First mechanised Caulerpa dredging machine - Printable Version +- Too Many Message Boards (https://tmmb.co.nz/forums) +-- Forum: General Topics (https://tmmb.co.nz/forums/forumdisplay.php?fid=5) +--- Forum: News and Current Affairs (https://tmmb.co.nz/forums/forumdisplay.php?fid=74) +--- Thread: First mechanised Caulerpa dredging machine (/showthread.php?tid=2847) |
First mechanised Caulerpa dredging machine - Lilith7 - 25-01-2024 To be used to try to remove the invasive weed, hope it works. https://www.nzherald.co.nz/northern-advocate/news/new-zealand-first-dredging-machine-tackles-invasive-caulerpa-in-bay-of-islands/CRPX5A5IMVCO3MEIKARNH3Q4PI/ "The new mechanical suction dredge is at the centre of a $650,000 trial expected to be a game changer in the fight against caulerpa. “We’re effectively moving from the equivalent of weeding by hand, to a mechanised approach for removing caulerpa from the sea floor,” Northland Regional Council (NRC) marine biosecurity manager and national marine invasions specialist Dr Kaeden Leonard said. The Government-funded Omākiwi Cove caulerpa trial is an NRC-led joint project with the Ministry for Primary Industries (MPI) plus Te Rawhiti hapū Ngati Kuta and Patukeha. If successful, its mechanical harvesting will potentially expand to bigger areas of the Bay of Islands, Aotea/Great Barrier Island and around the world." RE: First mechanised Caulerpa dredging machine - joe 90 - 27-01-2024 Horizons RC spent Mill$ on weed harvester for Lake Horowhenua to harvest the lake weed thats choking it did a trial run but then t iwi owners put the stop to it & it now stands rusting away . RE: First mechanised Caulerpa dredging machine - Oh_hunnihunni - 27-01-2024 The trouble with machine removal is the damage it does to other species... RE: First mechanised Caulerpa dredging machine - joe 90 - 28-01-2024 (27-01-2024, 05:41 PM)Oh_hunnihunni Wrote: The trouble with machine removal is the damage it does to other species... Lake horowhenua has hardly any left it so toxic RE: First mechanised Caulerpa dredging machine - Lilith7 - 28-01-2024 (28-01-2024, 04:38 PM)joe 90 Wrote:(27-01-2024, 05:41 PM)Oh_hunnihunni Wrote: The trouble with machine removal is the damage it does to other species... Perhaps at some future point they may be able to fix it somehow. RE: First mechanised Caulerpa dredging machine - nzoomed - 29-01-2024 The sooner they get onto it the better, I dont know how fast it spreads in the wild if boats anchors dont touch the stuff, my main concern is how you can find every last speck of the stuff in the bottom of the ocean. Much harder than getting rid of plants on land, and thats bad enough. RE: First mechanised Caulerpa dredging machine - Lilith7 - 29-01-2024 (29-01-2024, 10:54 AM)nzoomed Wrote: The sooner they get onto it the better, I dont know how fast it spreads in the wild if boats anchors dont touch the stuff, my main concern is how you can find every last speck of the stuff in the bottom of the ocean. I wonder if somehow they could lay some kind of matting over it & sort of smother the damn thing, but I suppose that might not be possible. RE: First mechanised Caulerpa dredging machine - Oh_hunnihunni - 29-01-2024 Again, you would smother more than the pest plant. Infestations only occur because a living species finds an environment that it can exploit. The population then expands to fill that niche, and when exponential growth reaches a tipping point the population collapses, another species or community moves in and the process starts all over again. Human beings should be only too aware of this because that is exactly what we do as a species. As far as most other species of living things go we ARE that pest species. Can we invent a machine to sort that challenge out? Heavens no, we just eradicate other life forms instead. RE: First mechanised Caulerpa dredging machine - Lilith7 - 29-01-2024 (29-01-2024, 12:16 PM)Oh_hunnihunni Wrote: Again, you would smother more than the pest plant. Once the area was cleared though it might be possibe to gradually replace everything which was once there...mind you, we'd probably find a way to stuff it up again. Perhaps a machine/medical treatment to allow humans to more readily use commonsense... RE: First mechanised Caulerpa dredging machine - nzoomed - 29-01-2024 (29-01-2024, 11:01 AM)Lilith7 Wrote:(29-01-2024, 10:54 AM)nzoomed Wrote: The sooner they get onto it the better, I dont know how fast it spreads in the wild if boats anchors dont touch the stuff, my main concern is how you can find every last speck of the stuff in the bottom of the ocean. They have been doing that in Queenstown where there is an invasive weed in their lake. I think its working for them, but might be different for this weed. RE: First mechanised Caulerpa dredging machine - Lilith7 - 29-01-2024 (29-01-2024, 04:45 PM)nzoomed Wrote:(29-01-2024, 11:01 AM)Lilith7 Wrote: I wonder if somehow they could lay some kind of matting over it & sort of smother the damn thing, but I suppose that might not be possible. Yes, I think I heard a bit about that, hope it works for them. RE: First mechanised Caulerpa dredging machine - Oh_hunnihunni - 30-01-2024 https://www.nzherald.co.nz/hawkes-bay-today/news/yellow-water-lily-eradicated-in-hawkes-bay/XBKOXIDOBZD5HJTBWY3WNIA754/ RE: First mechanised Caulerpa dredging machine - Lilith7 - 30-01-2024 (30-01-2024, 12:58 PM)Oh_hunnihunni Wrote: https://www.nzherald.co.nz/hawkes-bay-today/news/yellow-water-lily-eradicated-in-hawkes-bay/XBKOXIDOBZD5HJTBWY3WNIA754/ That's encouraging, just a shame it takes so long but who knows what they might come up with in the future, as we learn more about it. RE: First mechanised Caulerpa dredging machine - Oh_hunnihunni - 30-01-2024 Gardening is not a fast process... RE: First mechanised Caulerpa dredging machine - Lilith7 - 30-01-2024 (30-01-2024, 05:17 PM)Oh_hunnihunni Wrote: Gardening is not a fast process... True that, dammit... RE: First mechanised Caulerpa dredging machine - harm_less - 30-01-2024 (30-01-2024, 05:17 PM)Oh_hunnihunni Wrote: Gardening is not a fast process...Nature moves at its own pace. It's just a shame that we're able to screw it up so rapidly |