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

 


Low levels of algae a good sign for swimmers

MEDIA RELEASE


Friday, February 21, 2014


Low levels of algae a good sign for swimmers

Recent monitoring by Horizons Regional Council has found lower than anticipated blue-green algae levels in the Manawatu River catchment, making it a great time to enjoy the Region’s rivers.

None of the 35 sites visited by Horizons’ science team over the past week exceeded guidelines for the algae, also known as cyanobacteria. However, with more sunshine, warmer water and low flows on the cards, conditions could change over the next 10 days.

Horizons freshwater and science manager Dr Jon Roygard says Horizons is currently studying factors that lead to blue-green algae growth and what causes it to produce toxins in some cases.

“We actually had researchers from NIWA, Cawthron and the University of Canterbury scheduled to look at cyanobacteria mats over the weekend but with such low levels there’s not enough for them to study.

“That’s not to say it won’t come back. As cyanobacteria grows rapidly under the right conditions, we have permanent signage up along the Mangatainoka River at SH 2, the Tokomaru River at Horseshoe Bend and the Manawatu River at Hopelands,” he says.

When blue-green algae does bloom, it appears as a slimy black or dark brown mat on the rocks. Growths can dislodge and float downstream or dry out on gravel at the sides of rivers or streams as water levels drop.

While not all blooms are toxic, toxins produced by the algae can be harmful to people and animals. It is recommended that people avoid using a river or stream should they observe musty-smelling, black slimy mat-like growths on river bed stones as a precaution.

Horizons chief executive Michael McCartney says it’s great to see people getting out and enjoying all the Region has to offer but it is important to remain mindful of the risks.

“We have some wonderful swimming holes in our Region and we encourage people to get out and enjoy themselves this summer. At the same time, we need to be aware that rivers do change and it’s vital to look out for hazards such as blue-green algae, sunken logs, rocks and cliffs.”

People are advised to swim away from cliffs wherever possible and remember the following rules of thumb:

• If the water looks clean and clear and it is a sunny day, it should be safe to swim

• It is safest to wait three days after rain before swimming at river swimming spots

Horizons will continue its summer water quality monitoring programme until the end of April. The latest results are available online via the swim spots section of www.horizons.govt.nz

ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Parliament Today:

Parliament Restarts: Prime Minister’s Statement

Our policy agenda and legislative programme will reflect the Government’s four priorities: • to responsibly manage the Government’s finances • to build a more competitive and productive economy • to deliver better public services to New Zealanders, an • to support the rebuilding of Christchurch. More>>

ALSO:

NZEI Survey Report: Special Needs Students Missing Out

The survey revealed that around 16 percent of students were on schools’ special needs registers, but nearly 90 percent of schools’ special needs coordinators did not believe there was adequate support for students and their learning... More>>

ALSO:

Interim Report: Waitangi Tribunal On Ture Whenua Legislation

Labour on Proposed changes to Maori land rules: “To have Treaty Negotiations Minister Chris Finlayson dismiss findings as ‘bizarre’ is totally disingenuous and disrespectful. What’s bizarre is Maori Development Minister Te Ururoa Flavell stubbornly pushing through this Bill before the Waitangi Tribunal has even completed its report..." More>>

ALSO:

Spy Update: Appointment Of GCSB Acting Director

GCSB Chief Legal Advisor Lisa Fong will become the Acting Director of the Government Communications Security Bureau (GCSB) from 15 February 2016, Minister Responsible for the GCSB Christopher Finlayson announced today. More>>

Protests Close Roads: TPP Signed In Auckland

“TPP was signed by Australia, Brunei Darussalam, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, the United States and Viet Nam.” More>>

ALSO:

Emails Behind 'Diplomatic Immunity' Case: Whitehead Report Released

“As previously indicated the conclusions reached by Mr Whitehead’s investigation are not unexpected but they are very disappointing,” Mr Mccully says. “At the heart of the matter is a single email, along with procedural shortcomings, which gave Malaysian officials the impression it would be acceptable for Mr Rizalman to return to Malaysia." More>>

ALSO:

Gordon Campbell: On The Treaty/TPP Overlap, And Iowa

The fears about the ISDS provisions in the Trans Pacific Partnership deal are well-founded. The reality is that there is a sharp uptick in the occurrence of ISDS litigation in developed countries, and even the right wing likes of The Economist have been souring on the process for some time. More>>

ALSO:

Christchurch Red Zone Offers: Fresh High Court Proceedings

Grant Cameron, Solicitor for the Quake Outcasts said “the action seeks judicial review of the Crown’s recent decision to make a fresh offer to purchase properties from uninsured property owners in red zones. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news