According to the Southern Metropolis Daily, a dwarf sperm whale (Kogia simus) was stranded at a beach in Daya Bay on the 23rd of May. The report stated that over a dozen people joined in the rescue effort, using their hands to spread seawater over the cetacean to help moisten its skin before pushing the animal to deeper water. The animal eventually swam away on its own.
Staff at the Daya Bay Fisheries Provincial Nature Reserve Management Office said that dwarf sperm whales are “very rare” in the waters around Daya Bay. The species is known to generally live in deeper water near the continental shelf. The animal was noted to have red blotches and scars indicating disease or parasites.
on the 12 of May 2016 I posted about a dwarf or pygmy sperm whale that washed up dead at Sao Wan Ho (Hong Kong), click here for the blog post and images.
The dead dolphin I posted about yesterday has been reclassified as either a dearf or Pygmy sperm whale by AFCD and Ocean Park Conservation Fund staff. The two-metre-long decomposing whale was found a few metres from the marine police base at Tai Hong Street in Sai Wan Ho.
It is believed it was a male dwarf sperm whale, but a genetic test is needed to confirm its species. The other possibility is its relative, the pygmy sperm whale. Both species are rare in local waters.
Dwarf sperm whales and pygmy sperm whales are extremely similar and usually indistinguishable when spotted at sea. They are widely distributed in tropical and temperate zones of all the world’s oceans.
The first and only recorded local sighting of a dwarf sperm whale was in 1991. There were four previous local discoveries of pygmy sperm whales, with the most recent in 2014.