Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

Scientists Urge End to Tests in Maui’s Dolphin Habitat


World’s Marine Mammal Scientists Urge End to Seismic Tests in Maui’s Dolphin Habitat

In a letter to New Zealand’s Prime Minister, the Society for Marine Mammalogy (SMM) urges the government to immediately halt seismic testing in Maui’s dolphin habitat.

With a membership of some 2,000 scientists from 60 countries, the SMM is the world's largest professional body dedicated to research on marine mammals and the ecosystems that support them.

The SMM’s letter is concerned with seismic surveys off the west coast of New Zealand’s North Island, which is the final refuge of the little known Maui’s dolphin, the smallest and rarest dolphin on earth.

The SMM states that allowing seismic testing in the dolphins’ habitat may harm their hearing and push them into unprotected areas, where they are more exposed to fishing nets.

Fishing is the primary cause of death among the last 55 surviving Maui’s dolphins. Gillnets and trawling kill about nine percent of the population a year – that’s 75 times more than the sustainable limit.

The SMM highlights that a proposed seismic project off California in the US was rejected because of its anticipated harm to porpoises. “It should be noted that the potential seriousness of the impact of the seismic activity was considered excessive for a stock of over 2,000 individuals that has no current conservation concerns,” writes SMM President Professor Helene Marsh. The impact on the 55 remaining Maui’s dolphins could be devastating. “Allowing this seismic testing thus appears inconsistent with the New Zealand Governm­­ent's stated goal of enabling this subspecies to recover.”
 
Seismic testing involves shooting noisy blasts of compressed air towards the ocean floor every 15-20 seconds, around the clock, for weeks or months on end. These airgun signals are intensely loud as they must penetrate deep into the ocean floor to reveal buried pockets of oil and gas. They can harm whales, dolphins, and porpoises, as well as fish.

“Twenty-four cetacean species have shown negative effects to marine noise pollution,” says NABU International’s Head of International Species Conservation, Dr. Barbara Maas. “Noise is a well known stressor, not just for marine mammals. We are therefore also concerned about the sublethal effects of seismic testing. Chronic stress can heighten susceptibility to other threats and slow down population recovery by suppressing reproduction and the immune system. It can even harm unborn dolphins prenatally, all of which Maui’s dolphins can ill afford.”

The SMM also reiterated its earlier conservation message to the New Zealand government. In February the Society advocated an immediate ban of gillnet and trawl fisheries across all Maui’s dolphin habitat to prevent their extinction, “I encourage you to act quickly and decisively to provide the leadership in marine conservation that the world expects of your country,” wrote Prof. Marsh.

“NABU International is delighted that the SMM is speaking up about the urgent need to safeguard this species”, says Dr. Maas. “The scientific evidence is overwhelming. But instead of protecting the dolphins’ against fishing nets, the government is actively encouraging a host of environmentally damaging activities across their home.”

“We are strongly opposed to seismic testing in Maui’s dolphin habitat and support the use of renewable energy. Oil and gas exploration leads to oil and gas exploitation, which involves further dangers to the marine environment through offshore drilling, spills, leaks, and increased fossil fuel emissions.

More information on www.hectorsdolphins.com.

ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

NIWA: Scientists Say Methane Emitted By Humans ‘vastly Underestimated’

NIWA researchers have helped unlock information trapped in ancient air samples from Greenland and Antarctica that shows the amount of methane humans are emitting into the atmosphere from fossil fuels has been vastly underestimated... More>>

ALSO:

SMC Expert Reaction: Record Dry Spells And Effects On Forests

With no rain forecast before Sunday, Auckland is about to break a record for the city's longest dry spell. Niwa says Auckland is likely to hit 40 consecutive days without rain this weekend . The upper North Island is seeing severe meterological ... More>>

ALSO:

Reserve Bank: Official Cash Rate Remains At 1.0 Percent

The Monetary Policy Committee has decided to keep the Official Cash Rate (OCR) at 1.0 percent. Employment is at or slightly above its maximum sustainable level while consumer price inflation is close to the 2 percent mid-point of our target range. ... More>>

ALSO:



Science Media Centre: Novel Coronavirus Detected In China – Expert Reaction

The virus was detected after more than 40 people were hospitalised with pneumonia in Wuhan City, China and the outbreak traced to a large animal and seafood market. The Centers for Disease Control and Prevention reports that person-to-person transmission ... More>>

ALSO:

Science Media Centre: Flooding could release toxic gas – Expert Reaction

A chemical substance known as ouvea premix stored at an old paper mill in Mataura could release toxic ammonia gas if it comes in contact with water.More>>

ALSO: