RV Kaharoa
.png) RV Kaharoa (2008) | |
| History | |
|---|---|
 New Zealand | |
| Owner | Kaharoa Marine Services |
| Launched | 1981 |
| Home port | Dunedin |
| General characteristics | |
| Type | Survey ship |
| Displacement | 300 tonnes |
| Length | 28.0 m (91 ft 10 in) |
| Beam | 8.2 m (26 ft 11 in) |
| Draft | 3.2 m (10 ft 6 in) |
| Speed | 10.5 knots (19.4 km/h; 12.1 mph) |
RV Kaharoa is a research vessel previously operated by the National Institute of Water and Atmospheric Research (NIWA) of New Zealand. Launched in 1981, the vessel has undertaken a wide range of surveys, data from which has led to the discovery of several new species, such as a new species of eelpout, five new species of Fissuroderes and a new species of copepod in the genus Bradyidius. The ship has played a "key role" in the International Argo Project. Kaharoa's replacement vessel, RV Kaharoa II, was delivered in 2024. Kaharoa is now operated by Kaharoa Marine Services
History
Launched in 1981, the ship is 28 metres (91 ft 10 in) long, with a 3.2-metre (10 ft) draft. It has a cruising speed of 10.5 knots (19.4 km/h; 12.1 mph).[1]
RV Kaharoa is scheduled to be replaced by RV Kaharoa II in 2024. It is 8 metres (26 ft 3 in) longer than the Kaharoa and has increased capacity for staff, as well as laboratory and desk-based research.[2] Within NIWA, the ship was nicknamed 'The Little Ship That Can', due its size and performance.[2] By early 2020 it was decided a vessel to replace Kaharoa was required due to the vessel reaching the end of its operational life.[3] Her replacement, Kaharoa II arrived in New Zealand mid-2024 to continue the marine research undertaken by Kaharoa over the previous 40 years.[4]
Research
Scientific discoveries
As a research vessel, it has been involved in a number of scientific discoveries. In 2012 the University of Aberdeen's OceanLab expedition found 'supergiant amphipods' up to 34 centimetres (13 in) long in the Kermadec Trench, identified as the species Alicella gigantea.[5][6][7] In 2013 a further iteration of the OceanLab project using the Kaharoa led to the discovery of a new species of eelpout, as well as new depth records for species of deep sea cusk eel and rattail.[8][9] RV Kaharoa also contributed to the discovery of five new species of Fissuroderes, found off the coast of Costa Rica and the Firth of Thames.[10] Another example of the ship's role in scientific discovery is that of a new species of copepod in the genus Bradyidius.[11]
Fisheries surveys
The ship has also undertaken a wide range of fisheries surveys.[12][13][14][15] Some examples include: assessment of juvenile snapper, 2019–21;[16][17] species in the Hauraki Gulf with RV Ikatere;[18] amongst others. The ship was also used to survey the sea floor to measure and analyse the impact that Cyclone Gabrielle had on it in 2023.[19]
Argo float project
The ship is part of the International Argo Project, a float deployment scheme focussed on climate and oceanic data,[20] as well as the Global Drifter Program.[21] The ship has deployed Argo floats since 2014, concentrating on getting the floats to areas with low maritime traffic in the Southern Hemisphere, sailing 79,996 nautical miles as part of the project.[21][22] In 2020, during the COVID-19 pandemic, the crew of the Kaharoa undertook their longest voyage to date, to continue to support the deployment of Argo floats – work that had been delayed due to lockdown restrictions globally.[20] The ship has played a "key role in the global deployment ... of the Argo array".[23]
As of 2024, NIWA estimates Kaharoa to have deployed about a quarter of all Argo floats.[24]
References
- ↑ "RV Kaharoa | NIWA". niwa.co.nz. Retrieved 13 July 2024.
- 1 2 "Passing on the torch | NIWA". niwa.co.nz. Retrieved 13 July 2024.
- ↑ "New research vessel for Niwa being built in Spain". www.stuff.co.nz. 15 September 2022. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "Archived copy". Archived from the original on 15 March 2026. Retrieved 17 March 2026.
