Peru dolphin deaths unsolved

2012-05-23 17:03
A health ministry worker holds up the carcass of a pelican on the shore of Pimentel beach in Chiclayo, Peru. (Agriculture Ministry, AP)

A health ministry worker holds up the carcass of a pelican on the shore of Pimentel beach in Chiclayo, Peru. (Agriculture Ministry, AP)

Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

Lima - The mass die-off of nearly 900 dolphins and porpoises along Peru's coast remains unsolved, Peru's government marine research agency says.

Tuesday's final report by the Sea Institute ruled out viral and bacterial infections, human intervention, pesticides or heavy metals as causes for the deaths, which were first noticed on 7 February and continued through mid-April. It speculated that biotoxins, algae blooms, or an unknown emerging disease could be to blame.

The Peruvian environmental group Orca, which first alerted the public to the deaths, insists that seismic testing used in oil exploration was likely the cause.

But the Institute said that experts found no evidence any of the deaths were a result of seismic soundings, which involve shooting compressed air at the sea floor: There were no signs of internal haemorrhages or brain lesions that would be compatible with damage from such tests. But it said it did notice damage to some plankton where the soundings were done.

Orca contested those findings in its own report on Tuesday, saying it had independently confirmed haemorrhages and middle-ear infections as well as the presence of air bubbles in internal organs and severe lung damage.

Seismic testing

Several leading Peruvian scientists complained that the government agency was late in gathering samples, making it harder to determine the cause of death because the tissue tested was so badly decomposed.

The Sea institute based its findings on autopsies of just two dead dolphins, which were collected in mid-April, while Orca said it gathered the first of the samples it tested on 12 February.

Seismic testing in the area was conducted between 7 February and 8 April by Houston-based BPZ Energy.

The Institute report said the testing occurred 80km to 130km off shore and that the equipment used was calibrated in those waters between 31 January and 7 February.

It said testing also ruled out morbillivirus, a type of distemper that some government officials had suggested as a likely cause long before kits arrived from the US to check for it.
Read more on:    peru  |  marine life

Join the conversation!

24.com encourages commentary submitted via MyNews24. Contributions of 200 words or more will be considered for publication.

We reserve editorial discretion to decide what will be published.
Read our comments policy for guidelines on contributions.
NEXT ON NEWS24X

linking and moving

2015-04-22 07:36

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
5 comments
Comments have been closed for this article.

Inside News24

 
/News

Book flights

Compare, Book, Fly

Traffic Alerts
There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.




Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.