Thousands of Greenland sharks get caught and die in nest off Greenland each year, but their meat is toxic to humans and the carcasses are therefore thrown back into the sea.
Researchers at the Arctic Technology Centre (ARTEK) in Sisimiut in western Greenland now hope to find a way of turning the oily flesh of these enormous fishes into biogas for Eskimos.
The Greenland shark can reach a length of seven meters (23 feet) and weigh up to a tonne.
“I think this is an alternative where we can use the thousands of tonnes of leftovers of products from the sea,
including those of the numerous sharks,” says Marianne Willemoes Joergensen of ARTEK’s branch at the Technical University of Denmark.
Joergensen, who is in charge of a pilot project based in the Uummannaq village in northwestern Greenland, says a mixture of shark meat, macro-algae and household wastewater could serve as biomass for biofuel production.
“Biofuel is the best solution for this kind of organic waste, which can be used to produce electricity and heating with a carbon neutral method,” she explains.
According to estimates, biofuel from the sea could supply Uummannaq’s 2,450 inhabitants with 13 percent of their energy consumption.
But the biofuel project is not uncontroversial.
“[It] is not a good idea, not at all“, says Danish WWF ocean mammal specialist Anne-Marie Bjerg who wants to see other sustainable energy projects undertaken instead.
“We know very little about the Greenland shark, which lives in a limited geographic zone, the Arctic,” she said. “We are opposed to the commercial use of marine mammals*, such as the Greenland shark, which is not universal and whose population size is unknown.“
AC Comment:
*The Greenland shark is not a mammal since it does not feed its young milk. Mammals are animals whose females are characterized by the possession of mammary glands. The Greenland shark does however give birth to live young. Just like many other sharks, it is an ovoviviparous species. Much remains unknown of the Greenland shark’s reproduction and life cycle.
According to the Whale and Dolphin Conservation Society (WDCS), Greenland intends to ask permission to hunt a quota of 50 humpbacks over five years. The request will be put forward at an international key meeting on Tuesday where the 40 year long moratorium on whaling will be discussed.
“The WDCS urges member states and the Czech presidency [of the European Union] not to put at risk the EU’s reputation for commitment to the conservation of the world’s whales,” WDCS spokesman Nicolas Entrup said in Lisbon, Portugal.
On Tuesday, the annual meeting of the International Whaling Commission (IWC) will commence on Madeira, a Portuguese island.
Humpback whale
The humpback whale (Megaptera novaeangliae) is a baleen whale found in all the major oceans (not including the Mediterranean and the Baltic Sea) in a wide band running from the Antarctic ice edge to 65° N latitude. It is known for its knobbly head and its habit of frequently breaching and slapping the water; a practise which has made it especially popular among whale watchers. The purpose of the famous humpback whale song produced by the males remains unclear, but it is believed to play a role in reproduction. This whale song lasts for 10-20 minutes and is repeated for hours at a time.
The introduction of the explosive harpoon in the late 1800s and increasingly better ships made it possible for whalers to drastically accelerate their take, which soon led to a sharp decline in most whale populations, including the humpback whale. An estimated number of 200,000 humpbacks where taken during the 20th century, reducing the global population by over 90% and bringing the North Atlantic population down to a mere 700 individuals. When the ban on commercial humpback whaling was introduced by the IWC in 1966, the global population consisted of an estimated 5000 whales.
Today, the Humpback has made a promising comeback. In 2008, it was moved from the “Vulnerable” section on the IUCN Red List of Threatened Species and has since then been listed as “Least Concern”, although two subpopulations remain endangered.
According to the U.S. National Oceanic and Atmospheric Administration (NOAA), over 50,000 humpbacks can be found in the Southern Hemisphere, while the North Pacific Ocean is home to 18,000-20,000 individuals and the North Atlantic population comprises about 12,000 specimens.
The main threats to the humpback whales are today entanglement in fishing equipment, ship collisions, and noise pollution.
After acknowledging the failure of current fishery policies within the union, EU officials are now considering banning the practice of discarding fish at sea.
“What’s the point of setting a quota if fishermen aren’t accountable for the fish they actually catch?” says Mogens Schou, a Danish fishery official.
The EU’s quotas limit the size of the annual catch that countries and their fleets can sell on their return to harbour, but instead of protecting remaining fishing populations from depletion, the system is making fishermen dump lower-value fish at sea to maximize profit. According to officials in the European Commission’s fisheries office, most of these fishes do not survive.
“To stay under their quotas, and make more money, fishermen discard half of what they catch,” says Schou, “They ‘high-grade’ – in other words, only keep the most profitable fish.”
Last month, an EU report was released highlighting the failure of current EU fishing regulations by showing that 88% of fish species in EU waters are being fished out faster than they can reproduce. In response to the report, fishery ministers from the 27 EU nations are currently discussing how to protect the remaining fish stocks from complete eradication.
