‘Seal rescue disrupts research’
This year, the seal rescue at Pieterburen began research in collaboration with Ton Groothuis, professor of behavioural biology at the RUG, in order to learn more about the seal situation in the Dollard area. The research follows on from the pilot that the sanctuary carried out last year in collaboration with the University of Utrecht.
The pilot found that a pup that is alone and crying does not have to be brought directly to the sanctuary. ‘Seal pups have been proven to be less vulnerable than they seem’, says Groothuis. ‘Pups are suckled by multiple female seals, even if they have been sitting on their own for a while. The question is whether bringing in the pups causes unnecessary separation of the mother and her young or not, and the consequences of doing so, such as missing the socialisation period among seals, after it has been released back into the wild are unclear.’
Groothuis is worried that the new seal rescue in Termunten will be overly enthusiastic about bringing in every pup that is found alone. ‘Taking the seals away from the research area makes our research impossible to do.’
‘It is more peaceful in the Dollard area for the young than elsewhere’
This is why the professor filed a complaint with the state secretary of nature against the seal rescue Eemsdelta Foundation, the official name of the sanctuary in Termunten. The complaint was signed by the RUG board, and the seal rescue is furious.
‘We feel that the RUG is making false allegations against us’, says Jeroen Boer, president of the foundation. The complaint made by Groothuis claims that bringing in the seal pups causes them to suffer, but that is twisting the facts, says Boer. He concedes that the situation in the Dollard certainly needs to be investigated, but leaving the animals to their fate is crossing the line. ‘If an animal is in trouble, we can see that.’
Boer draws support from researchers other than Groothuis. ‘We base our protocols on 45 years of experience and a recently graduated PhD researcher’, he states, by which he means Nyke Osinga’s dissertation from the University of Leiden. She researched the pups for seven years, and her results were completely different: seal mothers would never leave their young alone.
As such, the president of the new seal rescue began to worry about the policy of the other sanctuary at Pieterburen. According to Boer, his ‘competitor’ feels that research is more important than the wellbeing of the animals.
From 30 to 3
Pieterburen does not agree with the criticism. The seal rescue did in fact adapt its policy in connection with the pilot study in 2015. The rescue formerly took in around 30 pups per year, but last year, the number of pups brought in was three. But there were justified reasons for doing so, says biologist Sander van Dijk of the seal sanctuary.
‘In the Dollard area, the sandbanks remain dry even when the water is high, and they are also close to the road’, he says. Young seals can safely rest on the sandbanks while the mother catches fish, whereas they are forced to swim in other areas. ‘This is why so many seals come to the Dollard during the birthing season, which is two weeks long. In the Dollard, it is more peaceful for the young than elsewhere.’
Boer feels that it would be premature to adjust the policy after a one year pilot study. ‘Our situation in the Dollard is unique with a lot of disruption, and we want to put the animal first.’