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Only 27 White Dolphins left in Hong Kong

Only 37 Chinese white dolphins remain in Hong Kong, according to the latest statistics from Hong Kong's Agriculture, Fisheries and Conservation Department.

The species is protected in Hong Kong by the Wild Animals Protection Ordinance (Cap. 170).  Nonetheless, the number of dolphins in Hong Kong has declined as much as 80 percent over the last 15 years, according to conservation groups such as the Hong Kong Dolphin Conservation Society.

Stingrays' bulging eyes makes them more streamlined

Stingrays have a higher swimming efficiency than most other aquatic animals, and many studies regarding high-performance swimming have focused on the hydrodynamic benefits of stingrays swimming styles: “Rajiform” locomotion (undulation) and “mobuliform” locomotion (flapping), which are considered the key to stingrays' high-performance swimming.

Screengrab from New Scientist's video showing the mud ring made by the dolphins in the Caribbean.
Screengrab from New Scientist's video showing the mud ring made by the dolphins in the Caribbean.

Dolphins in Caribbean trap fish with mud nets

In 2019, a pair of bottlenose dolphins in the Caribbean—a mother and her calf—was filmed in the Chetumal-Corozal Bay in northern Belize using mud rings to catch fish.

This method of catching fish was first observed and documented in several parts of Florida by Stefanie Gazda, a researcher from University of Florida in 2005.

In this hunting strategy, one of the dolphins swims down to the seabed and uses their tail to stir up plumes of mud in a ring-shaped configuration. The loosened mud raises and forms a barrier that traps and corrals fish within.

The decreasing availability of treatment facilities willing or able to provide emergency hyperbaric treatment when we need it most increases our risk as divers.
The decreasing availability of treatment facilities willing or able to provide emergency hyperbaric treatment when we need it most increases our risk as divers.

Emergency Hyperbaric Treatment Availability affected by Covid-19 crisis

The standard of care for many diving illnesses is recompression. Treatment delay is one of the most significant risk factors for a negative outcome when treating divers with decompression sickness or arterial gas embolism. Hence, an injured diver must be brought to the most appropriate, available treatment facility with as little delay as possible.

DPG/Wetpixel Masters Underwater Imaging Competition 2021

Announcing the DPG/Wetpixel Masters Underwater Imaging Competition 2021

For 2021, the contest aims to give back to those that have historically supported the Underwater Competition Series. The global pandemic continues to adversely impact dive travel and underwater imaging brands, so it is our turn to help them in their time of crisis.

Warming Atlantic drives right whales towards extinction

During the past decade, the Northwest Atlantic’s Gulf of Maine and western Scotian Shelf have been warming more rapidly than most of the global ocean

As this region has warmed, changes in ocean circulation have driven the critically endangered North Atlantic right whale population from its traditional and protected habitat, exposing the animals to more lethal ship strikes, disastrous commercial fishing entanglements and greatly reduced calving rates.