Our marine friends
Protecting whales and dolphins:
by Nilma DOLE
It isn't everyday you get to meet a dolphin and when you do, it can
be one of your most memorable experiences in life. More than just
catching the sight of a dolphin, just witnessing their behaviour, their
graceful dances done in perfect harmony, their beauty and the friendly
greeting sounds they make, just make it wonderful to be in their
company. The scientific term for dolphins is 'cetaceans' and there are
about 20 species which include certain whales. According to researchers,
Sri Lanka's waters are known to be rich in cetacean species but
dedicated cetacean surveys around the island have been lacking due to
limited resources as Sri Lanka is a developing country.
It is this situation that increased the number of private tour
operators to offer cheap and affordable whale-watching and dolphin
sighting excursions with absolutely no regulations in force whatsoever.
Sad to say, after reading this article, many would travel even to the
seven seas to try to catch a glimpse of our dolphin friends but they
should do it responsibly and within the system.
 Speaking to the Sunday Observer, Arjan Rajasuriya, a reseacher from
the National Aquatic Resources Research and Development Agency (NARA)
said, "A dolphin is a mammal that needs to come up to the surface to
breathe and if there are boats chasing after it, they will no doubt be
stressed and intimidated". He goes on to say, "It is unfortunate that
many who profit from these ventures are quick to shun the existing
regulations and last year, NARA had in fact submitted a proposal to all
relevant authorities emphasising the urgency to enforce the law".
Naturalist and wildlife photographer Gehan De Silva Wijeyeratne, CEO
of Jetwing Ecoholidays who had been on several whale-watching
expeditions commented: "Watching dolphins should be done in a
sustainable manner and I would advise people to be at a safe distance of
100 metres in the boat". He said that if dolphins 'bow ride' or swim
together with your boat, do not increase the speed but carry on with the
momentum until they swim away. "If a whale or a dolphin deliberately
approaches you, turn off the engine and allow the boat to drift until it
becomes disinterested". He advises people not to ride too close to the
dolphins and preferably use binoculars or magnifiable cameras.
One of the foremost experts on marine mammals especially with regard
to dolphins, whales and dugongs (sea cows), scientific advisor Anouk D.
Ilangakoon has studied on cetaceans off Sri Lanka since 1985 doing
international projects as well. "I studied small cetacean species
diversity off the west coast of Sri Lanka for my M.Sc. research project
and have also carried out large whale sighting surveys off Sri Lanka."
Additionally, Anouk has worked on cetacean strandings and bycatch issues
in Sri Lanka where she authored the first guide book on whales and
dolphins off Sri Lanka which was published in 2002.
In her research project done with the Whale and Dolphin Conservation
Society on 'Cetacean conservation in Sri Lanka', she underscored "It is
well documented that small cetaceans regularly form a part of the
accidental fisheries bycatch in Southern Sri Lanka." She recently
revealed in her document titled 'Unregulated whale and dolphin watching
in Southern Sri Lanka' that whale-watching tours are beginning to pose
problems as there are no regulatory measures in place to ensure the
safety of whales.
 Mirissa Water Sports, a community based organization that has already
expressed its interest to expand their present water sport activities to
embrace ecotourism has decided to include proper whale-watching
excursions.
We went to see the dolphins on an early Thursday morning on a boat
operated by the Ceylon Fisheries Harbours Corporation in collaboration
with Walkers Tours. Ours was a 12 passenger crew with a lifeguard and
the boat rider, who were experienced and knowledgeable. We were asked to
wear our life jackets before we embarked on our journey and sped about
an hour into the middle of the deep blue waters.
The standard procedure was to ride close to the mammal to observe it
but at a reasonable distance not to interfere with its movements. We
happened to notice another long boat with a noisy engine where tourists
literally sat with their legs hanging off the boat with no safety
precautions. On the horizon, we could also see a fleet of other boats
closing in. This proves that the absence of a regulatory framework
wreaks havoc to marine mammals which will ultimately result in their
total disappearance.
The Chairman of the Ceylon Fishery Harbours Corporation Asanga
Abeyagoonasekara concluded: "Education and awareness is the key and we
need to quickly formulate a plan to regulate whale and dolphin watching
otherwise we will lose them forever".
Dolphin
Species of the 'Ziphiidae' family
1. Cuvier's Beaked Whale (Ziphius
cavirostris)
2. Ginkgo-toothed Beaked Whale (Mesoplodon ginkgodens)3.
Southern Bottlenose Whale (Hyperoodon planifrons)
4. Killer Whale (Orcinus orca)
5. False Killer Whale (Pseudorca crassidens)
6. Pygmy Killer Whale (Feresa attenuata)
7. Melon-headed Whale (Peponocephala electra)
8. Short-finned Pilot Whale (Globicephala macrorhyncus)
9. Risso's Dolphin (Grampus griseus)
10. Rough-toothed Dolphin (Steno bredanensis) 11.
Indo-Pacific Humpback Dolphin (Sousa chinensis)
12. Bottlenose Dolphin (Tursiops truncatus)
13. Common Dolphin (Delphinus delphis)
14. Fraser's Dolphin (Lagenodelphis hosei)
15. Long-snouted Spinner Dolphin (Stenella longirostris)
16. Pantropical Spotted Dolphin (Stenella attenuata)
17. Striped Dolphin (Stenella coeruleoalba) (Source:
Ilangakoon, A.
(2002).
Whales & Dolphins Sri Lanka).
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