in observing dolphins is preferred but not a must

Immediately available is preferred

Fresh graduates will also be considered

The minimum of working days for the full-time position will be 18 days per month. For the part-time position, the working days will be 5 to 7 days per month.

Original Ad posted here at CP Jobs.

New Species of Tree-Climbing Crab Discovered in HK

Haberma tingkok that’s the name given to a new species of mangrove crab that climbs in trees along the eastern coast of Hong Kong. It was collected from branches between five and six feet high.

It has a dark brown upper shell, or carapace, long, thin legs that are light brown, and its claws, or chelipeds, are a brownish orange.

Mangrove crabs are quite small. The collected specimens measured between 8 and 9 millimeters in length, less than a third of an inch.

Scientists from the University of Hong Kong and the National University of Singapore described the new species in the journal ZooKeys.

The genus Haberma now contains three species. Peter Ng, a marine biologist at NUS and co-author of the latest study, established the genus 15 years ago and helped discover all three species (the other two are H. nanum and H. kamora).

H. tingkok was named after the Ting Kok mangrove stand, in Tolo Harbour, where it was found in the mid intertidal area. The area is the largest mangrove stand on the eastern coast of Hong Kong.

Hong Kong’s mangroves and the species they shelter are under threat from pollution and land reclamation projects.

Image credit: Dr Peter Ng

Hong Kong’s Only Marine Reserve Under Strain of Unruly Visitors

The SCMP reported yesterday that a surge in visitor numbers to the ecologically sensitive Cape D’Aguilar and its marine reserve has disrupted the work of scientists, with people even collecting animals and fishing illegally.

Quoting Professor Gray Williams of the Swire Institute of Marine Science research facility (SWIMS) it reported that a surge of visitors in the past few years to Cape D’Aguilar at the southeastern tip of Hong Kong Island has disrupted research and experiments and raised safety concerns.

Some of the damage caused was cited as treading on things, changing the water supply, pulling small seedlings out of their pods and not putting them back and so that they die and standing on animals and thereby killing them.

The researchers and students at the station also observed visitors collecting animals or fishing in the area, which is illegal as the area is a no-take marine reserve.

The research centre and nearby residences are private property but visitors have attempted to enter the buildings – some successfully – despite the “private property” signs . The centre has therefore put up barriers and installed locks, but people are still attempting to bypass them. Most visitors were generally “very reasonable” when confronted, but some refused to stop what they were doing and loud arguments with resulted, according to Williams.

Williams said he did not want to impose the “ultimate” solution of putting up a wall, because it would spoil the aesthetics of the place, but may have to consider it if the situation did not improve.

The area surrounding SWIMS at Cape d’Aguilar is a designated site of scientific interest by the government in 1991. SWIMS opened in November 1994 to conduct marine research in and around the marine reserve.

Around 2013 after a number of articles about Cape D’Aguilar Lighthouse in local newspapers, researchers saw a marked increase in sightseers to the area . Unobscured by air and light pollution the area also saw many star-gazers who want to study a night sky . There are even websites arranging trips by tour groups, with some even listing the private research facility as a landmark to visit. All of this is putting increased pressure on the site’s ability to handle visitors.

Williams hoped that making people aware of the situation could help to minimise the impact their presence had on the area.
“Trying to go through education, to explain to people, that if you are to come down here then you need to be careful to make sure that [they] don’t disrupt the environment, because we can see that the environment has already been damaged by the number of people coming here,” he said.

A spokeswoman for the Agricultural, Fisheries and Conservation Department said its responsibility was to the marine reserve – the waters below the high tide mark – and not the coastal rocky area or other land areas in Cape D’Aguilar.

(My own commentary on this: Unlike the clear distinction of areas of responsibility in HK government departments, the marine habitats do not generally define so clearly. The cross-over from sea-to-land is not a distinct line but a continuum with dependencies on both sides. Many insects and land invertebrates will feed on marine detritus at low tide, many land plants disperse via the sea, and many marine animals depend on land-based organisms for food. It would be wise for government departments to recognize this and use a more inter-disciplinary approach to protect areas where two departments responsibilities meet instead of sticking to “their area”. The same incidentally applied to the air-pollution problem in HK, when the EPD was responsible for air pollution, but if you saw a ship bellowing out black smoke and reported it to the EPD, they could not do anything about it because that was the Marine Departments responsibility. However, I think this issue has since been addressed and there are inter-department groups now.

Dead Huizhou Sperm Whale Was Pregnant Female

China Daily reported that an autopsy on the sperm whale that became stranded in Daya Bay, in South China’s Guangdong province, has revealed the whale was pregnant. A crane hoisted the dead sperm whale out of the Harbor last Wednesday. 
A developing 110 kg male fetus, about two meters in length, was recovered.

“It is the first time that an unborn baby has been found inside a stranded sperm whale in the world,” said Tong Shenhan, head of the land and marine life research institute of Xiamen city, who participated in the autopsy.

He believed that the finding would be of significance to the protection and rescue of sperm whale.

On Thursday, a group of about 20 experts from the School of Marine Sciences of Sun Yat-Sen University, Hong Kong Ocean Park and other institutes, conducted the autopsy in Huizhou Fishery Research and Extension Center, in Guangdong, taking samples of skin, fat, muscle and blood from the adult sperm whale.

They unexpectedly found milk in the whale’s breasts and then a placenta 2.6 meters in length.

The fetus will also undergo an autopsy, which is expected to take about one month due to its difficulty.

On Sunday morning, fishery authorities in Shenzhen city received a report of an adult whale trapped in fishing nets in waters off Daya Bay.

After the whale was freed from the nets, authorities and zoologists tried to guide it back into deep sea. However, it continued to swim in shallow waters off Shenzhen and Huizhou cities. It was confirmed to have been stranded near a wharf Tuesday afternoon and died Wednesday.

Tong said that the whale, estimated to be about 5 years old, was healthy and had no visible injuries.

He does not think it was tangled to death by fishing nets but the cause of death will be verified in at least a month.

The animal, weighing 14 tons and stretching 10 meters long, was lifted by a crane from the water in Huizhou port on Wednesday and was transported to Huizhou Fishery Research and Extension Center.

Huizhou has invited experts to conduct research on the whale examining its physiological structure, molecular biology, zoology and pathology, to provide more scientific data and theory for the protection of the endangered sperm whale.

The autopsy on the adult whale will continue over the next two days.

The city also plans to preserve four specimens of the animal’s skin, bone, viscera and placenta.