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This collection of papers looks at the important field of marine work which seeks to describe and map habitats in the marine environment and the methods used to do this work. Habitat mapping is a key tool used to underpin the design of MPA's.

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This file has a .pdf extensionNorthland Marine Habitat Map Report
Author(s): Vince Kerr

The marine technical team at Northland Conservancy has completed a marine habitat map and habitat map report for the Northland section of the Northeast Marine Bioregion. The maps cover an area of 1.34 million hectares extending out 12 nautical miles from the coast between Ahipara in the west to Mangawhai on the east coast.

Habitats were classified according to the Marine Protected Areas Classification, Protection Standard and Implementation Guidelines, with modifications required by insufficient data quality in some areas of the region. Data were collated from a range of recent and historic sources. These data include multibeam and sidescan sonar data from the National Institute for Water and Atmospheric Research and Land Information New Zealand.  A ‘rapid sonar survey’ technique was developed to fill data gaps for areas not covered by past or recent survey effort. These sources and methods are described to assist in understanding the strengths and weaknesses of the current habitat maps and to help implement improvements in this and future work

Rocky reefs make up 14.3% of the mapped area, indicating the presence of a significant array of these habitats. Estuarine areas make up 3.3% of the mapping area and include internationally significant tidal flats, Zostera capricorni seagrass beds and the Avicennia marina mangrove areas of Parengarenga and Rangaunu Harbours.

The use of the habitat maps to identify potential locations for a network of marine protected areas in Northland is discussed and recommendations are made to incorporate this information within decision support tools to assist in planning, education and community engagement. The habitat maps, underlying data and techniques developed also provide a valuable resource for other research and management projects in Northland and elsewhere.

Added to archive on 06/30/2010 and placed in the following categories: Marine Biodiversity NZ | Habitat Studies NZ | MPA's and Networks NZ | MPA Case Studies | MPA Network and Marine Reserve Design | MPA Process and Policy | MPA Proposals and Applications |

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This file has a .pdf extensionCrayfish at the Leigh Marine Reserve
Author(s): D Egli and R Babcock

The story of the crayfish - Crayfish (Jasus edwardsii) are an important component of temperate reef ecosystems. They have shown a dramatic increase in numbers inside the marine reserve at Leigh, where crayfish numbers are about 4 times higher than in adjacent fished areas. In other reserves the protected population is even higher. Crayfish inside the Leigh reserve are about 10% larger than elsewhere.

Added to archive on 06/05/2010 and placed in the following categories: Education High School | Biology | Fisheries Management NZ | Marine Biodiversity NZ | Habitat Studies NZ | MPA's and Networks NZ | MPA Case Studies | MPA Network and Marine Reserve Design | Marine Reserve Research and Monitoring NZ |

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This file has a .PDF extension2003 Historic Crayfish Report
Author(s): Vince Kerr and Roger Grace

Summer of 2003 subtidal monitoring of crayfish and fishes. Two spotted black grouper present at the end of Pa Point. Red crays numbers remain low, packhorse seen in Mimi area.

Added to archive on 05/30/2010 and placed in the following categories: Fisheries Management NZ | Marine Biodiversity NZ | Habitat Studies NZ | MPA's and Networks NZ | MPA Case Studies | Marine Reserve Research and Monitoring NZ |

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This file has a .pdf extensionMimiwhangata 2005 historic monitoring
Author(s): Vince Kerr and Roger Grace

In the summer of 2005 monitoring of all ten permanent fish and crayfish transects again completed. Number had dropped event further.

Added to archive on 05/26/2010 and placed in the following categories: Habitat Studies NZ | MPA's and Networks NZ | Marine Reserve Research and Monitoring NZ |

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This file has a .PDF extensionDeep Reef Report
Author(s): Vince Kerr and Roger Grace

Work done in the 70’s at Mimiwhangata (B et.al.1973) can be compared to 2002 side-scan sonar and remote video to allow mapping of the reef habitat to depths of 33 to 72 metres, showed considerable differences. This survey extends to 4km offshore

Added to archive on 05/26/2010 and placed in the following categories: Marine Biodiversity NZ | Habitat Studies NZ | MPA's and Networks NZ | Marine Reserve Research and Monitoring NZ |

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This file has a .pdf extensionA Marine Habitat Map of Motukaroro Island
Author(s): Vince Kerr and Roger Grace

The marine habitats of Motukaroro Island in Whangarei Harbour are mapped and described in this report

Added to archive on 09/13/2015 and placed in the following categories: Habitat Studies NZ |

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This file has a .pdf extensionA Preliminary Marine Habitat Survey of Taiharuru Reef, Northland
Author(s): Vince Kerr and Roger Grace

A survey of habitats at Taiharuru, habitat map, filed notes and pictures from the survey

Added to archive on 09/13/2015 and placed in the following categories: Habitat Studies NZ |

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This file has a .pdf extensionECOLOGICAL RESTORATION OF THE TAIHARURU CATCHMENT
Author(s): Ray Pierce and Vince Kerr

The prime purpose of the current ecological restoration document is to provide guidance
to the Taiharuru Catchment Care Group on biodiversity values present and opportunities to achieve the outcomes of
the strategic document and vision. It also provides background information on the
Taiharuru catchment as a whole that will be useful to all landowners.

Added to archive on 06/17/2015 and placed in the following categories: NZ Marine Conservation Community Group | Freshwater Management in New Zealand | Habitat Studies NZ | Mangroves |

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This file has a .pdf extensionMarine habitats of the North Coast of Waiheke Island, Hauraki Gulf 2013
Author(s): Vince Kerr

Marine habitats along the north coast of Waiheke Island, New Zealand were mapped using single and side scan sonar, underwater video and still photography. The study surveyed 60 km of coast from Matiatia to Hooks Bay and waters 4 km northwards to D’Urville and Horuhoru (Gannet) Rocks, a total area of over 130 km2.

Added to archive on 11/25/2013 and placed in the following categories: Habitat Studies NZ |

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This file has a .pdf extensionPoster - Marine Habitat Map of Northland: Mangawhai to Ahipara Vers. 1
Author(s): Vince Kerr

A poster supporting the version 1 map and report

A marine habitat map for the Northland section of the Northeast Marine
Bioregion in New Zealand’s territorial sea has been completed and is
presented in a series of maps. The maps cover an area of 1.34 million
hectares extending out 12 nautical miles from the coast between Ahipara
in the west to Mangawhai on the east coast.

Data were collated from a range of recent and historic sources,
and merged and analysed in ArcGIS 9.3.1 Geographical Information
System. These data include multibeam and sidescan sonar data from
the National Institute for Water and Atmospheric Research and Land
Information New Zealand. A ‘rapid sonar survey’ technique was developed
to fill data gaps for areas not covered by past or recent survey effort.
These sources and methods are described to assist in understanding
the strengths and weaknesses of the current habitat maps and to help
implement improvements in this and future work.

The use of the habitat maps to identify potential locations for a network
of marine protected areas in Northland is discussed and recommendations
are made to incorporate this information within decision support tools
to assist in planning, education and community engagement.

Added to archive on 06/06/2010 and placed in the following categories: Marine Biodiversity NZ | Habitat Studies NZ | MPA's and Networks NZ | MPA Case Studies | MPA Network and Marine Reserve Design | MPA Process and Policy | MPA Proposals and Applications | Marine Reserve Research and Monitoring NZ |

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