DOCSLIB.ORG

Lake Rotoma Action Plan

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Lake Rotoma Action Plan Lake Rotoma Action Plan ISSN: 1175 9372 (Print) ISSN: 1179 9471 (Online) Environmental Publication 2009/04 November 2009 (As amended April 2011) THE ROTORUA LAKES Protection and Restoration Action Programme A Bay of Plenty Regional Council, Rotorua District Council and Te Arawa Lakes Trust joint project Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust i Contents Status of Action Plan ........................................................................................... i Chapter 1: Introduction ...................................................................................... 1 1.1 Lake Rotomā .................................................................................................. 1 1.2 What’s the problem? ....................................................................................... 2 1.3 What’s causing the problem? ......................................................................... 5 1.4 Why has this Action Plan been developed? ................................................... 6 1.5 Delivering the Action Plan .............................................................................. 7 Chapter 2: Reducing and preventing nutrient loading from point sources .............................................................................................................. 9 2.1 Nutrients from wastewater entering Lake Rotomā .......................................... 9 Chapter 3: Reducing and preventing nutrient loading from diffuse sources ............................................................................................................ 11 3.1 Nutrients leached to Lake Rotomā as a result of farming ............................. 11 3.2 New advances in technology ........................................................................ 12 3.3 Exploring wetland enhancement .................................................................. 13 3.4 Preventing nutrient release as result of land use .......................................... 14 Chapter 4: Improving knowledge of nutrient sources ........................... 15 4.1 Uncertainty regarding phosphorus entering Lake Rotomā in groundwater ... 15 Chapter 5: Reviewing regulatory interventions ....................................... 17 5.1 Statutory regulatory methods ....................................................................... 17 Chapter 6: Action Plan implementation timeline ..................................... 19 6.1 Implementation timeline ................................................................................ 19 Lake Rotomā Action Plan November 2009 ii Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust Appendices .......................................................................................................... 21 Appendix 1 - Trophic Level Index (TLI) and other indicators ..................................... 23 Appendix 2 - Estimated nutrient loss from the catchment ......................................... 27 Appendix 3 - Calculation of Lake Rotomā’s nutrient reduction target ....................... 29 Appendix 4 - Regional Water and Land Plan Methods 41, 42, 47 and 52 (as applicable to Lake Rotomā) ................................................................. 31 Appendix 5 - Working Party ...................................................................................... 35 November 2009 Lake Rotomā Action Plan Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust iii Status of Action Plan This Action Plan is a non-statutory document. This means that it does not contain rules and cannot require changes to other statutory documents. It provides guidance for the management of Lake Rotomā. It may or may not result in changes to planning documents. Some of the actions may require resource consent. Any such decision will be made at the discretion of individual agencies and will follow statutory process. The Action Plan is a live document and regular reviews will be undertaken to keep it up to date with science, technology and community expectations. Lake Rotomā Action Plan November 2009 1 Chapter 1: Introduction 1.1 Lake Rotomā 1.1.1 Overview This Action Plan encompasses Lakes Rotomā and its catchment (refer Figure 2). It sets out what interventions (or actions) should be undertaken to reduce nutrient (phosphorus and nitrogen) inputs to Lake Rotomā. The Action Plan is a community document as all parts of the community are working together to improve water quality in Lake Rotomā. This Action Plan outlines current known actions and sets out processes to identify future actions to improve water quality in Lake Rotomā. 1.1.2 Background information Formed by volcanic eruptions approximately 8,500 years ago, this eastern-most of the Rotorua Lakes has two distinct basins. The northern basin is the deepest at 83 metres, and the southern basin has a maximum depth of 73.5 metres. The lake surface area is about 1,112 hectares. The lake has a small outflow through porous pumice substrate to Lake Rotoehu, and has some outflow to groundwater. Lake Rotomā means clear water. Lake Rotomā is the cleanest of all the Rotorua Lakes, with around 11 metres water clarity. Figure 1 View from Matahi Bay – southern end of Lake Rotomā Lake Rotomā Action Plan November 2009 2 Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust Table 1 Lake Rotomā at a glance Population Catchment area (km²) Lake area (km²) Max depth (m) Mean depth (m) 258 29 11 83 37 1.1.3 Tangata whenua “The relationships of tangata whenua with Lake Rotomā and its catchment are longstanding and endure. Recognition and provision for their active, ongoing involvement as kaitiaki is a matter of national importance.” – Ngati Awa and Te Arawa. 