By Chenelle Fernando
Last week, we stumbled across an incident that made us truly question humanity and the entrenchment of its so-called values that seemed to have unfathomably gone astray.
Two individuals were arrested for selling turtle meat in Arachchikattuwa in the Puttalam District. The incident instantaneously prompted us to inquire into and enlighten ourselves of these gentle creatures that both swim our seas and hover our lands.
One could only dwell on the joy of how lucky we got as human beings – to be able to communicate, to have fundamental rights, accompanied with rules and regulations that rise to protect us whenever the need crops up. To state the obvious, not only do human beings tend to harm their own kind, but quite alarmingly harm those creatures that weren’t born with the endowments mankind is blessed with.
One can’t stress enough on how important it is to conserve and preserve our territorial wildlife, but what of marine life? Our focus this week is on turtles, and as per independent marine researcher and author Howard Martenstyn, sea turtles play key roles in supporting ecosystems in the ocean as well as on land.
“Sea turtles have been found to support healthy reefs by controlling sponges which would otherwise out-compete reef-building corals for space, whilst dune and beach vegetation are nourished and grow healthier.” Healthy vegetation with strong root systems prevents the subsequent erosion of the beach.
To begin with, turtles are reptiles and as per the natural process, once they hatch out of their eggs, they immediately crawl into open waters, which is where most part of their lives is spent. They happen to be air breathers – meaning they’d only spend several minutes under water. Wildlife and Nature Protection Society immediate Past Director Rukshan Jayewardene noted that female turtles would invariably return to the same stretch of beach in which they were born for breeding purposes. The mortality rates of these hatchlings are placed at a striking high of 90%.
Whilst the species boasts a lifespan ranging from 80-100 years, Jayawardena noted how these turtles spending a large portion of their time at sea might prevent researchers from instigating long-term research on them. “No one really keeps these turtles in captive situations like aquariums, so even if they die, there’s no way of finding out what their longevity is.”
This remarkable trait of longevity is likely to be intricately linked with that of its nutrition. Jayewardene included that whilst they reflect omnivore-like traits, by consuming jellyfish, its nutrition consists of vegetation for the most part. “They go to the bottom of the ocean and this is where they mostly feed on vegetation such as seaweed.”
Following the sad event of selling turtle meat, we were quick to understand that not only are these species hitched to the risks associated with the ever-growing plastic menace, but are also forced to succumb to travesties of such nature.
“They are protected species. But there are people who catch them and it’s a very small sector of society that does so. Nevertheless, it is the Wildlife Department that needs to prosecute these culprits together with the Police.
They too are required to be educated on the subject matter,” denoted Jayewardene, whilst commenting on the matter.
Whether they’re endangered or not is dependent on the type of species. Some species are endangered whereas some of them aren’t. We were told that numbers are much lower than what they used to be. This could be attributed to habitat loss occasioned from beaches being converted into tourist spots.
“Unfortunately, safe places for turtles to breed are lessening by the day” added Jayawardene. This prevents them from returning to the beach they were born in, despite them being programmed to do so.
“A modern threat faced by these species are the plastic bags in the water that look like jellyfish,” said Jayewardene. He further denoted that turtle deaths occasioned due to the consumption of plastic/polythene are strikingly high.
Additionally, he asserted that whilst there are certain organisations that work towards the conservation of turtles, there are incidents where even this has been abused for the furtherance of ulterior motives. For instance, when turtles hatch from their nesting grounds, individuals retain the new born hatchlings, so that tourists can come and witness them.
“New born turtles consist of amniotic sac at the lower part of their shells. This acts as an energy package for the newborn turtles to swim out to the sea, over the reef, and then into open waters. So the problem with retaining these turtles in tanks is that they would swim around,” he explained.
Jayewardene also said that the issue with this is that the turtles usually exhaust this energy by the time they’re released, thereby granting a negative impact on its overall performance.
As the Flora and Fauna Protection Ordinance 1938 which was amended in 1972 goes, it is an offence to capture, kill, injure or possess sea turtles or their eggs.
This article on the 'Gentle creatures that walk our lands and swim our seas' appeared in the the Morning newspaper on 20 January 2019.
Let me help you find more information on sea turtles that will help you understand their life cycle, threats, why we should protect this species and its nesting sites around Sri Lanka's coast.