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Stop feeding whale sharks in Oslob – expert

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WHILE a divers organization said  it was all right – and even beneficial – for fishermen to feed  whale sharks in Oslob town, an environmentalist has called for a stop to the feeding.

Elson Aca, a Filipino whale shark researcher of the World Wildlife Fund for Nature Philippines (WWF-Phils.), made his appeal after he and the crew of the television program, “Born to be Wild,” observed the activity during a  visit to Oslob town in southern Cebu last December.

Aca, WWF-Phils. project manager of the Whale Shark Tracking in Donsol, Sorsogon province,  said he already sent his findings to Oslob Mayor Ronald Guaren.

Aca told Cebu Daily News that the regular  feeding of  whale sharks off the seas of Oslob was altering their behavior.

The animals now associate the presence of the boats in the area with “food”.

“The experiment has shown that they quickly appear when boats start to show up in the area. I have also seen instances that they would approach the boat and nudge them slightly as if begging for food. From begging, a whale shark gets scratches on the head part from hitting the boat and the outriggers,” he said.

He said he noticed the scratches and paint marks on the head of some  whale sharks.

“Some fishermen in other parts of the Philippines may think this begging behavior is an ‘aggressive behavior’ and may cause them to hit the whale sharks or worse , fishermen may have an easier chance to kill them for food,” he said.

Oslob fishermen hand feed the whale sharks baby shrimp  or “uyap” (not krill as earlier reported).

Aca, who is a marine biologist, said feeding the whale sharks teaches them to be “lazy” and may dull their ability  find their own food.

“What if the humans run out of food to give these whale sharks? If they get accustomed to this, they may die from starvation,” he said.

Aca said he was  also concerned about the use of  “uyap” or small shrimps for the feedings.

He said the large volume of dead small shrimps scattered in the area had attracted other fish species  and whale sharks.

A local diver had  told Aca that they had sightings of other fish species, normally found in deep seas, finding its way to the area.

“The implication suggests the shifting of their habitat that may pose a danger to tourists if their presence continues,” he said.

“The increased concentration of “uyap” also increases the presence of small jellyfish that feed on them,” he said.

With the  shallow waters of barangay Tan-awan, the area may also be dangerous for the whale sharks  because the strong ocean current and waves may  push them a shore and get them stranded.

Aca also suggested that tourists in the area should be made to sign a waiver in case of accidents happening such as a tourist being hit by the whale shark’s tail.

He also suggested that boats with propellers should be docked in a designated area because their  presence may harm tourists as well as whale sharks.

“The weakness of the existing rules and the lack of system and protocol have led to the non-compliance to the regulations. Enforcement has been a major problem since stakeholders’ responsibilities have not been laid out in the conduct of tourism. If such practices persist, it won’t be long that Oslob may experience the other faults of other areas offering the same services,” he said.


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Tags: Animals , feeding , Oslob town , Whale shark


  • joeldcndcn

    mr aca of WWF should shut his mouth, WHO GIVE THE AUTHORITY TO ORDER PEOPLE NOT TO FEED THOSE SHARKS, HA? HIS DOLLAR SUPPORTS FROM WWF COMMANDED HIM TO TELL THE PUBLIC, THESE ENVIRONMENTALISTS ARE GETTING DOLLARS FROM THE INTERNATIONAL ENVIRONMENTAL ORG. TO DO WHAT THEY DICTATED, AND THESE FILIPINOS ARE THEMSELVES “SHARKS” OF DOLLARS, OK? shut your mouth!

    • Edgar Borja

      …man leave him alone. He is just doing his job.  So, when would we listen, when all the whale sharks are dead??…. Nature has its own way of taking care of these creatures without the interference of man, and please for the decency of the chat room, avoid using capital letters. If this is an honest and valid observation from an expert in this field, he needs to inform the public.  It is up to us if we listen to it or not… and by the way, last time I checked we live in a democracy, free country? so, as you express your opinion and others listen and respect them…. do the same, man. respect begets respect.. if you can’t earn it, you don’t deserve to have it in return. just my 2 cents.

  • Jeff Clark

    Aca, first of all, you are not a whale shark and you don’t even talk to them, you are just an “Expert” as others may say. How would you know that all your thoughts are true? I would say that if you are living in this very small hometown, you will say the contradict. 



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