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

 

Ocean Noise: Sea Mammals Particularly Affected

Fatal Noise In The Oceans: Sea Mammals Particularly Affected

By Marietta Gross, Austria.

Los Angeles - Diesel engines of boats, acoustic locating systems of submarines, and oil boring on the sea-floor are an increasing threat for sea mammals. The US-American nature conversation organisation NRDC (Natural Resources Defense Council) presented a report in Los Angeles, which says that the high noise level of the oceans disturbs disorientates whales and dolphins.

When searching for nourishment, or a partner for pairing, the sea mammals rely on their auditory senses when recognizing endangerments. Ocean noise causes long term behavioural disorders, hearing loss, even death, according to estimations of the Californian nature conservationists.

This report is based on a study that began in 1999. It details results from stranded whales, which were exposed to sonar equipment of submarines. The study found the whales had suffered brain haemorrhages and auditory damage. It also found liver and kidney injuries. "Such symptoms have never before been found in sea mammals," said Michael Jasny, author of the study.

In October 2005, the NRDC sued the US-Marines at a Federal Court in Los Angeles. The environmentalists tried to have the courts instruct the Marines to regulate medium-frequent sonar-equipment. The fishing industry was also prompted to limit the use of acoustic locating systems.

According to the report oil and gas exploration and exploitation damages fishing stocks. Particularly damaging, the report showed, were borings on the ocean-floor. This jeopardized halibut, codfish and other fish species. "It was shown, that some fish species suffer internal ear damage that seriously affects their ability of survival“, said Jasny.

ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

Commerce Commission: Latest Broadband Report Confirms Improved Performance Of Premium Fibre Plans

The latest report from the Commerce Commission’s Measuring Broadband New Zealand programme shows that the performance of Fibre Max plans has improved substantially. This follows a collaboration between the Commission, its independent testing partner, ... More>>

Air New Zealand: Capital Raise Deferred

Air New Zealand has decided to defer its planned capital raise to later in 2021 allowing more time to assess the impacts of recent developments on the airline’s path to recovery. 'We’ve seen some clearing of COVID-19 clouds recently, with ... More>>

Commerce Commission: Cartel Conduct Now Punishable By Up To 7 Years’ Jail Time

Cartel conduct can now be punished with a term of imprisonment of up to 7 years, after the Commerce (Criminalisation of Cartels) Amendment Act 2019 came into effect today. Cartel conduct includes price fixing, market allocation and bid rigging (see ... More>>

Stats NZ: Auckland Population May Hit 2 Million In Early 2030s

Auckland’s population may rise from about 1.7 million currently to 2 million by early next decade, Stats NZ said today. “Auckland will likely have the highest average annual growth of New Zealand’s 16 regions over the next 30 years, from ... More>>


Stats NZ: March Card Spending Rebounds Despite COVID

There was a lift in retail card spending in March following a fall in the lockdown-disrupted February month, Stats NZ said today. Seasonally adjusted retail card spending rose by $53 million (0.9 percent), compared with February 2021. Visit our website to read ... More>>

PwC: Outcome Of Review Into Air New Zealand Gas Turbines Business

Air New Zealand has received the report into its Gas Turbines business from independent external advisers PwC. Air New Zealand Chairman Dame Therese Walsh says the report identified a range of effective controls in the Gas Turbines revenue contracting ... More>>

LPG Association: Renewable LPG Achieves Emissions Budgets With No Need To Ban New LPG Connections

Renewable LPG can supply New Zealand’s LPG needs and achieve the emissions reductions proposed by the Climate Commission without the need to ban new connections, a new study shows. The investigation, by leading consultancy Worley, was prepared for the ... More>>