Saturday, 26 November 2011

Fury as Dutch court prevents young orca's return to the wild

Morgan to be moved to Canary Islands zoo

November 2011: A court in the Netherlands has decided that a rescued young female orca being held at a Dutch dolphinarium is to remain in captivity.

Morgan, who was rescued from the Wadden Sea in June last year, has been kept at Harderwijk dolphinarium but will now be transferred to the LoroParque zoo in the Canary Islands.

WDCS (Whale and Dolphin Conservation Society) says it is disheartened by the decision, which flies in the face of expert advice, who agreed the orca was a potential candidate for release.

Any hope of release has now goneFears now grow for Morgan's health and welfare as she will be introduced into a new captive environment, to orcas who are strangers to her, and to the circus-style shows at LoroParque.

WDCS is a member of the Free Morgan Group which has developed a multi-stage release plan for Morgan in the hope of providing her with the opportunity to return to the wild rather than remain in captivity.

Sadly, it looks as though that hope is now gone. In captivity, orcas suffer a significantly reduced survival rate, low breeding success and stress, which can lead to aggression between themselves and towards trainers, illness and even death.

Orca live less than 9 years in captivity – in the wild it's nearer 50A Free Morgan Group spokesperson said: ‘Despite overwhelming evidence provided by world renowned orca researchers, the best interests of Morgan have not been met. It has been designated that she will be sent to a life of permanent captivity in a barren concrete tank. Realistically this is nothing short of a death sentence for Morgan, as orca in captivity only live an average of 8.5 years, compared to more than 50 years in the wild.

‘It is disgraceful that a country such as the Netherlands, known around the world for their humanitarian and animal welfare compassion, should have allowed this to happen. Clearly, ulterior motivations such as money and entertainment have presided over the welfare interests of Morgan.'

http://www.wildlifeextra.com/go/news/morgan-captivity.html#cr

Two dolphins who died after two-day techno party at marine park 'were fed drugs by ravers'

A pair of dolphins may have died after being fed drugs by ravers after a second animal died.

Police looking into the deaths in Connyland, Lipperswil, Switzerland, initially thought the deafening music from the rave may have killed dolphins Shadow and Chelmers.

But zoo vets are awaiting toxicology test results to see if they were poisoned by narcotics thrown into their enclosure during the rave.

Shadow was found soon after the event but Chelmers died two days later after a 'drawn out and painful' death.

Connyland keeper Nadja Gasser told local media: 'The death was very drawn out and painful. The death went on for over an hour. It was horrendous. I have not been able to sleep since.'

Read more here ...

33 rhino horns and a quantity of ivory seized in Hong Kong

Rhino horns shipped from South AfricaNovember 2011. Hong Kong Customs have seized 33 rhino horns, 758 ivory chopsticks and 127 ivory bracelets that were concealed inside a container shipped to Hong Kong from South Africa. This seizure may provide a unique opportunity to gain insights into the criminal syndicates trafficking wildlife goods between Africa and Asia, according to TRAFFIC.

Track the DNA
TRAFFIC supports the South African Department of Environmental Affairs in requesting the authorities in Hong Kong to send DNA samples of the seized goods to the Veterinary Genetics Laboratory at the University of Pretoria in South Africa for examination. If the horn samples can be matched with records in the rhino DNA database it may be possible to identify the individual animals that were poached for their horns.


“Such an effort could yield major clues about who is behind this consignment,” said Tom Milliken, TRAFFIC’s rhino expert.
Read more here ...

Friday, 25 November 2011

EU proposes outright ban on shark finning

THE EU has finally proposed an outright ban on shark finning, in a move welcomed by European Parliament fisheries committee Vice-President Struan Stevenson MEP, a longstanding campaigner against the practice.



Shark finning is the practice where fishermen cut the valuable fins from a shark and throw the rest of the shark back in the water - often while still alive. The practice has officially been illegal since 2003 but a loophole in the law only requires the weight of the fins caught to be around five percent of the total shark catch. As the average fin-to-shark ratio is around two percent, this effectively means that at least half of the sharks that are finned need not be landed.



Now EU fisheries commissioner Maria Damanaki is proposing a complete ban on 'finning' on all EU vessels around the world.



Mr Stevenson fought off Spanish efforts in 2006 to increase the fin to fish ratio to 6.5 percent, and he has long campaigned for a complete end to the barbaric practice so that every shark caught must be landed, rather than thrown back to die a lingering and agonising death.



Mr Stevenson, Conservative MEP for Scotland, said: “Sharks may have an image problem but they are crucial to the ocean's ecosystem. The practice of shark finning is both detrimental to our marine environment and unacceptably cruel to the shark.



"Sharks that are finned often list around on the ocean bed until they are attacked or they starve to death. Many people may not love sharks but they all see the cruelty in leaving a creature to die a painful and slow death.



"The shark finning trade is extremely lucrative and the punishments are miniscule compared to the rewards. EU law and monitoring need to change so that European fishermen are harshly punished for enacting cruelty and threatening some shark species.



"When these proposals come before MEPs I have no doubt that a few countries will seek to water them down. However, we will push for a rigorous ban.