1.1.4 Community perspective Rotomā is valued by its community for its clean water, healthy ecosystems, recreational and cultural values. “It’s vital that the lake stays in good nick because so much business comes from people who are out here waterskiing and fishing and so on. Rotomā is in good shape but it's also deteriorating – far better to spend the money now to keep it clear than to clean it up down the track." – Keith Marx “Every landowner and leaseholder should be aware that if Lake Rotomā deteriorates to a stage where it is closed for algal blooms then their life style of water skiing fishing etc is no longer available plus the down value of their properties so its up to everybody to make an effort to save the lake not waiting for somebody else to do it or hoping the problem will go away.” - Rae Green 1.2 What’s the problem? The Rotorua Lakes are under pressure from development, land use and other activities that have resulted in a deterioration of lake quality. Twelve of the lakes are in a state of long term deterioration, primarily due to excess nutrient inputs. Lake water quality will continue to deteriorate for the foreseeable future unless the causes are permanently addressed. Although Lake Rotomā has the best lake water quality out of the 12 large Rotorua Lakes in the Bay of Plenty region there are some indicators that lake water quality is slowly getting worse.1 1.2.1 Dissolved oxygen Dissolved oxygen in the bottom waters of the lake has decreased significantly from 1993 to 20061. Although the oxygen levels are still high enough to support bottom- dwelling aquatic life, the decline indicates that water quality is deteriorating. When a lake becomes oxygen-depleted (anoxic) in its bottom waters (usually around a TLI of 3.1 – 3.5, like Lakes Tikitapu and Okareka)2, sediment-bound nutrients are released into the water column. This release of nutrients can change 1 During the 1992 – 2006 water quality analysis period that Environment Bay of Plenty has monitored Scholes, P., Bloxham, M. Rotorua Lakes Water Quality 2006 Report. Environment Bay of Plenty Environmental Publication 2007/12. 2 An explanation of TLI is given in section 1.2.5. November 2009 Lake Rotomā Action Plan Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust 3 the nutrient status of the lake. As a lake becomes eutrophic (nutrient enriched), the nutrient cycling from lakebed sediments starts to dominate lake water quality. Figure 2 Lake Rotomā catchment Lake Rotomā Action Plan November 2009 4 Environment Bay of Plenty, Rotorua District Council, Te Arawa Lakes Trust 1.2.2 Phosphorus The estimated phosphorus load to Lake Rotomā is 736 kg/yr Total phosphorus concentrations in the lake have approximately doubled since 1992 in the bottom and surface waters3. Lake Rotomā tends to be phosphorus-limited, meaning that phosphorus is the limiting factor that controls the growth of algae. 1.2.3 Nitrogen The estimated nitrogen load on Lake Rotomā is 18,110 kg/yr. Total nitrogen concentrations in Lake Rotomā have stayed relatively constant since 1990, despite year-to-year fluctuations. However, since 1992 there has been an increase in ammonium-nitrogen and nitrate-nitrogen concentrations in the bottom waters which mixes throughout the lake in mid-winter each year. Nitrogen levels are increasing in the lake although this increase is not statistically significant at this stage. 1.2.4 The Balance between nitrogen and phosphorus Maintaining the balance between Nitrogen and Phosphorus is important to restore the lake to its former quality. In most of the Rotorua lakes, the lower the N:P ratio, the poorer the water quality. The nitrogen:phosphorus (N:P) ratio in Lake Rotomā has decreased from about 40 in 1994 to 25 in 2008 which is another indicator that
Load more

Recommended publications
  • Centre Handbook
    2020-2021 SEASON Centre Handbook www.bowlsbop.co.nz Phone: 027 210 8338 For all your highest quality Bowls, Clothing, Bags and Accessories, contact: Pat Dean Bay of Plenty 07 544 8118 [email protected] Chevalier Bo 25 Dignan St, Point Chevalier, Auckland 09 846 6728 Bo ' www.bowIsonline.co.nz :See l,u n ,i;e l it e." <1>.n ::z for- ,i;,p,- full r-a1J:ge ,i;,f bowl,i; p r-o ,,h " u BOWLS BAY OF PLENTY (INC) CONTENTS President’s Message ........................................................................................ 3 Board Officers ................................................................................................... 7 Board Members ................................................................................................ 9 Umpires Association .................................................................................... 11 Divisional Officers ......................................................................................... 13 Centre Selectors & Managers .................................................................. 14 Youth Development ...................................................................................... 14 The Website ..................................................................................................... 15 BOP Greenkeepers Association .............................................................. 17 NZ Blind Lawn Bowls Association ........................................................ 18 NZ Disabled Lawn Bowls Assn ...............................................................
