The Netherlands now join Norway in the effort to save the European eel Anguilla anguilla from extinction.

Yesterday, the Dutch government announced a two-month long ban on eel fishing that will commence on October 1 this year, followed from 2010 with a yearly three-month prohibition from September. In 2012, the new regulation will be reviewed and its effectiveness assessed.

“I realise this is a very big sacrifice for eel fishers, but ultimately it is also in the interests of the industry that eel numbers are allowed to recover,” Agriculture and Environment Minister Gerda Verburg said in a statement.

Before the regulation can be put into action it will however require the approval of the European Commission. The commission has already rejected a Dutch proposal to enlist the aid of eel fishermen to help boost the eel population by releasing 157 tons of mature, caught eel close to the species spawning waters in the Sargasso Sea.

“The (initial) plan would have offered guarantees for the recovery of the eel population,” the professional fishers’ federation Combinatie van Beroepsvissers said in a statement, describing the new measure as “incomprehensible, unreasonable and unacceptable”.

Eel is a delicacy in the Netherlands and roughly one thousand tons of eel are caught in Dutch waters every year. The Dutch government have designated 700,000 Euros (989,800 USD) to aid the estimated 240 small fishing businesses affected by the eel ban.

Amber, a porpoise living at the Harderwijk dolphin centre in the Netherlands, has given birth to a calf this spring, making her the second porpoise ever to give birth in captivity.

Visitors are now gathering to come and see the calf, which has been given the name Kwin.

Picture is GNU

“Mum Amber and her baby, Kwin, are doing fine,” the centre said in a statement on Thursday.

The sex of the calf has not yet been determined and will continue remain unknown for several weeks. Another conundrum concerns the paternity of the calf. According to the dolphin centre, two male porpoises were swimming with Amber at the time of conception and any of them may be Kwin’s father.

The very first porpoise ever to give birth in captivity lives in Denmark where it had a calf in 2007 and the Harderwijk dolphin centre is now enlisting the aid of Danish porpoise keepers to make sure that baby Kwin is properly cared for.

“As we don’t know much about newborn porpoises, a team of Danish minders has come to help us,” the centre says in its statement.

The porpoise is a small ocean-dwelling mammal related to whales and dolphins. There are six recognized species of porpoise and their common ancestor is believed to have diverged from the dolphins roughly 15 million years ago. Porpoises are not as large as dolphins and have stouter bodies with small, rounded heads. Compared to dolphins, wild porpoises bear young more quickly and some species give birth to a calf as often as once a year. However, porpoises do not adapt to life in captivity as well as dolphins do and successful reproduction in zoos is therefore extremely rare.