{{cite web}}: CS1 maint: archived copy as title (link) - ↑ "World's Largest Supergiant Prawns Sighted In New Zealand's Kermadec Trench". Asian Scientist Magazine. 3 February 2012. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "'Supergiant' crustacean found in deepest ocean". BBC News. 2 February 2012. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ Jamieson, A. J.; Lacey, N. C.; Lörz, A. -N.; Rowden, A. A.; Piertney, S. B. (1 August 2013). "The supergiant amphipod Alicella gigantea (Crustacea: Alicellidae) from hadal depths in the Kermadec Trench, SW Pacific Ocean". Deep Sea Research Part II: Topical Studies in Oceanography. Deep-Sea Biodiversity and Life History Processes. 92: 107–113. doi:10.1016/j.dsr2.2012.12.002. ISSN 0967-0645. Archived from the original on 15 April 2017. Retrieved 25 July 2024.
- ↑ NIWA. "New finds from the deep sea off New Zealand". phys.org. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "New fish discovered in one of deepest points on Earth | News | The University of Aberdeen". www.abdn.ac.uk. Archived from the original on 7 August 2024. Retrieved 13 July 2024.
- ↑ Neuhaus, Birger; Blasche, Tina (10 July 2006). "Fissuroderes, a new genus of Kinorhyncha (Cyclorhagida) from the deep sea and continental shelf of New Zealand and from the continental shelf of Costa Rica". Zoologischer Anzeiger. 245 (1): 19–52. Bibcode:2006ZooAn.245...19N. doi:10.1016/j.jcz.2006.03.003. ISSN 0044-5231.
- ↑ Bradford-Grieve, Janet M. (2003). "A new species of benthopelagic calanoid copepod of the genus Bradyidius Giesbrecht, 1897 (Calanoida: Aetideidae) from New Zealand". New Zealand Journal of Marine and Freshwater Research. 37 (1): 95–103. Bibcode:2003NZJMF..37...95B. doi:10.1080/00288330.2003.9517149. ISSN 0028-8330. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "Review of inshore trawl surveys off the west coast North Island". www.fao.org. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "Inshore trawl survey of the west coast South Island and Tasman and Golden Bays, March–April 2019". www.fao.org. Retrieved 13 July 2024.
- ↑ Holmes, S. J., R. J. Hurst, and J. Hamill. "Estimation of fishing efficiency and catchability of key species on RV Kaharoa South Island trawl surveys." Archived 14 July 2024 at the Wayback Machine New Zealand Fisheries Assessment Report (2021): 72.
- ↑ Murray, Talbot, Kevin Bailey, and N. Z. Wellington. "Preliminary report of RV Kaharoa cruises K03/86 and K05/86-oceanography and albacore catch rates." Archived 13 July 2024 at the Wayback Machine First South Pacific Albacore Research (SPAR) Workshop, 9e12 June. 1986.
- ↑ Parsons, D. M., and R. Bian. "Trawl surveys of the Hauraki Gulf and Bay of Plenty in 2020 and 2021 to estimate the abundance of juvenile snapper." Archived 18 May 2024 at the Wayback Machine New Zealand Fisheries Assessment Report 10 (2022): 138.
- ↑ Parsons, Darren; Bian, Richard; Parkinson, Derrick; MacGibbon, Dan (2021). Trawl surveys of the Hauraki Gulf and Bay of Plenty in 2019 and 2020 to estimate the abundance of juvenile snapper (Report). Ministry for Primary Industries. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ Kendrick, Terese H.; Francis, Malcolm P. (2002). "Fish assemblages in the Hauraki Gulf, New Zealand". New Zealand Journal of Marine and Freshwater Research. 36 (4): 699–717. Bibcode:2002NZJMF..36..699K. doi:10.1080/00288330.2002.9517124. ISSN 0028-8330. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ "Revealed: The shocking damage Cyclone Gabrielle caused to the sea floor". Newshub. Archived from the original on 8 May 2024. Retrieved 13 July 2024.
- 1 2 "NIWA crew leaving for four months at sea, for ocean research project". Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- 1 2 "Argo float deployments from the RV Kaharoa". Argo. 11 May 2020. Archived from the original on 16 July 2024. Retrieved 13 July 2024.
- ↑ "Argo Floats – RV Kaharoa". sites.google.com. Archived from the original on 13 July 2024. Retrieved 13 July 2024.
- ↑ Church, John A.; Woodworth, Philip L.; Aarup, Thorkild; Wilson, W. Stanley (1 December 2010). Understanding Sea-level Rise and Variability. John Wiley & Sons. ISBN 978-1-4443-4077-8.
- ↑ "New research vessel to help with better results". Radio New Zealand. 19 August 2024. Archived from the original on 21 August 2024. Retrieved 21 August 2024.