Rescued rare dolphin released back to sea

Xinhua reported on the 22nd of July (2017) that a rare rough-toothed dolphin (Steno bredanensis), named Jiangjiang, was released back to sea earlier this week, two months after it beached itself and was rescued in Guangdong Province.


The 2.2-meter male dolphin was found stranded on the coast of Heisha Bay near the city of Jiangmen (200 km west of Hong Kong) on May 3. It was suffering breathing troubles, according to Yang Naicai, a vet who joined the rescue operation.


Rescuers checked the dolphin’s breathing, gave an injection of antibiotics, and provided food and medicine to help it regain its strength.

The animal was housed in a pool designated for dolphin rescue at the Pearl River Estuary Chinese White Dolphin National Nature Reserve.


“We maintained round the clock monitoring, hoping for a miracle,” said Chen Hailiang, from the reserve.

The dolphin, which weighs around 100 kg, was released back to the sea on Thursday as its physical condition had returned to normal.

Although the rough-toothed dolphin, a national second class protected species, can be found in deep tropical, subtropical and temperate waters around the world, it is a rare visitor to Chinese coastal waters.

In 2014, a rough-toothed dolphin stranded in Guangdong died despite rescue efforts.

Dead Chinese White Dolphin Found in Macau

A Chinese white dolphin (Sousa chinensis) was found dead on the morning of the 19th of July (2017) floating in the sea near Cheoc Van beach in Coloane.

Local animal rights group Anima (Macau) was alerted to the presence of the deceased animal by a concerned citizen. Anima president, Albano Martins, speculated that the dolphin may have collided with a maritime vessel in the Pearl River Delta estuary.

The Anima president also said that Macau’s Marine and Water Bureau has retrieved the deceased animal and is arranging for the body to be disposed.

Sightings of dead dolphins off the coast of Macau are a relatively rare occurrence, but several have been documented in recent years.

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

Appreciating Hong Kong's Rich Marine Life

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