As a part of these talks, Denmark has proposed an amended quota system where fishermen and their countries are held accountable for the amount of fish caught rather than the amount returned to port. To make it harder for fishing fleets to cheat, Denmark is also proposing that fishermen voluntarily equip their boats with on-board cameras. In exchange, the fishermen would get bigger quotas.
Denmark has already designed a surveillance kit consisting of four cameras, a GPS (Global Positioning System) device, and sensors that notice when fish is being hauled or dumped. The Danish kits are currently being used on six fishing boats with Danish officials monitoring the footage.
Danish fisherman Per Nielsen installed the kit on his trawler Kingfisher in September and believes it to be a good investment. The kit cost roughly 10,000 USD, but Nielsen was compensated by being allowed to catch several extra tens of thousands of dollars worth of cod.
As of now, EU fishermen throw overboard an estimated 50% of the fish they catch and did for instance dump 38% of the 24,000 tons of cod they caught last year, according to the International Council for the Exploration of the Sea.
As reported earlier this week, Danish television presenter Lisbeth Koelster was put on trial after deliberately pouring diluted anti-dandruff shampoo into a fish tank housing 12 guppies. The aim of the “experiment” was to demonstrate the level of toxic material in the shampoo. After being subjected to the shampoo, all but one of the fishes died and a Danish veterinarian who watched the show decided to press charges.
Koelster had pleaded not guilty, but the Glostrup court found her guilty of violating animal protection laws. Judge Thomas Lohse said Koelster had “deliberately committed an act of cruelty to animals” and violated animal protection laws. She was however not found to have violated any laws regarding experimentation on animals.
Koelster will not have to pay any fine since the event took place in 2004; four and a half year from now. The judge found this amount of time unreasonable and therefore decided not to fine her.
To demonstrate the level of toxic material in a brand of anti-dandruff shampoo, a Danish television presenter poured diluted shampoo into a fish tank on a 2004 episode of the consumer affairs show she fronted.
Lisbeth Kloester, a television presenter on the Danish public channel DV1, is now on trial for causing unnecessary suffering to animals.
After being subjected to the shampoo, all but one of 12 guppy fish housed in the aquarium died within four days and a veterinary practitioner watching the show decided to press charges. Under Danish law, causing unnecessary suffering to animals is an offence and Kloester could face a fine if convicted.
Kloester has pleaded not guilty and her lawyer Tuge Tried said he expected his client to be acquitted at the trial on Tuesday.
“The allegations are this experiment caused the fish’s fear and suffering…but expert witnesses told the court on May 12 that this was not the case,” he said. “Fish are killed by suffocation in industrial fisheries and we throw live lobsters into boiling water, but we don’t press charges against fisherman or restaurant owners.”
As reported earlier , the European Union has decided to ban the import of seal skin and other seal products hailing from commercial seal hunting.
This has upset Canadian seal hunters since Italy and Denmark, both members of the European Union, are two major importers of seal products. Italy imports most of their seal skins from Russia, but Denmark has always been an important trade partner for North American seal hunters, partly due to Denmark’s traditional connection to Greenland.
According to a statement from Canadian Trade Minister Stockwell Day, the federal government is now getting ready to move in with an appeal against the ban, which they see as a clear breach of WTO regulation.
“We’ll go to the WTO because it’s clear in WTO regulations that if one country wants to ban the products of another, it has to have clear scientific, medically acceptable reasons for doing so, and this EU ban is not based on hard science,” Day said.
The Canadin government believes that Canada deserves an exemption from the import ban since it follows internationally accepted guidelines regarding seal hunting, e.g. by prohibiting the clubbing of baby seals while they still have their white coats.
Day claims that the European ban is based on “people’s feelings” rather than hard facts, and says that the trade action will proceed unless the European Union Parliament exempts Canada and other countries that he said practise humane and sustainable seal hunting. According to Day, seal hunt proponents erroneously portray seal hunting as it was 40 years ago.
The suggested seal import ban must still be approved by individual European governments before becoming law but can, if passed, come into effect as early as next year. If the is approved, it will cause an annual 2 million USD loss for the Canadian industry.
Canadian Fisheries Minister Gail Shea agrees supports the government’s planned trade action.
“When you live in small coastal communities, sometimes there’s not many opportunities to make some additional money,” she said. “We have a number of families who make up to 35% of their annual income from the seal hunt. So yes, I do think it’s very important.”
As reported earlier, the proposed European seal import ban will contain some exemptions and seal products resulting from hunts traditionally conducted by Inuit and other indigenous communities can still be imported to and marketed in European Union countries even if the ban is approved. Products that result from hunting conducted for the purpose of sustainable management of marine resources on a non-profit basis will also be allowed, and individual travellers will be permitted to bring seal products to the European Union as long as the import is of an occasional nature and consists exclusively of goods for the personal use of the traveller.
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.