    [Show full text]
  • Heading/Title Aquatic Pest Report 2019
    Aquatic Pest Report 2019 Bay of Plenty Regional Council Environmental Publication 2019/03 FebruaryHeading/title 2019 PreparedSubheading by Freya Ewing and Thomas Bailey (Summer Students) 5Month Quay YearStreet P O Box 364 WhakatānePrepared by NEW ZEALAND ISSN: 1175-9372 (Print) ISSN: 1179-9471 (Online) Cover photo: Rowan Wells (NIWA) Acknowledgements We would like to thank Hamish Lass, Biosecurity Officer for his support and guidance, and Lucas MacDonald, Biosecurity Officer for his assistance and advice across all advocacy work. Our acknowledgements also go to Greg Corbett and the remainder of the Biosecurity Team at the Bay of Plenty Regional Council, we are grateful for the encouragement and support we received from all of you. We would also like to show our gratitude to Geoff Ewert for his continued commitment to the Rotorua Lakes, in particular with fixing weed cordons and the running of the boat wash station. We are also immensely grateful to Sarah Van Der Boom from Freshwater Biosecurity Partnership Program for her help with data collection. Lastly, we would like to thank Sam Beaumont and the remainder of the team at Ministry for Primary Industries, for the supplying of merchandise and collateral, signage and guidance. BAY OF PLENTY REGIONAL COUNCIL TOI MOANA 1 Executive summary Many of New Zealand’s most well-known lakes and rivers can be found in the Bay of Plenty region and are therefore known to attract significant visitor numbers annually. The preservation and protection of these waterways are what attracts so many international and domestic tourists to them. Due to the close proximity of the Bay of Plenty lakes and rivers, and their popularity, they are extremely susceptible to invasive pest species.
    [Show full text]
  • Bay of Plenty Secondary Schools 2020 Handbook
    Bay of Plenty Secondary Schools 2020 Handbook SECONDARY SCHOOL CONTACTS CHAIRPERSON Carleen James School: 07 349 5940 Email: [email protected] DEPUTY CHAIRPERSON Tuahu Waretini-Thomas Phone: 07 575 3096 Email: [email protected] DRAW STEWARD BOP Rugby Union SKED Competition Platform Contact: Pat Rae [email protected] AQUINAS COLLEGE Ange McManaway Phone: 07 543 2400 Email: [email protected] BETHLEHEM COLLEGE Andy Bartrum Phone: 07 576 6769 Email: [email protected] EDGECUMBE COLLEGE Lisa Robinson Phone: 07 304 8211 Email: [email protected] JOHN PAUL COLLEGE Tim Hounsell Phone: 07 347 8795 Email: [email protected] KATIKATI COLLEGE Angus Donald 33 Beach Rd, Katikati Phone: 07 549 0434 Email: [email protected] MOUNT MAUNGANUI COLLEGE Tuahu Waretini-Thomas Phone: 07 575 3096 Email: [email protected] MURUPARA AREA SCHOOL Tanetiki Takuira (Sports Co-ordinator) 84 Pine Dr, Murupara Phone: 07 366 5601 Email: [email protected] OPOTIKI COLLEGE Sophie Takamore (Sports Co-ordinator) St Johns St, Opotiki Phone: 07 315 7022 Email: [email protected] OTUMOETAI COLLEGE Paul Braddock 105 Windsor Rd, Bellevue, Tauranga Phone: 07 576 2316 Email: [email protected] PAPAMOA COLLEGE Nick Leask 151 Doncaster Dr, Papamoa Phone 07-542 0676 Email: [email protected] REPOROA COLLEGE Kirsten Fairley Massey Rd, Reporoa Phone: 07 333 8117 ext 2 Email: [email protected] ROTORUA BOYS HIGH SCHOOL Deon Muir Co Director Ngarimu Simpkins Co Director
    [Show full text]
  • Bowls Bay of Plenty Incorporated