"We need a ban on finning that enables fishermen to catch sharks in a way that puts conservation and humane treatment before making a quick buck."

Oceana, the international marine conservation organisation, has commended the European Commission on its proposal to amend the EU ban on shark finning.

Ricardo Aguilar, Research Director for Oceana in Europe said: “By opting for a fins-attached approach, the European Commission has heeded the advice of experts worldwide: landing sharks with their fins still naturally attached is the only possible way to guarantee that finning does not occur. The current ‘ban’ has been of little value for shark management and conservation, because loopholes make it impossible to even detect whether finning occurs. Furthermore, if all sharks must be landed with their fins attached, it will be much easier to identify the species caught, and therefore, to gather critical data about the status of shark populations.”

“A stronger ban on shark finning will bring significant benefits for shark fisheries management and conservation, not only in Europe, but in all of the oceans where European vessels are catching sharks,” added Dr. Allison Perry, marine wildlife scientist with Oceana in Europe. “We trust that the European Parliament and Council will support the Commission’s proposal, and that this positive step will be followed by action on other important measures that Europe has committed to under its Plan of Action for the Conservation and Management of Sharks.”

The EU includes some of the world’s major shark fishing nations – Spain, France, Portugal, and the UK. The largest EU shark fisheries occur on the high seas, where Spanish and Portuguese pelagic longliners that historically targeted mainly tuna and swordfish now increasingly catch sharks, particularly oceanic species such as blue sharks (Prionace glauca) and shortfin makos (Isurus oxyrinchus). More than half of large oceanic shark species are currently considered threatened.

http://www.fishnewseu.com/latest-news/scottish/7116-eu-proposes-outright-ban-on-shark-finning.html

Pregnancy is a drag for bottlenose dolphins

Lumbering around during the final weeks before delivery is tough for any pregnant mum. Most females adjust their movements to compensate for the extreme physical changes that accompany the later stages of pregnancy. However, no one had been able to find a distinct gait change – such as a change in stride length or frequency – associated with the latter stages of pregnancy.

Intrigued by the ways that newborn dolphins learn to swim after birth, Shawn Noren from the Institute of Marine Science, University of California Santa Cruz, realised that she had the perfect opportunity to find out how affects female dolphins. Joining a pod of dolphins at Dolphin Quest, Hawaii, just before two of the females gave birth, Noren analysed the impact of pregnancy on the animals' streamlined shape and mobility. She publishes her discovery that pregnant dolphins are significantly disadvantaged by their burden and adopt a new swimming style (gait) in The Journal of Experimental Biology.

'The pregnant females had huge protrusions where the fetus was sitting towards the back end of the body', says Noren, who donned SCUBA gear and spent a large portion of the final fortnight of the dolphins' pregnancies filming under water as they swam parallel to her camera between their trainers. Noren also filmed the dolphin mothers immediately after their calves were born and at regular intervals until the calves were 2 years old. Comparing the footage before and after delivery, Noren realised that pregnant females were slower. Their top speed was restricted to 3.54 m/s, whereas they were able to swim at much higher speeds after giving birth. 'Two to three metres per second is a comfortable speed for most bottlenose dolphins,' says Noren, 'but these pregnant animals did not feel comfortable going beyond that.'

She also measured the animals' girth and calculated their frontal surface area, and realised that the pregnancy had a colossal impact, increasing their frontal surface area by an enormous 51%. And when Noren measured the drag experienced by the animals as they glided through the water, she discovered that it doubled when the mothers were close to delivery.

The pregnant dolphins also had another problem: their increased fat stores in preparation for lactation had also increased their buoyancy. 'The buoyancy issue is going to be problematic when you are going down on a dive to capture prey and they are going to need extra energy to overcome that buoyant force', says Noren. So, pregnancy had a dramatic effect on the dolphin's hydrodynamics, but had it changed their swimming style? Did the pregnant dolphins move with a different gait?

Manually digitising the position of the animals' flukes (tail fins) as they beat up and down, Noren discovered that the pregnant females were unable to sweep their flukes as far as they could after birth. They had reduced the amplitude of their tail beat by 13% and they compensated for the reduced propulsion by beating their flukes faster. The pregnant dolphins had changed gait.

Having found how pregnancy affects soon-to-be dolphin mothers, Noren outlines the additional risks that the females face. Unable to outrun predators, heavily pregnant are more vulnerable to attack and they may not be able to keep up with the pod if pursued by fishing vessels. Explaining that tuna are still fished using massive nets in the eastern tropical Pacific, Noren says, 'Here is a fast speed event, so it is possible the near term pregnant females are being left behind in the chase. They are reliant on a large pod for protection and cooperative feeding and once the animal is separated it would be hard for it to find the pod again.'
More information: Noren, S. R., Redfern, J. V. and Edwards, E. F. (2011). Pregnancy is a drag: hydrodynamics, kinematics and performance in pre- and post-parturition bottlenose dolphins (Tursiops truncatus). J. Exp. Biol. 214, 4149-4157.

http://www.physorg.com/news/2011-11-pregnancy-bottlenose-dolphins.html
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