Sri Lanka: The grim and the good
Dried gill-plates on a Chinese medicine market stall.
One of the biggest seizures of gill-plates from vulnerable manta rays ever documented took place at Hong Kong’s international airport on 23 October – but the Customs officials who confiscated them could yet be forced to back down.
They seized around 330kg of the plates with an estimated market value of HK $900,000 (£88,000) after finding them in a consignment from Sri Lanka labelled “dried fish gills”. But although mantas are supposedly under international protection, the authorities might have to allow the shipment to continue on its way, according to UK charity the Manta Trust.
The trade in manta gill-plates for use in Asian “medicine” is relatively new but is already devastating populations, says the trust. The rays reproduce infrequently, have only one pup per pregnancy and overall population sizes are relatively small, so it doesn’t take much for overfishing to occur.
Under CITES legislation, nations are required to prove that any international trade in manta gill-plates will not affect survival of the species. But according to Manta Trust CEO Dr Guy Stevens: “It is essentially an impossibility for any country to prove that commercial trade in manta body parts is sustainable.
Far from protecting mantas, Sri Lanka supports one of the world’s largest ray fisheries, with an estimated 600-1000 being landed annually – a rate the Manta Trust describes as “likely unsustainable”.
8 November 2020
Nations such as Sri Lanka “must take responsibility to protect their own national biodiversity before it is too late”, it says, adding that if the country continues to fail in safeguarding its own marine ecosystems, it will not only have devastating consequences for species including manta rays but will rob its own people of sustainable livelihoods.
On a more positive environmental note, Sri Lanka’s Navy, Coastguard and volunteers recently rescued 120 short-finned pilot whales stranded in the country’s biggest-ever mass beaching.
The incident occurred on the afternoon of 2 November at Panadura near Colombo on the south-west coast, but by dawn the next morning the impromptu task force had managed to pull all the whales back into the sea, with the help of small inshore naval patrol craft.
Only two pilot whales were known to have died as a result of injuries sustained during the stranding, the cause of which is unknown.