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

 


Improving lake good news for fisheries

Improving lake good news for fisheries


Lake Rotoiti water quality is the best it has been in decades and this can only be good for fisheries say experts from Fish & Game, NIWA and Bay of Plenty Regional Council.

Regional Council General Manager Natural Resource Operations, Warwick Murray, said water quality improvements were a result of interventions through the Rotorua Te Arawa Lakes programme and that was great news for the community, the Crown and the programme.

“The Ohau diversion wall has been extremely successful in improving water quality. This, coupled with sewage reticulation, has meant we have reached the water quality target for the lake,” Mr Murray said.

“The wall was constructed in 2008 and diverts nutrient rich waters from Lake Rotorua entering Lake Rototi. This is allowing us to see improvements in Lake Rotoiti now and gives us the time needed to make the sustainable changes necessary to secure long term water quality improvements,” he said.

“At the same time we must make sure our interventions don’t have any adverse effects on lake ecology or fisheries and we have a fish monitoring programme in place to monitor the long-term effects of the diversion wall on smelt, trout, koura and kakahi,” Mr Murray said.

The Regional Council leads the fisheries research and monitoring with assistance from NIWA, Fish & Game and Ian Kusabs & Associates. Data has been collected and reviewed for the last seven years, including a period of two years prior to the wall’s construction, by an independent panel of New Zealand fishery experts.

“The latest results from the Fish Monitoring Programme have been very positive,” he said

NIWA Principal Scientist Freshwater Fish Group Manager Dr David Rowe said the results of the smelt monitoring programme in 2012/13 indicated several runs had occurred in the channel over spring.

“The results confirm that strong upstream migrations of both adult and juvenile smelt are occurring with the diversion wall in place.”

Smelt are the main food source for trout and NIWA monitors their channel runs using traps and combining the data with morning and evening observations of smelt movements and shag and gull numbers.

Dr Rowe said larval smelt in Lake Rotoiti also appeared to be increasing as lake water clarity improved.

Eastern Fish & Game Manager Rob Pitkethley said the start of the current trout season was the best on record since surveys began three seasons before the wall went in and this spring’s fishing was a large improvement on the past three seasons.

“Schools of smelt were noted running through the channel prior to the opening in October, and the runs of smelt have lasted through November, which has not been seen for a number of seasons,” Mr Pitkethley said.

“Trout caught in the channel have been in better condition compared to the last few seasons. Recent highly productive smelt spawning from Lake Rotoiti appears to have translated through the food chain into good trout growth, in both lakes Rotoiti and Rotorua.

“Monitoring of the Lake Rotorua and Rotoiti fisheries has shown fluctuations in trout growth and condition, and some recent improvements. The absence of algal blooms and improvements in water quality on both lakes should be beneficial for the longer term health of these fisheries,” said Mr Pitkethley.

Ends

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Gordon Campbell: A Govt. Christmas Bad News Dump -The Skycity Convention Center Blowout & A Negative MBIE Review

If the government really did have good tidings of great joy you can bet it wouldn’t be strewing them about at Christmas time – which is, traditionally, the dumping ground for terrible news that the government fervently hopes the public will be too distracted to notice. And so verily this Christmas Eve we learn of (a) the explosion of costs to the taxpayer and ratepayer of the vile SkyCity convention centre in Auckland and that (b) the government’s flagship MBIE “super-ministry” run by its Minister of Everything is a disaster zone of incompetence and mismanagement. MBIE is a Titanic looking for an iceberg, or so it would seem. More>>

 

Parliament Adjourns:

Greens: CAA Airport Door Report Conflicts With Brownlee’s Claims

The heavily redacted report into the incident shows conflicting versions of events as told by Gerry Brownlee and the Christchurch airport security staff. The report disputes Brownlee’s claim that he was allowed through, and states that he instead pushed his way through. More>>

ALSO:

TAIC: Final Report On Grounding Of MV Rena

Factors that directly contributed to the grounding included the crew:
- not following standard good practice for planning and executing the voyage
- not following standard good practice for navigation watchkeeping
- not following standard good practice when taking over control of the ship. More>>

ALSO:

Gordon Campbell:
On The Pakistan Schoolchildren Killings

The slaughter of the children in Pakistan is incomprehensibly awful. On the side, it has thrown a spotlight onto something that’s become a pop cultural meme. Fans of the Homeland TV series will be well aware of the collusion between sections of the Pakistan military/security establishment on one hand and sections of the Taliban of the other… More>>

ALSO:

Werewolf Satire:
The Politician’s Song

am a perfect picture of the modern politic-i-an:
I don’t precisely have a plan so much as an ambition;
‘Say what will sound most pleasant to the public’ is my main dictum:
And when in doubt attack someone who already is a victim More>>

ALSO:

Flight: Review Into Phillip Smith’s Escape Submitted To Government

The review follows an earlier operational review by the Department of Corrections and interim measures put in place by the Department shortly after prisoner Smith’s escape, and will inform the Government Inquiry currently underway. More>>

ALSO:

Intelligence: Inspector-General Accepts Apology For Leak Of Report

The Inspector-General of Intelligence and Security, Cheryl Gwyn, has accepted an unreserved apology from Hon Phil Goff MP for disclosing some of the contents of her recent Report into the Release of Information by the NZSIS in July and August 2011 to media prior to its publication. The Inspector-General will not take the matter any further. More>>

ALSO:

Drink: Alcohol Advertising Report Released

The report of the Ministerial Forum on Alcohol Advertising and Sponsorship has been released today, with Ministers noting that further work will be required on the feasibility and impact of the proposals. More>>

ALSO:

Other Report:

Leaked Cabinet Papers: Treasury Calls For Health Cuts

Leaked Cabinet papers that show that Government has been advised to cut the health budget by around $200 million is ringing alarm bells throughout the nursing and midwifery community. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news