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Marine Biosecurity Resources
Incursions and Near Miss Register
Register of incursions and near miss events that is regularly updated. Latest update 24 January 2018.
956 KB • PDF File
The TOS Marine Biosecurity Partnership has focused some of its activities on better understanding and managing biofouling risks from recreational vessel movements. Work over the last two summers has included biofouling assessments of recreational boats from across the TOS region, along with surveys of boaters to better understand their voyage habits and maintenance practices. Simultaneous with the summer work, biofouling assessments and boater surveys have been undertaken by appropriately-trained travel-lift operators at the Nelson and Waikawa hard-stands. The first part of this report describes the hard-stand survey work, and compares the results to previous summer survey findings. In the second part of the report, combined data from the summer surveys and hard-stand study are used to explore the extent to which levels of fouling on recreational vessels are related to boater practices with respect to antifouling, cleaning and boat usage, as these are all recognised risk factors.1.3M • PDF File
Regional Recreational Vessel Fouling Survey: Summer 2016/17
This report describes a summer monitoring survey of fouling and marine pests on recreational vessels across the Top of the South, as well as marine pest checks on a subset of associated moorings and other structures. The survey focused on locations outside of the main vessel hubs, and included areas commonly visited by boaters from other regions. The key findings described reinforce the potential role of recreational vessels in the spread of marine pests, and highlight the importance of managing this pathway effectively.
1.5M • PDF File
Cawthron Report 2015
Cawthron Institute was contracted to collate information on: (i) risk pathways into and within the TOS region; (ii) current approaches to managing biosecurity risks from vessels; and (iii) existing and in-development treatment tools and other risk mitigation measures including their regional availability, and the feasibility and costs of their implementation.3.3 M • PDF File
Marine Pests Poster
A2 size poster. Hard copies available free to people within the Top of the South region. The poster details the marine pests that are currently present in New Zealand, as well as the ones we need to watch out for, and what to do if you find them. If you would like a poster, please email us with your details.
Note: For those outside the region there will be a cost of $20 + postage.
326 KB • PDF File
Addressing Sea Chest Risks in the TOS
This short report highlights vessel sea-chests as an important marine biosecurity risk to the TOS.
328 KB • PDF File • 21 December 2014
Vessel Hull Fouling Survey and Boater Questionnaire 2016
The Top of the South (TOS) Marine Biosecurity Partnership has been focusing some of its activities on better understanding and managing biofouling risks from recreational vessel movements. There are several thousand recreational vessels at marina berths or on swing moorings in the TOS region, as well as vessels that visit from areas outside the TOS. This study found that recreational vessels pose a significant biosecurity risk to many of the locations with important values in the Top of the South (TOS).
1.2 M • PDF File • June 2016
Vessel Hull Fouling Report 2014
This report describes a survey of hull fouling on 528 recreational vessels in the TOS that was conducted in summer 2014, which repeats monitoring undertaken in summer 2013. Vessels inspected consisted of 459 in Nelson marina, and 69 on swing moorings in Nelson Harbour (19) and Waikawa Bay (50).
1.1 MB • PDF File • 30 June 2014
In summer 2013, hull fouling status was surveyed on 577 vessels in the top of the south island, consisting of berths and pile moorings in Nelson marina, and a small number of swing moorings in Nelson Harbour and Waikawa Bay. This report outlines the findings.
1.9 MB • PDF File • 28 June 2013
Background information on Mediterranean fanworm (Sabella Spallanzanii) to support regional response
Cawthron Institute was commissioned by Marlborough District Council under the Ministry of Science and Innovation's Envirolink medium advice grant scheme to conduct a desktop assessment of key technical information relating to this species, and provide an evaluation of the invasion potential and considerations for management within the Marlborough region. At the inception of the report Sabella was not believed to be present in the region, however in late February 2014, a small population was discovered on a boat moored in Waikawa Bay. As such, information regarding Sabella's biology, likelihood of establishment, potential for further spread, and impacts on key values is particularly timely.
1.2 MB • PDF File • 9 June 2014
Cawthron Institute was commissioned by Marlborough District Council under the Ministry of Science and Innovation's Envirolink medium advice grant scheme to conduct a desktop assessment of key technical information relating to this species, and provide an evaluation of the invasion potential and considerations for management within the Marlborough region. Information regarding Pyura's biology, likelihood of establishment, potential for further spread, and impacts on key values will enable effective decision-making around any future eradication or containment efforts.
1.5 MB • PDF File • 9 June 2014
The clubbed tunicate, Styela clava is a type of sea squirt, and in New Zealand is a marine pest formally designated as an unwanted organism under the Biosecurity Act. In early June 2013, four Styela individuals were found in the inner part of Picton marina, representing the first reported range extension of Styela into Marlborough. The purpose of this report is to provide background technical information on the biology of Styela, summarise the results of two Styela surveys, and discuss some of the key requirements and considerations for effective management.
1.2 MB • PDF File • 10 February 2014
Brief on Incursion Exercise
A marine biosecurity incursion exercise was conducted by the Top of the South Marine Biosecurity Partnership at Port Nelson on 15 May 2013. The aim of this exercise was to test the effectiveness of the top of the South Partnership response procedures in the event a marine biosecurity threat is discovered. A secondary aim was for participants to learn by being involved or observing the exercise.
164 KB • PDF File • 10 June 2013
This report to the Nelson City Council reviews actions taken on notification of an incursion of the fanworm Sabella spallanzanii in Nelson Harbour. Identification has been confirmed but spawning is unlikely to have occurred due to immaturity of the specimens examined and that there appeared to be a single age class of worms on the vessel.
543 KB • PDF File • 4 June 2013
This guide contains the top 11 marine pest species that we don't want in New Zealand. You can help us by reporting any suspect marine animal or plant.
2.8 MB • PDF File • 29 April 2013