    BOWLS BAY OF PLENTY INCORPORATED Minutes of the Annual General Meeting of Bowls Bay of Plenty Incorporated held at the Rotorua Bowling Club at 10.00 a.m. on Sunday 9th August 2020. Welcome The Centre President Mr Ross Harvey opened the meeting and welcomed the Delegates, Board Members and observers. Obituary Ross Harvey asked that all present to stand for a moments silence in remembrance for those Bowlers and family members who had passed on during the last year. Special mention of Brendon Neutze Speaking Rights. Moved: That speaking rights be accorded to Centre Board Members, the Centre Manager and CEO of Bowls NZ (Mark Cameron). Moved: Kawerau Seconded: Taupo CARRIED Roll Call Board Members Ross Harvey (Chair, President), John Foreman, Diane Smith, Graham Skellern, Derek Kendall, Liz Witton. Geoff Tuckey (Acting Centre Manager) Club Delegates Arawa Tom MacKenzie, Ian Thompson, Alan McCauley Bowls Mt Maunganui Kevin Maxfield, Noel Topp, Keith Arthur Bowls Tauranga South Judith Payne, Karin Clarke Bowls Matua Chris Neilson, Jim Wilson Edgecumbe In recess Katikati Not Present Kawerau Marcus Merrick, Brian Dixon Ngongotaha Lil McGregor, Mere Eden Ohope Margaret O’Regan, Jocelyn Jones Omanu In Recess Omokoroa Ross Harvey, Bill Murphy, Gary Russek Opotiki Apologies Papamoa Bob Dunning, Lynne Bodger Reporoa Ross Henderson, Peter Kelly Rotorua Robert Clarke, Conan O’Brien Rotorua East Harold Hunt, Rob Bell Taupo David Jones, Darrell Purdie Tauranga Paul Hunt, Steve Hughes, Marilyn Constantine Te Puke Brian Bennett, Bill Reid, Merv Gibbons Turangi Not Present Whakatane John Foreman, Don Warren, Kathy DEmpster-Rivett Apologies Moved That the apologies of Opotiki Club, John Chelley, Peter Joyce, Rod Warrender, and Ken Boyle be sustained Moved: Matua Seconded: Tauranga CARRIED Minutes of the 2019 Bowls BOP AGM.
    [Show full text]
  • Guide to Lake Structures
    Guide to lake structures What are lake structures? Lake Airspace This means anything constructed, ownership and whether temporary or permanent, management Lake structure Crown water moveable or immovable, where any column and part intrudes into, or is placed over, This diagram describes airspace stratum the waters of a lake, or is on land that lake ownership for the would be covered by water when lake Rotorua Te Arawa Lakes Water column levels rise, and includes: Ōkāreka, Ōkataina, ▪ Buildings (boatshed, boat port) Rerewhakaitū, Rotoehu, Rotoiti, Rotomā, Lakebed ▪ Structures (jetty, ramp, including Rotomahana, Rotorua, boat ramps, slipway, stairs) Tarawera and Tikitapu; Te Arawa ▪ Moorings including Lakes lakebed and subsoil ▪ Walls and retaining walls built of Ngāhewa, Ngāpōuri and Subsoil stratum any material, including rocks. Tūtaeinanga located in the Waikato Region. Requirements for consents are the same, whether for a new structure or an extension to an existing structure. A lake structure Why do we need rules? Who does what? Rotorua lakes are a national treasure ▪ Land Information New Zealand A private Trust owns Lake and a jewel of the Bay of Plenty. administers the Crown Stratum Rotokawau, a Māori Trust owns They are also significant habitat for a on behalf of the Crown. Lake Rotokākahi. For advice number of aquatic plants and animals. ▪ Te Arawa Lakes Trust are on Lake Ōkaro, contact Rotorua Any application to build a structure on landowners of the District Council. If you want to erect the lakes will need to consider how it Te Arawa lakebeds, and a structure in these lakes, contact will affect these. administer and manage the Bay of Plenty Regional Council for Te Arawa stratum.
