Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


Testing Confirms Disappearance Of Blue-Green Algae

MEDIA RELEASE


January 11 2013

Testing Confirms Disappearance Of Blue-Green Algae

A potentially toxic blue-green algae which emerged in some Otago waterways in December has dissipated.

The Otago Regional Council (ORC) had issued warnings to the public to keep their distance from Lake Waihola, the Tomahawk lagoon, and the Taieri River at Henley because of the presence of the algae.

When present, the blue-green algae can produce toxins which can cause illness, irritation of the skin, eyes, nose, and mouth in people.

ORC manager resource science Matt Hickey said water sampling at the three locations this week confirmed that the blue-green algae had dissipated, reducing the potential risk to people and animals of illness through contact with the algae.

Mr Hickey said that while this was good news for people frequenting Lake Waihola, the Tomahawk lagoon, and the Taieri River at Henley, they still needed to be alert to the possible presence of another kind of potentially toxic algae known as Phormidium.

Unlike the blue green algae which has caused problems in Lake Waihola and Tomahawk lagoon. Phormidium is found in rivers and streams, and typically forms a thick brown-black slimy algae mat found on large rocks, stones, and cobbles.

If the mats detach, they may float downstream to become caught up in other debris such as sticks. When the Phormidium mats die and dry out, they become light brown or white. Either fresh or dried, the algae can be highly toxic and potentially harm animals and people.

Dogs are particularly susceptible to poisoning from both mat-forming and free-floating toxic algae.

“Many dogs enjoy being in the water and can eat these algae intentionally or by accident, which can have tragic results,” Mr Hickey said.

Symptoms of poisoning in animals exposed to the type of toxins present in Phormidium include lethargy, muscle tremors, fast breathing, twitching, paralysis, and convulsions. In extreme cases, death can occur within 30 minutes after signs first appear.

Where humans become ill or are suspected of being ill after swallowing water containing algal bloom, medical advice should be sought immediately. Likewise, if animals become sick, a veterinarian should be contacted.


ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

PARLIAMENT TODAY:

"Gutted" Safety Bill: Time To Listen To Workplace Victims’ Families

Labour has listened to the families of whose loved ones have been killed at work and calls on other political parties to back its proposals to make workplaces safer and prevent unnecessary deaths on the job. More>>

ALSO:

Regulators: Govt To ‘Crowd-Source’ Regulatory Advice

A wide-ranging set of reforms is to be implemented to shake up the way New Zealand government agencies develop, write and implement regulations. More>>

ALSO:

Board Appointments: Some Minister Appoint Less The 3 In 10 Women

“It’s 2015 not 1915: Ministers who appoint less than 3 in 10 women to their boards must do better, they have no excuse but to do better,” said Dr Blue. More>>

Gordon Campbell: On The 1990s Retro Proposals For Our Health System

As we learned yesterday, the reviews propose that the democratically elected representation on DHBs should be reduced, such that community wishes will be able to be over-ridden by political appointees. In today’s revelations, the reviews also propose a return to the destructive competitive health model of the 1990s. More>>

ALSO:

Post-Cab Press Conference: Foreign Buyers Register, TPP And Serco

At a press conference today in Wellington, John Key discussed the foreign buyers register as well as the TPP and Serco. Key was questioned on whether a stamp tax might be used as a tool to deal with foreign buyers. More>>

ALSO:

Lyndon Hood Satire: Serco To Outsource Prison To Public Sector

In response to high-profile failings, multinational omnicorporation Serco will introduce public management in its prison system. Serco's New Zealand manager, speaking on condition of anonymity, has announced plans for managers from the Department of Corrections to run the Mt Eden Correctional Facility. More>>

National Party Conference: Plans To Nudge Immigrants Towards Regions

The Government will introduce a package of immigration measures aimed at improving the spread of workers, skills and investment across New Zealand, Immigration Minister Michael Woodhouse says. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news