News Video | Policy | GPs | Hospitals | Medical | Mental Health | Welfare | Search

 


Potentially toxic algae found in Whakatane River

Potentially toxic algae found in Whakatane River around Ruatoki Bridge

Routine monitoring by the Bay of Plenty Regional Council has identified potentially toxic algal mats covering the bed of the Whakatane River, near Ruatoki Bridge in the Eastern Bay of Plenty. The local council has placed warning signs at the area most affected.

People are advised to avoid contact with this section of the Whakatane River and be on the lookout for algal mats elsewhere in the river.

Toxic algae (cyanobacteria) often multiply to excessive levels during periods of warm, dry, sunny weather when rivers levels are low. In rivers they can form extensive black or brownish slime-like mats that cling to rocks and logs. Significant clumps sometimes break off and float free, eventually collecting on vegetation at the water's edge.

“The algae that form the mats can release toxins that are potentially harmful to people and animals,” says Dr Jim Miller, Medical Officer of Health. Cyanobacteria toxins can trigger asthma and hayfever attacks in susceptible individuals, as well as causing skin rashes, stomach upsets, and even neurological effects such as tingling round the mouth, headaches, general breathing difficulties and visual problems.

People are advised not to paddle, wade, swim, or participate in any recreational activity that might involve significant contact with the cyanobacteria mats or swallowing of raw river water. The health warning also includes people keeping their pets and livestock out of the river. “Highest risk areas tend to be shallow river margins where infants and dogs are most likely to come in contact with the mats,” says Dr Miller.

As a similar problem could occur in other areas of the river at any time, Dr Miller advises people to make their own visual assessment of the river and avoid diving in if black and brown algal mats are found covering large areas of the river bed. People should also avoid swimming in or drinking river water that has a strange musty smell. “If in doubt, go somewhere else,” he says.

Anyone suffering illness after contact with the Whakatane River should seek medical advice.

For more information and images of toxic algae mats go to:
www.ttophs.govt.nz/recreational_water or
www.boprc.govt.nz/environment/rivers-and-drainage/rivers-health-warning/

Cyanobacterial mats vary from dark brown/black and are moss like in appearance, thickness and colour (black to dark green) but have a much slimier texture and glisten when exposed to air. In shallow areas the mats may appear bleached and take on a golden brown colour. The mats are easily dislodged from the riverbed and form floating ‘rafts’.

ENDS

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 
Scoop Review Of Books: The Typewriter Factory

I finished reading Don’t Dream It’s Over not long after it came out last August. I even started writing a review, which took something of an ‘I’m sorry people, but it’s already over’ approach. I’ve been pretty negative about journalism as it’s practiced in the mainstream (or MSM, or corporate media or liberal media or whatever terminology you prefer) for quite some time (see for example Stop the Press), and I believe the current capitalist media model is destructive and can’t be reformed. More>>

Sheep Update: Solo World Shearing Record Broken In Southland

Southland shearer Leon Samuels today set a new World solo eight-hours strongwool ewe-shearing after a tally of 605 in a wool shed north of Gore. More>>

ALSO:

Howard Davis Review: Dick Frizzell At The Solander Gallery

One of the most influential and celebrated contemporary Pop artists working in New Zealand, Dick Frizzell is mostly known for his appropriation of kitsch Kiwiana icons, which he often incorporates into cartoon-like paintings and lithographs. Not content with adhering to one particular style, he likes to adopt consciously unfashionable styles of painting, in a manner reminiscent of Roy Lichtenstein. More>>

Old Music: Pop Icon Adam Ant Announces NZ Tour

Following his recent sold out North American and UK tours, Adam Ant is celebrating the 35th anniversary of the release of his landmark KINGS OF THE WILD FRONTIER album with a newly-remastered reissue (Sony Legacy) and Australasian tour. More>>

Scoop Review Of Books:
Looking Back

Writing a memoir that appeals to a broad readership is a difficult undertaking. As an experienced communicator, Lloyd Geering keeps the reader’s interest alive through ten chapters (or portholes) giving views of different aspects of his life in 20th-century New Zealand. More>>

Scoop Review Of Books: Purple (and Violet) Prose

This is the second recent conjoint publication by Reeve and Stapp; all to do with esoteric, arcane and obscure vocabulary – sesquipedalian, anyone – and so much more besides. Before I write further, I must stress that the book is an equal partnership between words and images and that one cannot thrive without the other. More>>

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Health
Search Scoop  
 
 
Powered by Vodafone
NZ independent news