    [Show full text]
  • Huharua, Pukewhanake and Nga Kuri a Wharei
    HUHARUA, PUKEWHANAKE, AND NGA KUru A WHAREI by Heather Bassett Richard Kay A research report commissioned by the Waitangi Tribunal forWai 47 December 1996 238 J ~ TABLE OF CONTENTS Table of Figures 3 "11 Introduction 4 The Claim 4 :l 1. Buharua 6 '''-.- 1.1 Introduction 6 ~ 1.2 Raupatu and the Creation of Reserves 6 1.3 Alienation of Maori Reserves 12 1.4 Control, Management and Access to Huharua 17 J 1.5 Summary 20 2. Pukewhanake 22 J 2.1 Location and People ofPukewhanake 22 2.2 Raupatu West of the Wairoa River 23 2.3 Lot 178 Parish ofTe Puna 26 :1 2.4 Control, Use and Management ofPukewhanake 27 2.5 Summary 31 :J 3. Nga Kuri a Wharei 33 3.1 Traditional Boundary: 'Mai Tikirau ki Nga Kuri a Wharei' 33 :1 3.2 Raupatu Boundary 35 3.3 Summary 37 ] Bibliography 39 Appendix One: Statement of Claim, Wai 47 41 :J :J .J J "1 L ~ 1 ! u , ' ,- .. 2 239 TABLE OF FIGURES Figure 1: Cultural Sites Around Tauranga Harbour (from Stokes, 1992, p 45) Figure 2: Fords from Plummers Point (from WI 35/161 Omokoroa - Te Puna, National Archives Wellington) Figure 3: Reserves in the Katikati Te Puna Purchase (from Stokes, 1990, p 192) Figure 4: Lot 210 Parish ofTe Puna (ML423A) Figure 5: Plummers Point 1886 (SO 5222) Figure 6: Lot 178 Parish ofTe Puna Today (SDIMap) Figure 7: Pa Sites on the Wairoa River 1864 (from Kahotea, 1996) Figure 8: Boundaries of the Katikati Te Puna Purchases (from Stokes, 1996) Figure 9: Plan of Native Reserves (ML 9760) Figure 10: Pukewhanake 1 October 1996 (Photos by author) Figure 11: Plan of the "Ngaiterangi" Purchase Deed (from Stokes, 1996) Figure 12: Plan of the Tawera Purchase Deed (from Stokes, 1996) Figure 13: Plan of the "Pirirakau" Purchase Deed (from Stokes, 1996) Figure 14: Boundaries of the Katikati Te Puna Purchases (from Stokes, 1996) Figure 15: Nga Kuri a Wharei and the Confiscation Line (from Stokes, Whanau a Tauwhao, p 19) 3 240 1.
    [Show full text]
  • Proposals Considered by the NZGB on 18 October 2019 For: Ngāmotu [Assign a New Name]
    Proposals considered by the NZGB on 18 October 2019 for: Ngāmotu [assign a new name] Otangiwao [altered from Otangiwai Point] NZTopo50-BE38 Crown copyright reserved Inset map LINZ ‘Topo’ basemap Summary The proposals are to restore two original Māori names by: - assigning Ngāmotu to an unnamed peninsula on the west shores of Lake Rotomā, approximately 30km east-northeast of Rotorua, and - altering Otangiwai Point (unofficial recorded) to Otangiwao, for the small point on the southwest shore of Lake Rotomā, correcting the spelling and dropping the English generic term, Point. The proposers, Ngāti Tamateatūtahi/Ngāti Kawiti, advise they are mana whenua, and their preference is no English generic term be included with either name. A local marae, Tapuaeharuru, Te Tatau o Te Arawa (a governance body), and the Bay of Plenty Regional Council support the proposals. Ngāti Pikiao, Rotorua Lakes District Council, and other iwi and post Settlement entities with interests in the area have not provided their views. Ngāmotu names are duplicated many times in the North Island, including a hill ~30km southeast of the proposal. The NZGB may consider adding a generic term to Ngāmotu, for example, Ngāmotu Peninsula, to make the name unique and the feature easily identifiable in an emergency. A local use name Doctors Point may apply to the entire feature or only the eastern end. Otangiwai Point is a popular site for diving, including commercial operations, so to identify the feature in an emergency the NZGB may consider retaining the ‘Point’ generic term, which is in long term use. Otangiwai Point is also known as Ngātangiwao, and Letterbox Island (or Letterbox Point) is a local use name.
    [Show full text]
  • 11 July 2309
    11 JULY NEW ZEALAND GAZETTE 2309 Amount Distributed Name of Organisation or Person $ Third Rotorua Girls' Brigade 300.00 Lake Rotoma Indoor Bowling Club 300.00 Rotorua Special Olympics Inc 600.00 Selwyn Kindergarten 300.00 Rotorua Underwater Hockey Club 300.00 Te Whanau Taura Here O Aotearoa Ki Rotorua 500.00 Pacific Islanders' Fellowship 1,000.00 Rotorua Child Cancer Support Group 1,000.00 Wohlmann House Community Cultural Centre 500.00 Rotorua Parents Centre 500.00 Rotorua Community Toy Library Inc 200.00 Rotorua Hockey Association 1,000.00 Patients Publication Advisory Committee Queen Elizabeth and Rotorua Hospital 1,000.00 Rotorua Lifelink/Y outhline Service 500.00 Jackson Park Free Kindergarten 500.00 Lake Tarawera Fire Unit 500.00 La Leche League New Zealand Area 2 Workshop Account 200.00 Rotorua Family Violence Prevention Trust 500.00 Rotorua Community Hospice Trust (Inc) 1,000.00 Rotorua Budget Advisory Service (Inc) 500.00 Rotorua Victim Support Group 500.00 NZ Society for the Intellectually Handicapped 5,000.00 Pregnancy Counselling Services (Rotorua Branch) 500.00 Rotorua/Taupo Branch Kidney Foundation 300.00 Cook Islands (NZ) Society lnc-Rotorua Branch 1,000.00 Rotorua Central Scout Group 1,200.00 Rotorua Girls' Brigade Companies 300.00 National Society on Alcoholism and Drug Dependence New Zealand 2,000.00 Bay of Plenty Unemployed and Beneficiaries Union 500.00 First Rotorua Boys' Brigade 300.00 Lake Okareka Rural Fire-Fighting Force Inc 500.00 Head Injury Support Group-Rotorua 500.00 Reporoa College 1,000.00 Festivart 90"
    [Show full text]
  • Bay of Plenty Times Weekend Inside Story Saturday,March 16, 2013 Abravebut Humblehero
    14 Bay of Plenty Times Weekend Inside Story Saturday,March 16, 2013 Abravebut humblehero EPUHI Patara’s eyeshave seen horrors mostofuscan only imagine. Those sameeyes regard me now as he castshis mind James Tback70years to Italyand the ferociousfront-linefighting between the Fuller Allies and Hitler’s forces at the tail-end of He survivedthe World WarII. Brave but humble men are the most referred to as ‘‘TwoEight’’ by its horrorsofWorld admirable of all and Mr Patara is one. members,was madeupoffive battalions, Until now,hehad never spoken publicly four of which wereformed alongtribal WarIIbut Te about his wartime exploits and Iwould lines. Mr Patara was partofBCompany, not be sitting herewith him but for his featuringMaori from Rotorua, the Bay of Puhi Patara has daughter, Hinemihi. Plenty and Thames-Coromandel. ‘‘I thinkhemisseshis mates alot and He saysthe biggest battle his section nevertalked doesn’t really talk about the war much, was involved in was at Faenza in except to thosewho werethere,’’ she had November/December 1944. aboutitpublicly told me. ‘‘Ourreinforcementdid mostofour Nearly 3600 men served overseaswith fighting there. We always attackedat —until now. In the 28th Maori Battalionbetween 1940 night, the New Zealanders and the and 1945.Just 23 are still alive. British. Theyalways had search lights at this interview, The poignancy of this statistic is the backofus, shining it up in the air, like heightened by the fact it was 24 until last moonlight, so you could see where you thememberof Sunday,when Mr Patara’s friend and weregoing.Then they would shoot shells comrade, Aubrey Balzer, passed away. with red and greentracers and you the28thMaori Mr Balzer was originally from the followed them as you moved along, so Maketu area and still maintained ahome you wouldn’tend up in the wrong place.
    [Show full text]
  • The Hamurana Stream in Lake Rotorua: Some Potential Effects of Its Diversion on the Trout Fishery and on Summer Nutrient Dynamics
    The Hamurana Stream in Lake Rotorua: some potential effects of its diversion on the trout fishery and on summer nutrient dynamics NIWA Client Report: HAM2005-025 June 2005 NIWA Project: BOP05233 The Hamurana Stream in Lake Rotorua: some potential effects of its diversion on the trout fishery and on summer nutrient dynamics Dave Rowe Max Gibbs Eddie Bowman Stan Lodge Prepared for Environment Bay of Plenty NIWA Client Report: HAM2005-025 June 2005 NIWA Project: BOP05233 National Institute of Water & Atmospheric Research Ltd Gate 10, Silverdale Road, Hamilton P O Box 11115, Hamilton, New Zealand Phone +64-7-856 7026, Fax +64-7-856 0151 www.niwa.co.nz All rights reserved. This publication may not be reproduced or copied in any form without the permission of the client. Such permission is to be given only in accordance with the terms of the client's contract with NIWA. This copyright extends to all forms of copying and any storage of material in any kind of information retrieval system. Contents Executive Summary iv 1. Background 1 2. Size and location of the cold-water plume 3 2.1 Introduction 3 2.2 Methods 5 2.3 Results 8 2.3.1 Physical measurements 8 2.3.2 Temperature measurements 10 2.3.3 Mixing proportions 15 2.3.4 Implications for nutrient inputs 18 3. Importance of the cold-water habitat for trout 20 3.1 Introduction 20 3.2 Methods 24 3.3 Results 26 3.3.1 Hot versus cold summers 26 3.3.2 Summer changes in trout condition factor for Lake Rotorua 27 3.3.3 Differences between lakes Rotorua and Rotoehu 32 3.3.4 Water temperature effects on the fisheries.
    [Show full text]
  • Lake Rotoma 17/08/2012 New Zealand Topographic Map - Topomap.Co.Nz Topomap.Co.Nz Images Sourced from LINZ Topographic Maps
    Trip Card # 004 Lake Rotoma 17/08/2012 New Zealand Topographic Map - topomap.co.nz topomap.co.nz Images Sourced from LINZ Topographic Maps. Crown Copyright Reserved. Lake Rotoma Route card No. 004 Skill level: Beginner Distance: 10 - 12 Km Map no: BE38 Start/ finish point: Boat Ramp on State Highway 30 by Whangaroa Inlet Comms coverage: Communication coverage is intermitent with VHF & phone w w w .topomap.co.nz/Print?sw =16225,6314&ne=16232,6319&z=14&t=85&s=A 4&o=Portrait Introduction: If you’re wanting peace and tran- clockwise around the lake following the shoreline, quility and a chance to explore one of the smaller if you wish to shorten your trip just cut out explor- and less intimidating lakes of Rotorua then look no ing Te Rotoiti Bay and go form one peninsula to further. Lake Rotoma is quieter than many of the the other. Heading back round the lake you’ll start others and offers it’s own character. This is a sce- to see some secluded baches nestled in the bush. nic lake paddle with a few hidden surprises. On first Keep you’re eye open for the white sculpture in the appearances the lake seems just like many others water, which is best seen when lake levels are mid but depending on the lake level you will discover a to low. Heading back towards the boat ramp you few treats can explore up the Whangaroa Outlet before exit- ing the lake. Fishing on the lake is permitted and Description: Lake Rotoma, which is is the fourth there are good trout to be had but you do need to largest lake of the 11 lakes in the Rotorua Lakes get a permit from DOC.
    [Show full text]
  • Game Bird Hunting Areas Rotorua Lakes
    Game bird hunting areas Rotorua lakes Eastern Region Lake Rotoiti Lake Rotorua Open to hunting (public land) Closed to hunting Other areas of private land might be available to be hunted by gaining permission of landowner. Lake Rotorua Open to game bird hunting with some closed areas as indicated on map. These areas are Sulphur Bay, Hamurana Stream and the lake within a radius of 800 metres of the Hamurana stream mouth and Mokoia Island plus a radius of 100 metres off the Island. When hunting on Lake Rotorua be aware of built-up areas and those used by the public and your responsibility pursuant to the Arms Act 1983. (see over) Lake Rotoiti Open to game bird hunting. Shore based hunting is only permitted on the sections of Lake Rotoiti Scenic Lake Rotoehu Reserve identified on the map, and a DOC game bird hunting permit is required. Maimais are not permitted on Lake Rotoiti. Lake Rotoehu Open to game bird hunting. Shore based hunting is only permitted on the sections of Lake Rotoehu Scenic Reserve identified on the map, and a DOC game bird hunting permit is required. Temporary maimais may be constructed but no earlier than two weeks before the beginning of the game bird hunting season. All temporary structures must be removed no later than two weeks after the close of the game bird hunting season. Lake Rotoma Open to game bird hunting. Shore based hunting is only permitted on the sections of Lake Rotoma Scenic Reserve identified on the map, and a DOC game bird hunting permit is required.
    [Show full text]